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Intel IT/IR RAID Software User Guide

1. Figure 1 Typical Integrated Mirroring Implementation The advantage of an IM IME volume is that there is always a second mirrored copy of the data While writes take longer because data must be written twice performance is actually improved during reads Figure 2 shows the logical view and physical view of an IM volume Logical View Physical View in aan ae ae Se especies Cs Ed Cer Figure 2 Integrated Mirroring Volume An IME volume can be configured with up to ten mirrored disks one or two global hot spares can also be added Figure 3 shows the logical view and physical view of an Integrated Mirroring Enhanced IME volume with three mirrored disks Each mirrored stripe is written to a disk and mirrored to an adjacent disk This type of configuration is also called RAID 1E D Intel IT IR RAID Software User s Guide 7 Logical View Physical View Mirrored Stripe 1 Mirrored Stripe 3 Mirrored Stripe 2 Mirrored Stripe 2 Mirrored Stripe 3 Mirrored Stripe 6 Mirrored Stripe 4 Mirrored Stripe 5 Mirrored Stripe 5 Mirrored Stripe 6 Mirrored Stripe n Mirrored Stripe n 1 Mirrored Stripe n Figure 3 Integrated Mirroring Enhanced with Three Disks The BIOS configuration utility enables you to create IM and IME volumes during initial setup and to reconfigure them in response to hardware failures or changes in the environment IR RAID Firmware Resynchronization with Concurrent Host I O Oper
2. In addition you can create one or two hot spares for the IM IME array s The following guidelines also apply when creating an IM or IME volume e All physical disks in a volume must be either SATA with extended command set support or SAS with SMART support SAS and SATA disks cannot be combined in the same volume However you can create one volume with SAS disks and a second volume with SATA disks on the same controller D Intel IT IR RAID Software User s Guide 1 e Disks must have 512 byte blocks and must not have removable media An IM volume must have two drives An IME volume can have three to ten drives In addition one or two hot spares can be created for the IM IME volume s Note Ifa disk in an IM IME volume fails it is rebuilt on the global hot spare if one is available Intel recommends that you always use hot spares with IM IME volumes Creating an IM Volume To create an IM volume with the LSI MPT SAS BIOS Configuration Utility follow these steps 1 On the Adapter List screen use the arrow keys to select an adapter 2 Press lt Enter gt to go to the Adapter Properties screen shown in Figure 4 Figure 4 Adapter Properties Screen 3 On the Adapter Properties screen use the arrow keys to select RAID Properties on the screen and press lt Enter gt 4 When prompted to select a volume type select Create IM Volume The Create New Array screen shows a list of disks available to be added to
3. Integrated Striping Ex Mple vniccciercescccccuiveceicecevnncecusvednenes secbacetonenca escncetieta ecceateanett 20 Figure 8 Integrated Striping Logical and Physical Views rrrrnvrnnnnnnnnrnnnnnnnrrnnnorrrrrnnnnnnnnnn 21 Figure 9 Adapter Properties Green 24 Figure 10 Create New Array Screen sisiccisccsicietinseeinetesantercadveceervnnisbeemeiecauetenenctinmeeceeteedurakiens 25 D Intel IT IR RAID Software User s Guide V vi D Intel IT IR RAID Software User s Guide 1 Overview The Intel IT IR RAID Software User s Guide explains how to configure and use the components of the Intel IT IR RAID Software with the Intel IT IR RAID Controllers The features and benefits of each controller are also provided Supported Hardware The Intel IT IR RAID Solution can be used with the following Intel IT IR RAID Controllers e Intel RAID Controller SASWTAI e Intel RAID Controller SASUC8I e Intel RAID SAS Controller FALSASMP2 without Intel SAS RAID Activation Key AXXRAKSAQ2 installed e Intel RAID SAS Riser Controller AFCSASRISER in Intel Server System S7000FC4UR without Intel SAS RAID Activation Key AXXRAKSAQ92 installed Intel SAS Entry RAID Module AXX4SASMOD Software The Intel IT IR RAID Controller can be managed in the following operating systems using Intel RAID Web Console 2 e Microsoft Windows Server 2008 Microsoft Windows Server 2003 and Microsoft Windows XP e Red Hat
4. Enterprise Linux 4 0 and 5 0 e SuSE Linux Enterprise Server 9 and 10 Note The operating systems listed here may not be supported by your server board See the tested operating system list for your server board at http support intel com support motherboards server D Intel IT IR RAID Software User s Guide Introduction The Intel IT IR RAID Solution provides cost benefits for the server or workstation market where the extra performance storage capacity and redundancy of a RAID configuration are required The components of Intel IT IR RAID are IT Mode Native SAS mode without RAID function Supports up to 122 physical devices IR Mode This mode includes the following components Integrated Mirroring IM Supports two disk mirrored arrays and hot spare disks Integrated Mirroring Enhanced IME Supports mirrored arrays with three to ten disks plus hot spare disks Integrated Striping IS Supports striped arrays with two to ten disks By simplyfying the configuration options and providing firmware RAID support for its host adapters Intel can offer the Intel IT IR RAID solution at a lower cost Fusion MPT firmware supports IM IME and IS volumes You can create up to two Intel IT IR RAID storage volumes on the same Intel IT IR RAID Controller Intel IT IR RAID Benefits and Features Intel IT IR RAID has the following benefits and features Support for up to ten disks per IME or I
