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SmartStor NAS Product Manual
218
2. Click
the
Administration
topic and choose the
RAID & File System
icon to
expand the Tree.
3. In the Tree, click the
RAID Management
icon.
The status is displayed in the
RAID Status
tab.
Figure 2. WebPASM reports a Critical RAID Volume
SmartStor Responds to a Critical RAID Volume
How the SmartStor responds to a Critical RAID Volume depends on the RAID
level of your Volume and whether you have a spare drive available:
․
For a RAID 1 Volume or a three-drive RAID 5 Volume, if a spare drive is
available, the RAID Volume begins rebuilding itself automatically.
․
For RAID 1, 5, and 10 Volumes, when no spare drive is available, you must
replace the failed disk drive. The RAID Volume will begin rebuilding itself
when you install the new disk drive. See “Replacing a Failed Disk Drive” on
page 217.
․
RAID 0 Volumes go
offline
after a disk drive failure. A RAID 0 Volume cannot
be rebuilt. All data on the Volume is lost.
Additional Details about Rebuilds
․
The Rebuild takes several minutes, depending on the size of your disk
drives.
․
During a rebuild, you can access your folders on the SmartStor.
․
RAID Critical icon.
․
When you replace the failed disk drive with a new disk drive, the new disk
drive becomes a Free Drive.
Responding to an Invalid RAID Volume
The SmartStor considers a RAID Volume
invalid
when the RAID Volume was
created by a different SmartStor. However, the RAID Volume itself remains
functional and the data on it is safe.
This condition could happen when you:
․
Move the disk drives from one SmartStor to a different SmartStor.