Справочник Пользователя для ZyXEL Communications NSA-2401

Chapter 9 Protect Screens

NSA-2401 User’s Guide

See 

 for more information on RAID.

See 

 for backup and snapshot tutorials.

Use the Protect > Backup menus to create data backups to another volume, an external USB 
disk drive, or a computer or another NSA over the network. 

The NSA deletes old backups according to the backup job’s purge policy (see 

) before creating a new backup. If you have a backup scheduled to begin at midnight, 

then at that time, the NSA deletes files according to the purge policy setting before doing the 
back up. If space on the backup NSA is a concern, then configure the NSA to delete old 
backups. 

After purging old backups, the NSA does not check if enough space is available before backup 
commences. The NSA starts transferring files and if not enough space is available, it issues a 
log or alert to tell you that the backup failed (due to lack of space) and deletes any files already 
transferred. 

A full backup copies all files from your NSA to the backup device. It may take some time 
depending on how many files you have to back up.

See also this related information:

•

 for a comparison of backups and snapshots.

•

 for a comparison of backups and RAID.

•

 for an overview of protection methods available on the NSA.

"

To best protect data, back up data to another NSA or computer or an external 
hard drive, and store in an off site location.

Click the Backup link in the Navigation panel to access the Protect > Backup summary 
screen. This screen shows a list of all backup jobs created and scheduled. You can also edit or 
delete an existing backups or create a new one from here. Click a column’s heading cell to sort 
the table entries by that column’s criteria. Click the heading cell again to reverse the sort order.