IBM TotalStorage DS300 Best Practices Manual page 142

base arrays. For logical drives in RAID 5, RAID 10 and RAID 50 arrays the
stripe size can be modified. different strip sizes are available. 256 is the
default value. Smallest stripe size is 16K and largest stripe size is 1MB.
Define the size of the logical drive and the preferred controller.
Enter the logical drive name COLORADO-DB and a size of 50GB. Change
the owner of the logical drive to controller B. Click Next.
logical create
COLORADO-DB
S-array-2 50G
restricted
Figure 4-73 Logical drive COLORADO-DB
19.Select the logical drive COLORADO-DB from the enclosure. Change the
Authentication type from None to CHAP for this logical drive. See Figure 4-74
on page 125.
Note: If a CHAP name and secret is specified during the configuration of
the iSCSI host bus adapter in the host adapter settings, then CHAP needs
to be selected for the boot logical drive and a user with the same name and
the secret must be specified. See Figure 7-15 on page 236.
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IBM TotalStorage DS300 and DS400 Best Practices Guide