NETGEAR READYNAS 2120, READYNAS 3220, READYNAS 4220 - page 36

Disks
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NETGEAR ReadyNAS OS 6 Rack-Mount Storage Systems
6. Slide the disk tray back into the drive bay of the system.
7. Press the disk tray handle until it latches closed.
The disk tray is secured in the drive bay.
If the volume that contained the failed disk uses a protected RAID configuration, the
system automatically resynchronizes the volume using the new disk. Resynchronization
might take several hours, depending on the disk size. You can continue to use your
storage system, although access is slower until the volume resynchronization finishes.
For more information about RAID configurations, see the ReadyNAS OS 6 Software
Manual, which is available at http://support.netgear.com/product/ReadyNAS-OS6.
To replace a 2.5-inch hard disk drive (HDD) or 2.5-inch solid-state drive (SSD):
1. Press the disk tray release latch.
The disk tray handle pops out.