5. Troubleshooting
Express5800/R120f-1E Maintenance Guide
35
Chapter 1 Maintenance
[?]
Unable to automatically rebuild the RAID array
Did you wait for sufficient time until the hard disk drive was replaced?
→
Follow the steps below to use the auto-rebuilding feature.
(1) Remove a failure HDD.
(2) Wait for at least 90 seconds.
(3) Install a new HDD.
[?]
The hard disk drive failed
→
Contact your sales representative.
[?]
Unable to perform Consistency Check
Is the logical drive
Critical
or
Degraded
?
→
Replace the failed hard disk drive with new one, and then perform
Rebuild
.
Is the logical drive RAID0?
→
RAID0 has no data redundancy and Consistency Check is disabled in the RAID0 array.
[?]
Cannot set Write-Back for Cache Mode
→
On
Virtual Disks
–
Properties
–
Policies
screen of Web BIOS,
Default Write
shows set value of cache
mode of RAID controller, and
Current Write
shows the current write policy. Accordingly, if battery is not
connected, failed, or insufficiently charged, indication of
Current Write
changes to
Write Through
even
if you specify
Write Back with BBU
for
Default Write
.
Refer to Universal RAID Utility User's Guide for details of cache mode.
Indication of
Reason for Diff in Write
Action
BBU not installed
Displayed when battery is disconnected.
(1) Check if battery control cable (cable used to connect RAID controller with
battery) is properly connected.
→
Connect cable properly.
(2) Is it displayed immediately after the battery was connected?
→
The battery may not be found if it is insufficiently charged. If the battery
is not found even after 24 hours have elapsed, restart the server.
BBU is failed
Displayed when battery is failed.
Contact your sales representative.
BBU is discharged
Displayed when battery voltage is low.
Check the cache mode (current value) about 12 hours later.
BBU in re-learn cycle
Displayed when battery is being refreshed.
Check cache mode (current value) about 12 hours later.
Reconstruction
Displayed when battery is being reconstructed.
Check cache mode (current value) after reconstruction completes.
If the battery is not found in spite of actions taken, the battery may be faulty.
Consult with your sales representative.