ZyXEL NSA-220 Plus User Guide - Page 112
The Storage Screen, 5.2.1 Disk Replacement Restrictions
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Chapter 5 Storage 5.2 The Storage Screen The Storage screen allows you to create and edit volumes in the NSA. 5.2.1 Disk Replacement Restrictions See the Quick Start Guide for information on replacing disks in the NSA. When replacing a disk in a degraded or down RAID volume, the new disk must be at least the same size or bigger than the other disks that are already in the RAID volume, so as all data in the volume can be restored. For example, if you have RAID with 250 GB disks, you must put in a 250 GB or bigger disk as a replacement in order to restore all original data in that volume. If you put a bigger disk, the extra space on the disk will not be used. Note: The NSA automatically repairs a degraded RAID if you insert an empty disk without an existing file system. Otherwise, when you replace a disk you must go to the Storage > Internal Volume > RAID screen, select the degraded array, and click Repair. Resynchronizing or Recovering a RAID 1 Volume Resynchronizing or recovering a RAID 1 volume that was down is done block-byblock, so the time it takes depends more on the size of your hard drive(s) than the amount of data you have on them. Note: Do not restart the NSA while the NSA is resynchronizing or recovering a volume as this will cause the synchronization to begin again after the NSA fully reboots. Note: You can access data on a RAID volume while it is resychronizing or recovering, but it is not recommended. 112 NSA-220 Plus User's Guide