Daily Backup on different tapes

Question

Hi,

I am having Networker Network ED 7.3.2 jumbo installed on Windows 2003 Servers. I am having three kinds of clients: File server, Exchange Backup and Oracle RMAN on HPUX. Now the customer has decided the policy of daily incremental from Monday to Friday and Weekly full on Sunday. Since the weekly tapes move offsite, they are using new tapes each week. Now I want to implement the same in Daily Backup. Means, I want to use new tape each day. Since the daily tapes are not meant for offsite movement, they will reside in the tape library(Quantum PX502) itself.
So what is the best way to plan the daily backup on new tapes every day with minimum number of groups & pools.

Thanks,
Shreejesh.

ble1 · Answer

Best thing would be to abandom such approach as you won't utilize tapes in such manner at all. However, if you wish to follow this path library inventory is something you will need to do on daily basis.

dk3 · Answer

Do you really want new tapes each day? Or are they overwritten in a regular schedule (eg. tapes for monday can be used again monday one week ahead)? I've seen this behaviour some years ago in a smaller environment where tapes where changed manually. In this case I'd create (in fact wouldn't - see Hrvoje's comment) one pool a day.

amediratta · Answer

This would not be a good strategy even while restoring data. You restore Full from first tape and then increments from each day's tape.

Especially for Oracle, where it is best to take a full backup every time if resources permit.

Still if you want a daily tape for a daily backup & minimize no. of groups & pools, may be you create a single group & pool and change tapes manually every day and label new for everyday.

Other alternate to this could be create a single group & pool, label x no. of tapes that you can afford to keep in the library and every morning mark the tapes allready used as Read Only so that the next backup happens on a new tape and then refill the library once a week and recycle them manually when required.

NetWorker

Daily Backup on different tapes

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