5. LEDs on the disk drives will flash as described above if the firmware is correctly configured and the drives or the disk enclosure supports disk location Selecting a Boot Disk You can select a boot disk in the SAS Topology screen This disk is then moved to scan ID 0 on the next boot and remains at this position This makes it easier to set BIOS boot device options and to keep the boot device constant during device additions and removals There can be only one boot disk To select a boot disk follow these steps 1 In the LSI MPT SAS BIOS Configuration Utility select an adapter from the Adapter List 2 Select the SAS Topology option The current topology is displayed If the selection of a boot device is supported the bottom of the screen lists the lt Alt gt lt B gt option This is the key for toggling the boot device If a device is currently configured as the boot device the Device Info column on the SAS Topology screen will show the word Boot To select a boot disk move the cursor to the disk and press lt Alt gt lt B gt 4 To remove the boot designator move the cursor down to the current boot disk and press lt Alt gt lt B gt This controller will no longer have a disk designated as boot 5 To change the boot disk move the cursor to the new boot disk and press lt Alt gt lt B gt The boot designator will move to this disk Note The firmware must be configured correctly for the lt Alt
6. gt lt B gt feature to work D Intel IT IR RAID Software User s Guide 27 28 D Intel IT IR RAID Software User s Guide 6 Intel IT IR RAID Management Under Operating Systems This chapter introduces the RAID management utility for Intel IT IR RAID under operating systems Operating System Installation For information about installing operating systems on Intel IT IR RAID refer to the Intel RAID Drivers section in the Intel RAID Software User s Guide Using Intel RAID Web Console 2 to Manage Intel IT IR RAID For information about using this utility to manage RAID under various operating systems refer to the Intel RAID Web Console 2 section in the Intel RAID Software User s Guide Warning For hard drives that are in IT non RAID mode under operating systems data will be lost if using Intel RAID Web Console 2 to create Intel IT IR RAID This happens even if partitions have already been made to the IT mode drives under operating systems D Intel IT IR RAID Software User s Guide 29 30 D Intel IT IR RAID Software User s Guide
7. secondary disk SMART Support SMART is a technology that monitors hard disk drives for signs of future disk failure and generates an alert if such signs are detected The firmware polls each physical disk in the volume at regular intervals If the firmware detects a SMART ASC ASCQ code on a physical disk in the IM IME volume it processes the SMART data and stores it in nonvolatile memory The IM IME volume does not support SMART directly since it is just a logical representation of the physical disks in the volume Hot Spare Disk One or two disk drives per controller can be configured as global hot spare disks to protect data on the IM IME volumes that are configured on the controller If the firmware fails one of the mirrored disks it automatically replaces the failed disk with a hot spare disk and then resynchronizes the mirrored data The firmware is automatically notified when the failed disk has been replaced and it then designates the failed disk as the new hot spare Media Verification The firmware supports a background media verification feature that runs at regular intervals when the IM IME volume is in optimal state If the verification command fails for any reason the other disk s data for this segment is read and written to the failing disk in an attempt to refresh the data The current Media Verification Logical Block Address is written to nonvolatile memory occasionally to allow media verification to continue approximate
8. the Intel IT IR RAID firmware Metadata Support The firmware supports metadata which describes the IS logical drive configuration stored on each member disk When the firmware is initialized each member disk is queried to read the stored metadata to verify the configuration The usable disk space for each IS member disk is adjusted down to a lower value when the configuration is created in order to leave room for this data SMART Support SMART is a technology that monitors hard disk drives for signs of future disk failure and generates an alert if such signs are detected The firmware polls each physical disk in the volume at regular intervals If the firmware detects a SMART ASC ASCQ code on a physical disk in the IS volume it processes the SMART data and stores it in nonvolatile memory The IS volume does not support SMART directly since it is just a logical representation of the physical disks in the volume Disk Write Caching Disk write caching is enabled by default on all IS volumes D Intel IT IR RAID Software User s Guide el Fusion MPT Support 22 The BIOS uses the Fusion MPT interface to communicate to the SAS controller and firmware to enable IS This includes reading the Fusion MPT configuration to gain access to the parameters that are used to define behavior between the SAS controller and the devices connected to it The Fusion MPT drivers for all supported operating systems implement the Fusion MPT interfa
