Promise Technology SmartStor NAS Product Manual page 222

SmartStor NAS Product Manual
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.
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RAID Critical icon.
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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.
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