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APPENDIX
For Internal Use Only

A

Virtualization Engine References

This Appendix contains the following Tables:

■TableA-1 “SRN and SNMP Reference”
■TableA-2 “SRN/SNMP Single Point of Failure Table”
■TableA-3 “Port Communication”
■TableA-4 “Service Codes”
TABLEA-1 provides an explanation of Service Request Numbers for the virtualization

engine.

TABLEA-1 SRN and SNMP Reference
SRN Description CorrectiveAction
1xxxx Disk drive Check Condition status. xxxx is
the Unit ErrorCode.
The Unit ErrorCodes are returned by the
drivein Sense Databytes 20-21 in response
to the SCSI Request Sense command.
Iftoo many Check Conditions are returned,
then check the link status.
70000 SAN Configuration has changed.
70001 Rebuild process has started.
70002 Rebuild is completed without error.
70003 Rebuild is aborted with a read error.This
means that the drive copying information
cannot readfrom the primary drive.
If a sparedrive is available, it will be
broughtin and used to replace the failed
drive. If no spareis available, replace the
failed drive with a new drive.
70004 Writeerror is reported by follower.Ifthe
initiator is master,then its follower has
detected a write erroron a member within
a mirrordrive.
If a sparedrive is available, it will be
broughtin and used to replace the failed
drive. If no spareis available, replace the
failed drive with a new drive.