9. volume with SATA disks and a second volume with SAS disks Fusion MPT architecture Easy to use BIOS based configuration utility Error notification The drivers update an OS specific event log LED status support Write journaling which allows automatic synchronization of potentially inconsistent data after unexpected power down situations Metadata used to store volume configuration on mirrored disks Automatic background resynchronization while the host continues to process inputs outputs I Os Background media verification ensures that data on IM IME volumes is always accessible Description The Intel IT IR RAID solution supports one or two IM IME volumes on each Intel IT IR RAID Controller or one IM IME volume and one Integrated Striping volume Typically one of these volumes is the boot volume as shown in Figure 1 Boot support is available through the firmware of the Intel IT IR RAID Controller that supports the standard Fusion MPT interface The runtime mirroring of the boot disk is transparent to D Intel IT IR RAID Software User s Guide the BIOS drivers and operating system Host based status software monitors the state of the mirrored disks and reports any error conditions Figure 1 shows an IM implementation with a second disk as a mirror of the first primary disk IM Volume TO Primary Mirror NVSRAM For Write Journaling LSI Logic Fusion MPT Controller FLASH For Configuration
10. volumes Viewing Volume Properties To view the properties of volumes follow these steps 1 In theLSI MPT SAS BIOS Configuration Utility select an adapter from the Adapter List 2 Select the RAID Properties option The properties of the current volume are displayed If global hot spares are defined they are also listed Note If you create one volume using SAS disks another volume using SATA disks and another using global hot spare disks the hot spare disks will only appear when you view the volume that has the same type of disks as the hot spare disks 3 Iftwo volumes are configured press lt Alt gt lt N gt to view the other array 4 To manage the current array select Manage Array and press lt Enter gt Synchronizing an Array The Synchronize Array command forces the firmware to resynchronize the data on the mirrored disks in the array It is seldom necessary to use this command because the firmware automatically keeps the mirrored data synchronized during normal operation When you use this command one disk of the array is placed in a degraded state until the data on the mirrored disks has been resynchronized To force the synchronization of a selected array follow these steps 1 Select Synchronize Array on the Manage Array screen 2 Press lt Y gt to start the synchronization or lt N gt to cancel it Activating an Array An array can become inactive if it is removed from one controller or comput
11. IME Volume To create an IME volume with the LSI MPT SAS BIOS Configuration Utility follow these steps 1 On the Adapter List screen use the arrow keys to select an Intel IT IR RAID Controller 2 Press lt Enter gt to load the Adapter Properties screen shown in Figure 4 On the Adapter Properties screen use the arrow keys to select RAID Properties on the screen and press lt Enter gt 4 When prompted to select a volume type choose Create IME Volume The Create New Array screen shows a list of disks that can be added to a volume 5 Move the cursor to the RAID Disk column and select a disk To add the disk to the volume change the No to Yes by pressing the lt gt or lt gt keys or the space bar 6 Repeat this step to select a total of three to ten disks for the volume All existing data on all the disks you select will be overwritten As you add disks the Array Size field changes to reflect the size of the new volume D Intel IT IR RAID Software User s Guide 13 7 Optional Add one or two global hot spares to the volume by moving the cursor to the hot spare column and pressing the lt gt or lt gt keys or the space bar 8 When the volume has been fully configured press lt C gt and then select Save changes Exit the menu to commit the changes The utility pauses while the array is created Creating a Second IM or IME Volume Intel IT IR RAID Controllers allow you to configure two IM or IME v
12. IT IR RAID Controller The IM IME feature uses the same device drivers as the IT non RAID mode controllers providing seamless and transparent fault tolerance This eliminates the need for complex backup software or expensive RAID hardware The IM IME feature operates independently from the operating system in order to conserve system resources The BIOS based configuration utility makes it easy to configure IM and IME volumes Features Integrated Mirroring and Integrated Mirroring Enhanced support the following featurs Configurations of one or two IM or IME volumes on the same Intel IT IR RAID Controller IM volumes have two mirrored disks IME volumes have three to ten mirrored disks Two volumes can have up to a total of 12 disks Note This feature requires IR RAID firmware v1 20 00 or above to be installed One or two global hot spare disks per controller to automatically replace failed disks in IM IME volumes The hot spare drivess are in addition to the 12 disk maximum for two volumes per Intel IT IR RAID Controller Note Support for two hot spare disks requires IR RAID firmware v1 20 00 or above Mirrored volumes run in optimal mode or in degraded mode if one mirrored disk fails Hot swap capability Presents a single virtual drive to the OS for each IM IME volume Supports both SAS and SATA disks The two types of disks cannot be combined in the same volume However a Intel IT IR RAID Controller can support one
13. Intel IT IR RAID Software User s Guide Revision 2 0 December 2008 Intel Order Number E53662 002 DISCLAIMER INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL R PRODUCTS NO LICENSE EXPRESS OR IMPLIED BY ESTOPPEL OR OTHERWISE TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT EXCEPT AS PROVIDED IN INTEL S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS INTEL ASSUMES NO LIABILITY WHATSOEVER AND INTEL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY RELATING TO SALE AND OR USE OF INTEL PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE MERCHANTABILITY OR INFRINGEMENT OF ANY PATENT COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT Intel products are not intended for use in medical life saving life sustaining applications Intel may make changes to specifications and product descriptions at any time without notice Intel is a trademark or registered trademark of Intel Corporation or its subsidiaries in the United States and other countries Other names and brands may be claimed as the property of others Copyright 2008 by Intel Corporation Portions Copyright 2005 2008 by LSI Corporation All rights reserved Intel IT IR RAID Software User s Guide Table of Contents Chapter 1 OvervieW uLgsusaenbkroneeumni iaanebenerdadndadidde 1 Supported Hardware ERE EE 1 STE Ne 1 ae Tor ol ERE PE EEE RE NE ee 2 Intel IT IR RAID Benefits and Features c ccccscccsssesss
