HI,
I had a question on incremental backup.
We had an incremental backup every weekend. We did full backup every
other week. That is one week incremental + full , the other week is
incremental only. My question is for the first weekend incremental
backup, it took for example 1h, but the second weekend incremental
took almost 3 hours. It seems always this way, so I suppose it is not
related to the data change. And we almost had some amount data change
every week. I had no idea why the incremental backup took so much time
for the second weekend.
Just clarify that I did the incremental backup, not incremental delta
backup.
Any suggestion is very appreciated. 1 2233
Incremental backup has to scan the header of every page to see if the
page has changed. Incremental backup is also not sensitive to LOBs -
they all get backed up whether they change or not. Your page size is
somewhere beteen 4K and 32K, so based on database size, you can
calculate how many pages have to be scanned.
jane wrote: HI,
I had a question on incremental backup.
We had an incremental backup every weekend. We did full backup every other week. That is one week incremental + full , the other week is incremental only. My question is for the first weekend incremental backup, it took for example 1h, but the second weekend incremental took almost 3 hours. It seems always this way, so I suppose it is not related to the data change. And we almost had some amount data change every week. I had no idea why the incremental backup took so much time for the second weekend.
Just clarify that I did the incremental backup, not incremental delta backup.
Any suggestion is very appreciated. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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last post by:
Hi,
I try to perform an incremental backup of an entire database.
My problem: the option's for incremental backup are disabled.
OS: W2003Srv
UDB: 8.1
Any idea? Are there any parameters, which I have to set first?
Thanks in advance,
Peter
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UDB v8 fp 6a on AIX 5.1.0.0
Below is a manual incremental recover from compressed backup datasets.
With external compress backup datasets, can it be coded to do an
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# INCREMENTAL BACKUP
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