Configure Raid With Raidxpert2 Configuration Utility - Lenovo ThinkStation P620 Hardware Maintenance Manual

– Provide the highest performance but no data redundancy. Data in the array is striped (distributed)
across several disks.
– 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.
• RAIDABLE (also known as RAID Ready):
– Allow a RAIDABLE disk to be transformed later to RAID 0 or RAID 1.
– Support 1 disk.

Configure RAID with RAIDXpert2 Configuration Utility

If your computer comes with the RAIDXpert2 Configuration Utility , you can follow the sections below to
configure RAID.
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.
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P620 Hardware Maintenance Manual