14. S volume with one or two storage volumes per Intel IT IR RAID Controller Each controller can support up to 12 volume disks plus one or two hot spare disks for a maximum of 14 disks per controller Note Support for this number of disks requires IT IR RAID firmware v1 20 00 or above e Support for two disk IM mirrored volumes Low cost RAID volume creation meets the needs of most internal RAID installations e Easy to use installation and configuration System can boot from an IM IME or IS volume No special OS specific software is required High reliability and data integrity Non volatile write journaling Physical disks not visible to the OS or to the application software Low host CPU and PCI bus utilization D 2 Intel IT IR RAID Software User s Guide e Fusion MPT architecture provides processing power Shared memory architecture minimizes external memory requests Functionality is contained in device hardware and firmware Using this Manual e Chapters 2 and 3 of this User s Guide list IM and IME features and explain how to create IM and IME volumes and optional hot spare disks e Chapters 4 and 5 list Integrated Striping features and explain how to create Integrated Striping IS volumes e Chapter 6 introduces the RAID management utility for Intel IT IR RAID under different operating systems D Intel IT IR RAID Software User s Guide D Intel IT IR RAID Software User s Guide Integrat
15. Use of metadata to store volume configuration on disks D Intel IT IR RAID Software User s Guide 19 e OS specific event log Error display inside the Fusion MPT BIOS LED support for drives used in IS volumes Description The IS feature writes data across multiple disks instead of onto one disk This is accomplished by partitioning each disk s storage space into 64 KB stripes These stripes are interleaved round robin so that the combined storage space is composed alternately of stripes from each disk For example as shown in Figure 7 segment is written to disk 1 segment 2 is written to disk 2 segment 3 is written to disk 3 and so on When the system reaches the end of the disk list it continues writing data at the next available segment of disk 1 LSI Logic Fusion MPT Controller Segment 1 Segment 2 Segment 3 Segment 4 Segment 5 Segment 6 Segment 7 Segment 8 Segment 9 Segment 10 Segment 11 Segment 12 Figure 7 Integrated Striping Example Figure 8 shows a logical view and a physical view of Integrated Striping configuration D Intel IT IR RAID Software User s Guide Logical View Physical View Figure 8 Integrated Striping Logical and Physical Views The primary advantage of IS is speed because it transfers data to or from multiple disks at once However there is no data redundancy therefore if one disk fails that data is lost Integrated Striping Firmware This section describes features of
16. a volume 5 Move the cursor to the RAID Disk column and select a disk To add the disk to the volume change the No to Yes by pressing the lt gt or lt gt keys or the space bar When the first disk is added the utility prompts you to either keep existing data or overwrite existing data 6 Press lt M gt to keep the existing data on the first disk or press lt D gt to overwrite it If you keep the existing data this is called a data migration The first disk will be mirrored onto the second disk so any data you want to keep must be on the first disk selected for the volume Data on the second disk is overwritten The first disk must have 512 KB available for metadata after the last partition D 12 Intel IT IR RAID Software User s Guide As disks are added the Array Size field changes to reflect the size of the new volume 7 Optional Add one or two global hot spares by moving the cursor to the hot spare column and pressing the lt gt or lt gt keys or the space bar Figure 5 shows an IM volume configured with one global hot spare disk T3808110AS Primary T3808110AS Secondary S T3808110AS Hot Spare ST38 811 AS Nol Max Dsks Figure 5 Create New Array Screen 8 When the volume has been fully configured press lt C gt and select Save Changes Then exit this menu to commit the changes The LSI MPT SAS BIOS Configuration Utility pauses while the array is created Creating an
17. ation The IR RAID firmware allows host I Os to continue on an IM or IME volume while the volume is being re synchronized in the background Resynchronization is attempted after a hot spare is activated due to a physical device failure or after a hot swap has occurred to a physical disk in the volume Metadata Support The firmware supports metadata which describes the IM IME logical drive configuration stored on each member disk When the firmware is initialized each member disk is queried to read the stored metadata in order to verify the configuration The usable disk space for each member disk is adjusted down to a lower value when the configuration is created in order to leave room for this data Hot Swapping The firmware supports hot swapping The hot swapped disk is automatically resynchronized in the background without any host or user intervention The firmware detects hot swap disk removal and insertion D 8 Intel IT IR RAID Software User s Guide Following a hot swap event the firmware readies the new physical disk by spinning it up and verifying that it has enough capacity for the mirrored volume The firmware resynchronizes all hot swapped disks that have been removed even if the same disk is re inserted In a two disk mirrored volume the firmware marks the hot swapped disk as the secondary disk and marks the other mirrored disk as the primary disk The firmware resynchronizes all data from the primary disk onto the new
