IBM Midrange System DS4000 Series Hardware Manual page 392

Reading profile in a failed disk scenario
Using the profile data, select the Arrays tab to see the information shown in Example 7-5.
Example 7-5 Failed drive protected by hot spare
ARRAYS------------------------------
Number of logical drive groups: 3
Name:
Status:
Capacity
RAID level:
Drive type:
Enclosure loss protection: No
Current owner:
Associated logical drives and free capacity
Logical Drive
Associated drives - present (in piece order)
Enclosure
You can see that the array named Data is a RAID 3 built from the disks in slots 1, 2, and 3 of
enclosure 85. However, the drive in 85,1 seems to be failed and is using a hot spare, as
location 85,4 is sparing for the drive in 85,1.
The status of the array is degraded, so the reconstruction is likely still in progress for the hot
spare drive, but we have to check the logical drives (AIX1and AIX2, in this case) that are part
of this array, as shown in Example 7-6.
Example 7-6 Profile data: Logical drives
STANDARD LOGICAL DRIVES------------------------------
SUMMARY
Number of standard logical drives: 9
See other Logical Drives sub-tabs for premium feature information.
NAME
1
2
3
4
5
AIX1
AIX2
374
IBM Midrange System Storage Hardware Guide
Degraded - partially complete array
930,523 GB
3
Serial ATA (SATA)
Controller in slot B
Capacity
AIX1
Free Capacity 921,523 GB
Slot
85 1
85 2
85 3
85 4 [hot spare drive is sparing for drive at 85, 1]
85 1
STATUS CAPACITY RAID LEVEL ARRAY
Optimal 2,0 GB
Optimal 4,0 GB
Optimal 4,0 GB
Optimal 2,0 GB
Optimal 2,0 GB
Optimal 9,0 GB
Degraded 9,0 GB
Data
9,000 GB
DRIVE TYPE
5 Array1 Fibre
5 Array1 Fibre
5 Array1 Fibre
5 Array1 Fibre
5 Array1 Fibre
3 Data SATA
3 Data SATA