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NSA-2400 User’s Guide

87 Chapter 6 Storage

Note: Although the NSA can read previously-stored files and folders using double-

byte characters (such as Chinese), it does not allow you to write new ones to

an external drive using double-byte characters.

6.5.3 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.

AFTER replacing the disk, go to the Storage>Disk page and click the Repair icon next to the

new disk.

Note: The NSA does not repair a disk automatically when you replace it; you must

click Repair.

6.5.4 Disk Replacement and Volume Labels

When you create a volume, the NSA writes the volume label to the disk. It is recommended

that you first delete a volume using the NSA web configurator before removing its disk(s).

Deleting a volume removes volume label information on its disk(s). If you remove a disk(s)

without deleting its volume and you later put the disk(s) back in a different volume, problems

may occur.

For example, suppose you have two disks, Disk A and Disk B and you create two SINGLE

volumes, volume1 (with Disk A) and volume2 (Disk B). Later you remove Disk A and replace

it with another disk, Disk C and you re-create volume1. (You did not delete volume1 when

you removed Disk A.) Later you replace Disk B with Disk A. Disk A still retains the volume1

label, so at this point there is a volume conflict since both Disk A and Disk C have the

volume1label but the NSA will only show ONE of the two volumes. Follow this procedure if a

volume conflict occurs:

6.5.4.1 Volume Conflict Procedure

1 Shut down the NSA.

2 Remove the disk(s) in one conflicting volume. The other disk(s) that are in the other

conflicting volume must remain connected.

3 Restart the NSA.

4 Open your browser and connect to the web configurator; verify that the volume is

properly recognized.

5 Save a backup of this volume.

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