18. ce to communicate with the controller and firmware D Intel IT IR RAID Software User s Guide 5 Creating Integrated Striping Volumes This chapter explains how to create Integrated Striping IS volumes using the LSI MPT SAS BIOS Configuration Utility IS Configuration Overview You can use the LSI MPT SAS BIOS Configuration Utility to create one or two IS volumes with up to a total of 12 drives on an Intel IT IR RAID Controller Each volume can have from two to ten drives Disks in an IS volume must be connected to the same Intel IT IR RAID Controller and the controller must be in the BIOS boot order Although you can use disks of different size in IS volumes the smallest disk determines the logical size of each disk in the volume In other words the excess space of the larger member disk s is not used Usable disk space for each disk in an IS volume is adjusted down to a lower value in order to leave room for metadata Usable disk space may be further reduced to maximize the ability to interchange disks in the same size classification The supported stripe size is 64 kbytes For more information about Integrated Striping volumes see Features on page 19 Creating IS Volumes The LSI MPT SAS BIOS Configuration Utility is part of the Fusion MPT BIOS When the BIOS loads during boot and you see the message about the utility press lt Ctrl gt lt C gt to start it After you do this the message changes to Pl
19. d remains at this position This makes it easier to set the BIOS boot device options and to keep the boot device constant during device additions and removals There can only be one boot disk To select a boot disk follow these steps l In the LSI MPT SAS BIOS Configuration Utility select an adapter from the Adapter List Select the SAS Topology option The current topology is displayed If the selection of a boot device is supported the bottom of the screen lists the lt Alt gt lt B gt option This is the key for toggling the boot device If a device is currently configured as the boot device the Device Info column on the Topology screen will show the word Boot To select a boot disk move the cursor to the disk and press lt Alt gt lt B gt To remove the boot designator move the cursor down to the current boot disk and press lt Alt gt lt B gt This controller will no longer have a disk designated as boot To change the boot disk move the cursor to the new boot disk and press lt Alt gt lt B gt The boot designator will move to this disk Note The firmware must be configured correctly in order for the lt Alt gt lt B gt feature to work D Intel IT IR RAID Software User s Guide 4 Overview of Integrated Striping This chapter provides an overview of the Intel IT IR RAID Integrated Striping IS feature Introduction The Intel IT IR RAID Integrated Striping IS feature i
20. eaessemedaumbaumvmdumidaanmmnnldadt 21 Metadata SUpport EE 21 SMT lee EE 21 NI We E 21 FT ANNE 22 Chapter 5 Creating Integrated Striping Volumes rrnnnnnnnnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnvnnnnr 23 IS Configuration e TEE 23 Creating EEN Eeg 23 Creating a Second IS Volume seccsicccicescedsssccecceisicsesnecttelasceascseesntcabaneusaseciarecceeeeastiseserendaunaacs 25 Other Configuration Tasks save 26 Viewing IS Volume Properties AAA 26 Activating An Alay sisipin irirna anaren REE NANENANE Ea KERET 26 Deleting an Array E 26 Locating a Disk Drive or Multiple Disk Drives in a Volume 27 Sel cting a Boot DISK REE a Fa d eaea Eae ee a ar eieaa 27 Chapter 6 Intel IT IR RAID Management Under Operating Systems 29 Operating System Installation ccccceeeseceeeeeeeeceeeeeeeceeeeesaeeeeeeaaeaeeeesesaeeeeeaeaaeeseesaeeeneeneaes 29 Using Intel RAID Web Console 2 to Manage Intel IT IR RAID nosses 29 Intel IT IR RAID Software User s Guide List of Figures Figure 1 Typical Integrated Mirroring Implementaton eee eeeeeeeeeeeeeeeennneeeeeeeeeeeetneeeeeeeeees 7 Figure 2 Integrated Mirroring Volume rvennnnnnnnnnnnnnnvnnnnnnnnnnnnnnvnnnnenennonnnnnnnnnnnnnennnnnnnvennnnennnn 7 Figure 3 Integrated Mirroring Enhanced with Three DiskS rrrrrvnnnnnnnrnvrnnnrnrnvnnrnvrrnnnnrrrnnnnrnennn 8 Figure 4 Adapter Properties Gcreen Abu 12 Figure 5 Create New Array Green 13 Figure 6 Manage Array Seed 15 Figure 7
21. ease wait Invoking Configuration Utility After a brief pause the main menu of the LSI MPT SAS BIOS Configuration Utility appears On some systems however the following message appears next Configuration Utility will load following initialization In this case the utility will load after the system has completed its power on self test Follow the steps below to configure an Integrated Striping IS volume with the LSI MPT SAS BIOS Configuration Utility The procedure assumes that the required controller s and disks are already installed in the computer system You can configure an IM IME volume and an IS volume on the same Intel IT IR RAID Controller 1 On the Adapter List screen of the LSI MPT SAS BIOS Configuration Utility use the arrow keys to select a RAID adapter D Intel IT IR RAID Software User s Guide 23 24 2 Press lt Enter gt to go to the Adapter Properties screen as shown in Figure 9 Figure 9 Adapter Properties Screen 3 On the Adapter Properties screen use the arrow keys to select RAID Properties and press lt Enter gt 4 When you are prompted to select a volume type select Create IS Volume The Create New Array screen shows a list of disks that can be added to a volume 5 Move the cursor to the RAID Disk column To add a disk to the volume change the No to Yes by pressing the lt gt or lt gt key or the space bar As disks are added the Array Size field changes to reflect the si
