Adaptec Snap Server 700i Series, User Manual

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Recovering from a Disk Drive Failure
Chapter 12 Solving Problems 145
4
Release the latch on the new drive and open its handle. If the handle is closed,
you cannot insert the disk drive completely into the bay.
5
Insert the new disk drive, making sure you push it forward until it is firmly
seated and the handle begins to swing closed. Then close the handle until it clicks
into place to completely seat the drive to its connection.
Note
Be sure to push firmly on the drive to securely seat it in the drive bay before
you close the handle. You should hear a click to indicate the drive has been
inserted as far as it can go.
6
Replace the front bezel (700i Series only).
Recovering from a Disk Drive Failure
When a disk drive fails for any reason, it is represented in Adaptec
Storage Manager with a red X, as shown at right.
This section explains how to recover when a disk drive fails:
• If the pool was protected by a hot spare (see the next section).
• If the pool was
not protected by a hot spare (see page 145).
• If there is a disk drive failure in more than one pool simultaneously (see page 146).
• If it is a RAID 0 pool (see page 146).
• If multiple disk drives fail within the same pool (see page 146).
Failed Disk Drive Protected by a Hot Spare
When a pool is protected by a hot spare, if a disk drive in that pool fails the hot
spare is automatically incorporated into the pool and takes over for the failed drive.
For instance, when a disk drive fails in a RAID 5 pool, the pool is automatically
rebuilt (its data is reconstructed) using the hot spare in place of the failed drive. You
can’t access the pool until the rebuilding is complete.
Note
In Adaptec Storage Manager, the color of the hot spare changes from light-
blue to dark-blue, showing that it is now part of a pool.
To recover from the failure:
1
Remove and replace the failed disk drive (following the instructions in “Hot
Swapping Disk Drives” on page 144).
2
Designate a new hot spare to protect the pools on that iSCSI Storage Appliance.