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– Support 2-8 disks.
– RAID 0 arrays are useful for holding information, such as the operating system paging file, where
performance is extremely important but redundancy is not.
• RAID 1: mirrored disk array
– Mirror data on a partition of one disk to another.
– Support 2 disks.
– RAID 1 arrays are useful when there are only two disks available and data integrity is more important
than storage capacity.
• RAID 5: block-level striped disk array with distributed parity
– Stripe data as well as parity, across all disks in the array.
– Support 3-8 disks.
– Offer exceptional read performance and redundancy.
• RAID 10: striped and mirrored disk array (a combination of RAID 0 and RAID 1)
– Combine mirrors and stripe sets. RAID 10 allows multiple disk failures, up to 1 failure in each mirror that
has been striped.
– Support 4, 6, or 8 disks.
– Offer better performance than a simple mirror because of the extra disks. Require twice the disk space
of RAID 1 to offer redundancy.
• Volume (JBOD):
– RAIDXpert2 Configuration Utility treats one or more disks or the unused space on a disk as a single
array.
– Support 1-8 disks.
– Provide the ability to link-together storage from one or several disks, regardless of the size of the space
on those disks. It is useful in scavenging space on disks unused by other disks in the array. It does not
provide performance benefits or data redundancy. Disk failure will result in data loss.
Initialize disks
New disks and legacy disks must be initialized before they can be used to create an AMD-RAID array.
Initialization writes AMD-RAID configuration information (metadata) to a disk.
CAUTION:
• If a disk is part of an AMD-RAID array, the disk cannot be selected for initialization. To initialize the
disk anyway, delete the AMD-RAID array. Data on the disk is deleted during initialization so ensure
the correct disks are chosen to initialize.
• A legacy disk can contain valid data. When a legacy array is deleted, all data on the disk is lost.
1. Enter the RAIDXpert2 Configuration Utility menu. Then, use the arrow keys to select Physical Disk
Management and press Enter.
2. Use the arrow keys to select Select Physical Disk Operations and press Enter.
3. Use the arrow keys to select Initialize Disk and press Enter.
4. Select the disk(s) to initialize:
a. Use the arrow keys to select a disk and press the Space Bar or Enter. Multiple disks can be selected
using this method.
b. Use the arrow keys to select OK and press Enter.
c. Review the warning message. If you want to proceed, use the arrow keys to select YES and press
Enter.
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ThinkStation P8 Hardware Maintenance Manual
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