User guide

6–2 Troubleshooting
Hitachi Unified Storage VM Block Module Hardware User Guide
Getting help
If you have difficulty with any of the procedures included in this chapter, or
if a procedure does not provide the answer or results you expect, contact
Hitachi Data Systems support. See Getting help on page 3-xi in the preface
of this manual.
Solving problems
The HUS VM storage system storage system is highly reliable and is not
expected to fail in any way that would prevent access to user data. The
READY LED on the control panel must be ON when the storage system is
operating online.
The following table lists possible error conditions and provides
recommended actions to resolve each condition. If you are unable to resolve
an error condition, contact your Hitachi Data Systems representative, or
contact Hitachi Data Systems Technical Support for assistance.
Table 6-1: Troubleshooting
Service information messages
The HUS VM generates Service information messages (SIMs) to identify
normal operations. For example, TrueCopy pair status change) as well as
service requirements and errors or failures. For assistance with SIMs, call
the support center.
SIMs can be generated by the host I/O modules and back-end I/O modules
and by the SVP. All SIMs generated by the HUS VM are stored on the SVP
for use by Hitachi Data Systems personnel, displayed by the Storage
Navigator software, and reported over SNMP to the open-system host. The
Error Condition Recommended Action
Error message
displayed.
Determine the type of error (refer to the SIM codes section. If
possible, remove the cause of the error. If you cannot correct the
error condition, call the support center for assistance.
General power
failure
Turn off all PDU switches and breakers. After the facility power
comes back on steady, turn them back on and power the system
up. See Chapter 4 for instructions. If needed, call Hitachi Data
Systems support for assistance.
Fence message is
displayed on the
console.
Determine if there is a failed storage path. If so, toggle the
RESTART switch, and retry the operation. If the fence message
is displayed again, call the support center for assistance.
READY LED does not
go on, or there is no
power supplied.
Call the support center for assistance.WARNING: Do not open
the HUS VM control frame/controller or touch any of the controls.
ALARM LED is on. If there is a temperature problem in the area, power down the
storage system, lower the room temperature to the specified
operating range, and power on the storage system. Call the
support center if needed for assistance with power off/on
operations. If the area temperature is not the cause of the alarm,
call the support center for assistance.