HP Xw9400 HP xw9400 Workstation - Service and Technical Reference Guide - Page 178

Appendix A — SAS devices, Supported SAS RAID configurations, SAS RAID 0 (IS) configuration

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A Appendix A - SAS devices Supported SAS RAID configurations The following RAID configurations are supported on the HP xw9400 Workstation. NOTE: This section does not apply to configuring RAID in the Linux environment. For RAID in the Linux environment, configure SW RAID configurations as provided by Red Hat Enterprise Linux. ● Up to 5 internal or 8 external SAS hard disk drives/JBOD. ● External connections require optional internal-to-external cable ● SAS drives require SATA to SAS data and power converter ● LSI MyStorage Utility for Windows ● RAID 0 (IS) - Striped disk array ◦ Two drives minimum ◦ Improved I/O performance ◦ No fault tolerance ● RAID 1 (IM) - Mirrored disk array ◦ Two drives ◦ Improved read performance ◦ 100% redundancy ◦ Can recover from single drive failure ● RAID 1E (IME) ◦ Three drives minimum ◦ Can be an odd number of drives ◦ Can always recover from a single drive failure, and in some cases, recover from two drive failures SAS RAID 0 (IS) configuration Follow the steps below to configure an Integrated Striped (IS) volume with the BIOS-based configuration utility. The configuration procedure assumes that the system already has the required disks attached to the SAS/SATA ports. 1. At the BIOS splash screen, press any key to view option ROM messages. 2. Press Ctrl-C at the prompt Press Ctrl-C to Start LSI Logic Configuration Utility to start the utility. 3. On the Adapter List screen of the LSI Logic Config Utility, use the arrow keys to highlight an adapter (SAS1068e), then press Enter. 168 Appendix A Appendix A - SAS devices ENWW

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A
Appendix A — SAS devices
Supported SAS RAID configurations
The following RAID configurations are supported on the HP xw9400 Workstation.
NOTE:
This section does not apply to configuring RAID in the Linux environment. For RAID in the
Linux environment, configure SW RAID configurations as provided by Red Hat Enterprise Linux.
●
Up to 5 internal or 8 external SAS hard disk drives/JBOD.
●
External connections require optional internal-to-external cable
●
SAS drives require SATA to SAS data and power converter
●
LSI MyStorage Utility for Windows
●
RAID 0 (IS) – Striped disk array
◦
Two drives minimum
◦
Improved I/O performance
◦
No fault tolerance
●
RAID 1 (IM) — Mirrored disk array
◦
Two drives
◦
Improved read performance
◦
100% redundancy
◦
Can recover from single drive failure
●
RAID 1E (IME)
◦
Three drives minimum
◦
Can be an odd number of drives
◦
Can always recover from a single drive failure, and in some cases, recover from two drive
failures
SAS RAID 0 (IS) configuration
Follow the steps below to configure an Integrated Striped (IS) volume with the BIOS-based configuration
utility. The configuration procedure assumes that the system already has the required disks attached to
the SAS/SATA ports.
1.
At the BIOS splash screen, press any key to view option ROM messages.
2.
Press
Ctrl-C
at the prompt
Press Ctrl-C to Start LSI Logic Configuration Utility
to start the utility.
3.
On the Adapter List screen of the LSI Logic Config Utility, use the arrow keys to highlight an adapter
(SAS1068e), then press
Enter
.
168
Appendix A
Appendix A — SAS devices
ENWW