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Storage Concepts and Technologies
Remote Backup
The remote backup options include:
• Remote CIFS Backup to a WAN accessed NSS (Figure 17)
• Remote CIFS Backup to a third party WAN Storage Service via a WAN connection
(Figure 18)
Data
Center
NSS6xxx/4xxx
Source:
Shares to be
backed up from
Mirror A (full or
incremental)
Backup:
TAR and
Compress (GZIP)
Shares
Destination:
and
which to store
backup file
Server Name
Share in
NSS6xxx/4xxx
Data
Center
NSS6xxx/4xxx
Source:
Shares to be
backed up from
Mirror A (full or
incremental)
Backup:
TAR and
Compress (GZIP)
Shares
Destination:
and
which to store
backup file
Destination:
and
which to store
backup file
Server Name
Share in
Server Name
Share in
NSS6xxx/4xxx
Figure 17: Remote CIFS Backup - WAN accessed NSS
The process for backup to a remote location is fundamentally the same as backup to another
NSS device within the CPE infrastructure (illustrated in Figure 16). The target can be any
remote storage target such as a NSS device located in a remote data center (e.g. a remote NSS
located at the corporate headquarters in a solution for backups of NSS located in satellite
offices).
The configuration setup is the same. The administrator uses the ‘backup’ utility in the source
device’s GUI menu to select the specific shares for which backup is required, the frequency
of the backup and the target CIFS share where the backup file is to be written. Again, the
target includes a Server name (and user ID and password). When the system clock reaches
the configured backup time, the system will select those shares, concatenate them into a Tape
Archive formatted file and compress that file using GZIP. The compressed file is then
written to the target device share over the network.
Data
Center
NSS6xxx/4xxx
Source:
Shares to be
backed up from
Mirror A
Backup:
TAR and
Compress (GZIP)
Shares
Destination:
and
which to store
backup file
Server Name
Share in
Data
Center
NSS6xxx/4xxxNSS6xxx/4xxx
Source:
Shares to be
backed up from
Mirror A
Backup:
TAR and
Compress (GZIP)
Shares
Destination:
and
which to store
backup file
Destination:
and
which to store
backup file
Server Name
Share in
Server Name
Share in
Figure 18: Remote CIFS Backup - WAN Storage Service
Remote CISF backup to a third party WAN storage service is another option that can provide
a high value, low cost backup (especially for lots of data). CISF is used for the remote
backup. The advantage is that these managed backup services are typically easy and cheap to
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