22. ed Mirroring and Integrated Mirroring Enhanced Features This chapter provides an overview of the Intel IT IR RAID Software s Integrated Mirroring IM and Integrated Mirroring Enhanced IME features Introduction D Intel IT IR RAID Software User s Guide Note The Intel IT IR RAID Software s Integrated Mirroring IM and Integrated Mirroring Enhanced IME features provide data protection for the system boot volume to safeguard critical information such as the operating system on servers and high performance workstations The IM and IME features provide a robust high performance fault tolerant solution for data storage needs at a lower cost The IM and IME features support one or two mirrored volumes per Intel IT IR RAID Controller to provide fault tolerant protection for critical data The two volumes can have up to a total of twelve disk drives plus one or two hot spare disks If a disk in an Integrated Mirroring volume fails the hot swap capability allows you to restore the volume by simply swapping disks The firmware then automatically re mirrors the swapped disk Additionally each Intel IT IR RAID Controller can have one or two global hot spare disks available to automatically replace a failed disk in the IM or IME storage volumes on the controller Hot spares make the IM IME volume even more fault tolerant You can also configure one IM or IME volume and one Integrated Striping IS volume on the same Intel
23. er and moved to another one The Activate Array option allows you to reactivate an inactive array that has been added to a system This option is only available when the selected array is currently inactive To activate a selected array follow these steps 1 Select Activate Array on the Manage Array screen D 16 Intel IT IR RAID Software User s Guide 2 Press lt Y gt to proceed with the activation or press lt N gt to abandon it After a pause the array will be active Note If there is a global hot spare disk on the controller to which you have moved the array the BIOS checks when you activate the array to determine if the hot spare is compatible with the new array An error message appears if the disks in the activated array are larger than the hot spare disk or if the disks in the activated array are not the same type as the hot spare disk SATA versus SAS Deleting an Array Caution If a volume has been deleted it cannot be recovered Before deleting an array be sure to back up all data on the array that you want to keep To delete a selected array follow these steps 1 Select Delete Array on the Manage Array screen 2 Press lt Y gt to delete the array After a pause the array is deleted If there is a remaining array and one or two hot spare disks the BIOS checks the hot spare disks to determine if they are compatible with the remaining array If they are not compatible i e they are too small or the wron
24. g disk type the firmware deletes them as well Note When an IM volume is deleted the data is preserved on the primary disk When an IME volume is deleted the master boot records of all disks are deleted Locating a Drive or Multiple Drives in a Volume You can use the LSI MPT SAS BIOS Configuration Utility to locate and identify a specific physical disk drive by flashing the drive s LED You can also use the utility to flash the LEDs of all the disk drives in a RAID volume There are several ways to do this When you are creating an IM or IME volume and a disk drive is set to Yes as part of the volume the LED on the disk drive is flashing The LED is turned off when you have finished creating the volume e You can locate individual disk drives from the SAS Topology screen To do this move the cursor to the name of the disk in the Device Identifier column and press lt Enter gt The LED on the disk flashes until the next key is pressed e You can locate all the disk drives in a volume by selecting the volume on the SAS Topology screen The LEDs flash on all disk drives in the volume Note The LEDs on the disk drives will flash as described above if the firmware is correctly configured and the drives or the disk enclosure supports disk location Intel ITAR RAID Software User s Guide 17 Selecting a Boot Disk You can select a boot disk in the SAS Topology screen The selected disk is moved to scan ID 0 on the next boot an
25. ly where it left off prior to a power cycle Disk Write Caching The firmware disables disk write caching by default for IM IME volumes This is done to increase data integrity so that the disk write log stored in NVSRAM is always valid If disk write caching were enabled not recommended the disk write log could be invalid NVSRAM Usage Intel IT IR RAID Software User s Guide The IR RAID firmware requires at least a 32 KB NVSRAM in order to perform write journaling Write journaling is used to verify that the disks in the IM IME volume are synchronized with each other Fusion MPT Support The BIOS uses the Fusion MPT interface to communicate to the Intel IT IR RAID Controller and firmware to enable IM and IME volumes This includes reading the Fusion MPT configuration to access the parameters that are used to define behavior between the controller and the devices connected to it The Fusion MPT drivers for all supported operating systems implement the Fusion MPT interface to communicate with the controller and firmware D 10 Intel IT IR RAID Software User s Guide 3 Creating IM and IME Volumes This chapter explains how to create Integrated Mirroring IM and Integrated Mirroring Enhanced IME volumes using the LSI MPT SAS BIOS Configuration Utility IM and IME Configuration Overview You can use the LSI MPT SAS BIOS Configuration Utility to create one or two IM IME volumes on each Intel IT IR RAID Controller with
