I have a customer complaining that backup retention periods for one particular client are not behaving as they should. He says that AFT backups to disk have a full backup retention policy of three months, and an incremental policy of one month. However when he checks the volume the incremental backups are being kept longer than one month.
I thought that this would be correct and that backups on one volume would be kept for the longest retention period applied to that volume, however he says that this isn't the case for all their other backups, and that because it's AFT to disk the 3 month full, 1 month incremental combination should work together, as it does for all other clients.
Any help in this matter would be much appreciated.
Well, incremental won't expire until youngest incremental has expired that has dependency on it. Now the only questions is would incremental which is the part of full 1 backup cycle expire if full didn't expire. I guess it would as it does for other clients which means that you need to dig into configuration and mminfo to see what is really going on.
On AFT, unlike tape, this should not be a problem. Savesets in the AFT will get removed as and when they expire. However, as mentioned earlier, look at the mminfo outputs on the actual retention dates getting set on the savesets. This would help to narrow down the problem. Since your problem is for only on of the clients, check the configuration for this client to ensure that the retention is correctly configured. I know that's very basic, but you never know where the problem is cropping up from.
I'm quite sure your customer will be happy to see his support is asking questions here
I'm not clear with this output as it does say nothing really (I actually have no idea if the format is DD/MM/YYYY or MM/DD/YYYY).
What you need is mminfo output which would show savetime,srowse and retention time along with saveset flags for this client and for the other client. Then you could easily point out where the difference is.
Looks like MM/DD to me ... but then I am just guessing. In any case, in addition to the flags, having the output for at least one incr backup and one full backup would help.
ble1
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Posted December 22nd, 2008 06:00