IBM ServeRAID, Справочник пользователя

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6. Click ( Add selected drives ) to add the drives to an array. You can
click ( Add all drives ) to move all ready drives to an array.
Notes:
a. Unless you define a drive as a hot-spare drive, you must use all the ready
drives when creating your arrays (that is, all ready drives in the tree must
be online).
b. Hot-spare drives are not shared between controllers in a cluster pairing. If
you want hot-spare protection, each ServeRAID controller must have a
hot-spare drive defined.
c. You must connect hot-spare drives only to shared channels. Both servers
must be able to access their uniquely-defined hot-spare drives in case a
failover occurs
after a hot-spare drive replaces a failed shared drive.
d. You must create at least one logical drive to store the quorum resource
information. This logical drive (the quorum drive) must be assigned RAID
level-1.
e. For improved reliability, do not create arrays that span channels.
7. After you select the ready drives for your arrays, click Next . The “Create
logical drives” window opens.
8. Click the appropriate Array tab.
9. Select a RAID level from the drop-down list. (For more information, see
“Supported RAID levels” on page 22.)
Notes:
a. If you have four or more ready drives in an array, the recommended RAID
level is RAID level-5E.
Figure 37. “Create logical drives” window
Chapter 13. Configuring ServeRAID controllers for clustering
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