26. olumes per controller If one volume is already configured and if there are available disk drives there are two ways to add a second volume Option 1 1 In the configuration utility select an adapter from the Adapter List 2 Select the RAID Properties option to display the current volume 3 Press lt C gt to create a new volume 4 Continue with either step 4 in Creating an IM Volume on page 12 or step 4 in Creating an IME Volume on page 13 to create a second volume Option 2 1 On the Adapter List screen use the arrow keys to select an Intel IT IR RAID Controller 2 Press lt Enter gt to go to the Adapter Properties screen shown in Figure 4 3 On the Adapter Properties screen use the arrow keys to select RAID Properties and press lt Enter gt 4 Continue with either step 4 in Creating an IM Volume on page 12 or step 4 in Creating an IME Volume on page 13to create a second volume Managing Hot Spares You can create one or two global hot spare disks to protect the IM or IME volumes on an Intel IT IR RAID controller Usually you create global hot spares at the same time you create the IM IME volume To add global hot spare disks after an IM IME volume has been created follow these steps 1 On the View Array screen select Manage Array 2 Inthe Manage Array screen select Manage Hot Spares as shown in Figure 6 D Intel IT IR RAID Software User s Guide D 3 4 Activate A
27. one or two optional global hot spare disks All disks in an IM IME volume must be connected to the same Intel IT IR RAID Controller Although you can use disks of different size in IM and IME volumes the smallest disk in the volume will determine the logical size of all disks in the volume In other words the excess space of the larger member disk s will not be used For example if you create an IME volume with two 100 GB disks and two 120 GB disks only 100 GB of the larger disks will be used for the volume For more information about Integrated Mirroring volumes see Features on page 6 Creating IM and IME Volumes The LSI MPT SAS BIOS Configuration Utility is part of the Fusion MPT BIOS When the BIOS loads during boot and you see the message about the LSI MPT SAS BIOS Configuration Utility press lt Ctrl gt lt C gt to start the utility The message then changes to Please wait invoking LSI SAS Configuration Utility After a brief pause the main menu appears On some systems however the following message appears Configuration Utility will load following initialization In this case the LSI MPT SAS BIOS Configuration Utility loads after the system has completed a power on self test You can configure one or two IM or IME volumes per Fusion MPT controller You can also configure one IM IME and one Integrated Striping IS volume on the same controller up to a maximum of 12 physical disk drives for the two volumes
28. roller Press lt Enter gt to go to the Adapter Properties screen shown in Figure 9 On the Adapter Properties screen use the arrow keys to select RAID Properties and press lt Enter gt Continue with step 4 in Creating IS Volumes on page 23 to create a second IS volume Intel IT IR RAID Software User s Guide 25 Other Configuration Tasks This section explains how to perform other configuration and maintenance tasks for IS volumes Viewing IS Volume Properties To view the properties of IS volumes follow these steps 1 In the configuration utility select an adapter from the Adapter List 2 Select the RAID Properties option The properties of the current volume are displayed 3 If more than one volume is configured press lt Alt gt lt N gt to view the next array 4 To manage the current array press lt Enter gt when the Manage Array item is selected Activating an Array An array can become inactive if for example it is removed from one controller or computer and moved to another one The Activate Array option allows you to reactivate an inactive array that has been added to a system This option is only available when the selected array is currently inactive To activate an array once it has been selected follow these steps 1 Choose Activate Array on the Manage Array screen 2 Press lt Y gt to proceed with the activation or press lt N gt to abandon it After a pause the array will be ac
29. rray Figure 6 Manage Array Screen Select a disk from the list by pressing the lt gt or lt gt key or the space bar After you select the global hot spare disk press lt C gt An error message appears if the selected disk is not at least as large as the smallest disk used in the IM IME volume s The global hot spare disk must have 512 byte blocks it cannot have removable media and the disk type must be either SATA with extended command set support or SAS with SMART support If SATA disks are used for the IM IME volume s the hot spare disk must also be a SATA disk If SAS disks are used the hot spare disk must also be a SAS disk An error message appears if the selected disk is not the same type as the disks used in the IM IME volumes Optional Select a second hot spare disk Select Save changes then exit this menu to commit the changes The configuration utility pauses while the global hot spares are added To delete a global hot spare follow these steps l 2 Select Manage Hot Spare on the Manage Array screen Select Delete Hot Spare and then press lt C gt If there are two hot spares select one to delete Select Save changes then exit this menu to commit the changes The configuration utility pauses while the global hot spare is removed Intel IT IR RAID Software User s Guide 15 Other Configuration Tasks This section explains how to perform other configuration and maintenance tasks for IM and IME
