IBM System Storage DS4000, Hardware Manual

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Chapter 7. Advanced maintenance, troubleshooting, and diagnostics
409
Storage Subsystem Profile
The Storage Subsystem Profile (Example 7-8) includes a section on drive channels. This
provides a useful summary of status together with cumulative errors accumulated on each
drive channel since the last controller reset (or since the counters were cleared).
Example 7-8 Storage Subsystem Profile
DRIVE CHANNEL 1
Port: 8, 7, ESM A 1B
Status: Degraded
Max. Rate: 4 Gbps
Current Rate: 4 Gbps
Rate Control: Auto
Controller A link status: Up
Controller B link status: Up
Trunking active: No
DRIVE COUNTS
Total # of attached drives: 16
Connected to: Controller A
Attached drives: 16
Drive enclosure: 0 (16 drives)
CUMULATIVE ERROR COUNTS
Controller A
Baseline time set: 23/09/09 15:38:31
Sample period (hh:mm:ss): 00:11:07
Controller detected errors: 0
Drive detected errors: 23160
Timeout errors: 0
Link down errors: N/A
Total I/O count: 6512
Controller B
Baseline time set: 10/09/09 12:12:52
Sample period (days, hh:mm:ss): 13 days, 03:37:27
Controller detected errors: 2
Drive detected errors: 1026598
Timeout errors: 0
Link down errors: N/A
Total I/O count: 65525656