Lock online storage for snapshot
This is a feature that allows DS-System to lock its online storage to permit a third-party application to take a snapshot of the online storage. This option only appears if you have configured it in the DS-System Advanced Configuration screen (See "DS-System Advanced Configuration".)
1. Setup Menu > Advanced Configuration
2. Setup Menu > System Activities. The System Activities Administration screen appears.
3. Beside "Lock online storage for snapshot", click Lock.
4. When the icon changes, the online storage is locked (this may take a few seconds on N+1 DS-Systems as each node is required to respond).
- The online storage is locked (all attempts to change the online storage will be paused).
- You can run the third-party snapshot application.
5. When the snapshot if finished, click Unlock.
This feature is designed to interact with a third-party application, allowing the snapshot to run unattended, on schedule.
Instead of manually clicking / unclicking the Lock buttons (as described above), the DS-System database (database name = "dssystem") provides a table called "storage_lock" that will respond to third-party manipulation.
The "storage_lock" table has two columns:
1. Make sure the third-party application performs the following (in order):
- WARNING: Do not alter any other table in the DS-System database.
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