ZyXEL Communications NSA-2401 User Manual
Chapter 6 Storage Screens
NSA-2401 User’s Guide
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• Down when an array is down and cannot be fixed. The array cannot be used and the data is
lost. Replace the faulty disk(s) and recreate the array, volumes, and sharing configuration.
If an array is down, users can no longer transfer files to/from the array’s shares. If an array is
degraded, then file transfer to/from the shares in the degraded array will be slower.
degraded, then file transfer to/from the shares in the degraded array will be slower.
"
Although there is no explicit message from CIFS that tells users an array is
degraded or down, you can have the NSA send the administrator an email
alert.
degraded or down, you can have the NSA send the administrator an email
alert.
Resynchronizing and Reshaping
The NSA resynchronizes a RAID 1, RAID 5, or RAID 10 array to repair it. When you add a
disk to a three-disk RAID 5 array, the NSA reshapes it into a four-disk RAID 5 array.
Resynchronizing or reshaping an array is done block-by-block, so the time it takes depends on
the size of your hard drive(s), not the amount of data you have on them.
disk to a three-disk RAID 5 array, the NSA reshapes it into a four-disk RAID 5 array.
Resynchronizing or reshaping an array is done block-by-block, so the time it takes depends on
the size of your hard drive(s), not the amount of data you have on them.
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Do not restart the NSA while the NSA is re-sychronizing or reshaping an array
as this will cause the process to start over from the beginning again after the
NSA fully reboots.
as this will cause the process to start over from the beginning again after the
NSA fully reboots.
You can access data on a RAID array while the NSA is re-sychronizing or reshaping it, but it
is not recommended. The performance will be slower and your data is at risk until the
resychronization or reshaping is complete.
is not recommended. The performance will be slower and your data is at risk until the
resychronization or reshaping is complete.
6.5 RAID Screen
Click Storage > Internal Storage > RAID to display the RAID array summary screen as
shown. Use this screen to manage the NSA RAID (and JBOD) arrays.
shown. Use this screen to manage the NSA RAID (and JBOD) arrays.
Figure 128 Storage > Internal Storage > RAID