| BCV Sync Split [message #132942] |
Tue, 16 August 2005 23:17  |
vjeedigunta
Messages: 201
Registered: March 2005
Location: Hyderabad
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Senior Member |
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Can someone provide me a doc on BCV Sync split process... ?
Thanks in advance
-Sai Jeedigunta.
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| Re: BCV Sync Split [message #133819 is a reply to message #132942] |
Mon, 22 August 2005 05:51  |
Frank Naude
Messages: 4590
Registered: April 1998
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Senior Member |
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Hi,
I don't have any document, but in concept your data is stored on three mirrored disks. The 3rd disk mirror can be split into a separate copy of the database (/tablespaces). When done, this split mirror can be added to the 3-disk mirroring scheme again (sync).
The sequence of events for taking an on-line database backup is:
1. Put tablespaces in BEGIN BACKUP mode
2. Split the mirror
3. Backup the split mirror (copy of the database)
4. Put tablespaces in END BACKUP mode
5. Resync the split mirror
The exact commands for splitting and sunc'ing mirrors depend on the vendor's implementation.
Best regards.
Frank
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