2: Operation Procedures
1 volume is active, 2 physical disks are active
Volume 0 | is Bus 0 Target 0, Type IM (Integrated Mirroring) | ||||
Volume | State: optimal, | enabled |
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Volume | Settings: write | caching disabled, auto configure | |||
Volume | draws from Hot | Spare Pools: | 0 | ||
Volume | Size 139898 MB, Stripe Size 0 KB, 2 Members | ||||
Primary is PhysDisk 1 | (Bus 0 | Target | 56) | ||
Secondary is PhysDisk | 0 | (Bus | 0 Target 1) | ||
For information on the two RAID 1 disks, use the lsscsi command as shown in the following example:
# lsscsi
[1:0:0:0] | disk | SGI | ST3146854SS | X422 | - | /dev/sg2 |
[1:0:1:0] | disk | SGI | ST3146854SS | X422 | - | /dev/sg3 |
[1:1:0:0] | disk | LSILOGIC | Logical Volume | 3000 | /dev/sdc | /dev/sg4 |
This is an example of what you'll see on SLES10 or RHEL5 Linux operating systems. Disk [1:0:0:0] and [1:0:1:0] are the individual drives in the RAID 1, but you cannot access them through the disk driver. You access [1:1:0:0], which is /dev/sdc in this case. Caution must be exercised when entering Linux SCSI generic (sg) commands via the sg devices.
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