30. s useful for applications that require the faster performance and increased storage capacity of striping The low cost IS feature has many of the advantages of a more expensive RAID striping solution A single IS logical drive may be configured as the boot disk or as a data disk The IS feature is implemented with controller firmware that supports the Fusion MPT Interface IS provides better performance and more capacity than individual disks without burdening the host CPU The firmware splits host I Os over multiple disks and presents the disks as a single logical drive In general striping is transparent to the BIOS the drivers and the operating system The LSI MPT SAS BIOS Configuration Utility is used to configure IS volumes which can consist of two to ten disks Features Integrated Striping includes the following features e Support for volumes with two to ten disks Support for two IS volumes or one IS volume and one IM IME volume on controller with up to a total of 12 disks Note This option requires IR RAID firmware v1 20 00 or above to be installed Note All physical disks in a volume must be connected to the same SAS controller e Presents a single virtual drive to the OS for each configured volume Support for both SAS and SATA drives although the two types of drives cannot be combined in one volume e Fusion MPT architecture Easy to use LSI MPT SAS BIOS Configuration Utility Error notification
31. scsesecsesseseesesscsesecsesessesstsessestaeeesecees 2 Using this Manual EE 3 Chapter 2 Integrated Mirroring and Integrated Mirroring Enhanced Features 5 e Ve te E 5 FE Je 6 BIE ge le EEE NT FR EA re ee 6 IR RAD FImwar m ueegesmsmnmenenvvenhdeednneieeiedekerssnikienskehhodknete 8 Resynchronization with Concurrent Host I O Operation rerrrnnvrnnnnnnrrrnnnrnnrrrnnnnnnnnnnerenn 8 Mestad SUP EE 8 Hor Swapping EEE EE EEE EE TT 8 SMART SUPDOM sanse etan 9 eise 9 Media Verification aa 9 Disk Write Caching EE 9 NVSRAM YSA EE RE EE EET eee ere Fas 9 PUSION WIPT SPP seede 10 Chapter 3 Creating IM and IME Volumes rrrnnnnnnnnnvvnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnvnnnnnnn 11 IM and IME Configuration Overview EE 11 Creating IM and IME Volumes Lu ummeneesusneikeeubev EE EEEE EEN dE NEES 11 Creating an IM VA Eve 12 Creating an IME Volume E 13 Creating a Second IM or IME Volume EEN 14 Ee tee ee 14 Other Configuration RE 16 Viewing Volume ee 16 Synchronizing EE 16 Activating AN EC EE 16 Deleting an Array eege 17 Locating a Drive or Multiple Drives in a Volume rnrrrrrnnnrnnnnnnnrrrnnnnnnnnrrrrnnnrnnnerrrrrrnnnnn 17 Selecting a Boot D SK EE SEERE aren eee ete 18 Chapter 4 Overview of Integrated Striping rrrnssvvrnnnnnnnnnvvvnnnnnnnnnnnnnvnnnnnnnnnnnnnnnnnn 19 HOC CHO MN E 19 Features eee eee ener eee ee er E T a E E ere 19 AS NOM E 20 D Intel IT IR RAID Software User s Guide jii Integrated Striping Firmware seesaes
32. tive Deleting an Array Caution Once a volume has been deleted it cannot be recovered Before deleting an array be sure to back up all data on the array that you want to keep To delete a selected array follow these steps 1 Select Delete Array on the Manage Array screen 2 Press lt Y gt to delete the array or press lt N gt to abandon the deletion After a pause the firmware deletes the array Note The master boot records of all disks are deleted and data cannot be recovered 26 Intel IT R RAID Software User s Guide Locating a Disk Drive or Multiple Disk Drives in a Volume You can use the LSI MPT SAS BIOS Configuration Utility to locate and identify a specific physical disk drive by flashing the drive s LED You can also use the utility to flash the LEDs of all the disk drives in a RAID volume There are several ways to do this e When you are creating an IS volume and a disk drive is set to Yes as part of the volume the LED on the disk drive is flashing The LED is turned off when you are finished creating the volume e You can locate individual disk drives from the SAS Topology screen To do this move the cursor to the name of the disk in the Device Identifier column and press lt Enter gt The LED on the disk flashes until the next key is pressed e You can locate all the disk drives in a volume by selecting the volume on the SAS Topology screen The LEDs flash on all disk drives in the volume Note The
33. ze of the new volume There are several limitations when creating an IS RAID 0 volume All disks must be either SATA with extended command set support or SAS with SMART support Disks must have 512 byte blocks and must not have removable media There must be at least two and no more than ten drives in a valid IS volume Hot spare drives are not allowed D Intel IT IR RAID Software User s Guide T3808110AS ST3808110AS ST3808110AS ST3808110AS Figure 10 Create New Array Screen 6 When you have added the desired number of disks to the array press lt C gt and then select Save changes Then exit the menu to commit the changes The configuration utility pauses while the array is created Creating a Second IS Volume The Intel IT IR RAID Controllers allow you to configure two IS volumes or an IS volume and an IM IME volume If one volume is already configured and if there are available disk drives there are two ways to add a second volume Option 1 Perform the following steps l In the LSI MPT SAS BIOS Configuration Utility select an adapter from the Adapter List Select the RAID Properties option The current volume will be displayed Press lt C gt to create a new volume Continue with Step 4 of Creating IS Volumes to create a second IS volume Option 2 Perform the following steps l D On the Adapter List screen use the arrow keys to select an Intel IT IR RAID Cont

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