HP StorageWorks 3000 RAID Array - Manual (Page 55)

RAID Array 3000 Controller 2-13
Compaq Confidential – Need to Know Required
Writer: Bob Young Project: RAID Array 3000 Controller Shelf Hardware User’s Guide Comments:
Part Number: EK-SMCPQ-UG. D01 File Name: c-ch2 RAID Array 3000 Controller.doc Last Saved On: 12/4/00 1:08 PM
When the controller creates a RAID 0+1 set, it first sorts the drives by channel
number and SCSI ID. Then it stripes the data across every other drive and
forms a mirrored pair with the first two drives, another mirrored pair with the
second two drives, and so on. Table 2– 4 lists how the controller uses the drives
in a RAID 0+1 set.
Table 2-4
RAID 0+1 Example
Drives Selected Function
Channel 1, ID 0 First member of stripe set
Channel 1, ID 1 Mirror of channel 1, ID 0
Channel 1, ID 2 Second member of stripe set
Channel 2, ID 0 Mirror of channel 1, ID 2
Channel 2, ID 1 Third member of stripe set
Channel 2, ID 2 Mirror of channel 2, ID 1