Troubleshooting Abnormal RAID Operation
Troubleshooting Abnormal RAID Operation of Your NAS
Cisco Small Business NSS 322, NSS 324, and NSS 326 Smart Storage Administration Guide 184
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Troubleshooting A bnormal RAID Opera tion of Your NAS
To troubleshoot abnormal RAID operation of your NAS, follow these steps:
STEP 1
Chec k wheth er the R AID rebuilding ha s failed.
When the RAID rebuilding fails:
• The Status LED of the NAS blinks red.
• In the
Disk Management > Volume M anagement
window of the web-based
con f i g u r at i o n ut ili ty o f t h e NAS, the s t a t u s o f t h e disk volume co n f i g u ra t i o n i s
“In degraded mode.”
STEP 2
Determine which hard drives caused the RAID rebuilding failure.
In the web-based configuration utility of your NAS, open the
System
Adm in ist ration > Sy stem Lo gs
window and search for error messages similar to
the following sample message:
Error oc curre d w hi le ac ces sin g Dri ve 2.
Drive 2 has b een r emo ve d.
This message indicates that the hard drive in slot 2 has failed.
STEP 3
Replace the failed drives with new drive s .
After inser ting the new ha rd driv es , the RAID rebuilding should start .
STEP 4
If the rebuilding succeeds, the NAS will return to normal operation. Skip the
remaining steps.
If the rebuilding fails again due to a read/write error, continue the troubleshooting.
STEP 5
Determine which hard drives caused the error.
• If the error is caused by one of the new drive s , go ba ck to
STEP 3
.
• If the error is caused by an old drive, go to
STEP 4
.
STEP 6
If the RAID configuration is RAID 1, do one of the following:
Reinstall and set up the NA S:
a. If you haven’t done so already, back up the drive data to another storage
device.
b. Reinstall and set up the NAS.
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