AW: AW: Copy DBBackup tape to disk (AIX)

Well, 

I understand once having database backup time of 3 hours 
you do not want to sacrifice so many system ressorces 
just for an additional db backup copy.

Another thoughts: perform regular database backups 
to either local or distinct disk an cpio/tar it to tape.
Tapes created with cpio should not cause any problems for dd.
Or run cpio/tar twice to get 2 tapes.
Do you happen to have required space free on your disks :(( ?

.. another ideas - usage of a tape raid-1 controller 
for either creating 2 backups at once 
or for creating bit-by-bit tape copy
do not necessarily fit into your price range ;-)

.. hmm, and let us please know 
once you have achieved your goal simply by using dd...

regards
juraj


-----Ursprüngliche Nachricht-----
Von: Horst Scherzer [mailto:Horst.Scherzer AT UNIVIE.AC DOT AT]
Gesendet: Montag, 31. März 2003 12:19
An: ADSM-L AT VM.MARIST DOT EDU
Betreff: Re: AW: Copy DBBackup tape to disk (AIX)


Salak Juraj wrote:
> 
> Hi,
> 
> no idea about your DD problem,
> but why do´nt you simply perform an out-of-bound backup to a disk (device
> type=file) instead?
> 
> If you can afford the extra CPU and disk last generated through additional
> backup process,
> you will have supported configuration without extra external steps
> during backup and during restore.
>
 
To clarify the situation: DB assigned is 90GB, DB used is 63GB, full
database
backup lasts for +/- 3 hours; cartridge is ejected and vaulted to another
physical location by operations staff. But not so during weekends.

TSM Disks and tape storage reside physically side by side so a db backup to
disk 
at the same physical location doesn't make really sense. 
The idea was simply to "virtually" vault the db backup cartridge by the
means of
OS to remote disks via Gigabit ethernet.

And getting cheap copies of db backups is also a charming approach.

Gtx,
--

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