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Changing the Maximum Number of Snapshots
During scheduled or manual data replication, the ETERNUS CS800 receives a snapshot
from the source system. A snapshot contains all of the data necessary to fully recover or
failback a NAS share or VTL partition to the point in time when the snapshot was saved.
The ETERNUS CS800 can retain up to 32 snapshots for each replicated share or partition.
Once the maximum number of snapshots have been saved, the oldest snapshot is deleted
to make room for each new snapshot that is received.
To configure the maximum number of received snapshots:
● Under Source Systems, in the Maximum Snapshots drop-down box, select the
number of snapshots to retain for each replicated share or partition.
● The default value is 10. The maximum value is 32.
OST
The OST page allows you to configure the ETERNUS CS800 to present its storage capacity
as storage servers using OpenStorage (OST) technology. You can also add one or more
Logical Storage Units (LSUs) to a storage server. Storage servers and LSUs are compatible
with backup applications that support OST, such as Symantec NetBackup and Symantec
Backup Exec. In addition, OST data can be duplicated (replicated) between ETERNUS
CS800 systems using NetBackup (see "Replicating OST Data" on page 242).
To authenticate OST devices on a media server, you must create OST user credentials.
After you create the OST user credentials, enter them in the backup application to authen-
ticate OST devices on the media server.
To access the OST page, click the Configuration menu, and then click the OST tab.
The OST page contains the following tabs:
● "Storage Servers"
● "LSU"
● "Manage Users"
● "Manage Remote Users"
● "Target IP Mapping"
● "Accent"
● "OST Client Plug-In"
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