RE: anybody using Archecker with Onbar ?

Hello Floyd,

We do not verify every onbar backup, just every two weeks. Although we
have run onbar -v, during high load on the system during the day with no
major performance issues, and from my recollection the last time I
checked the verification takes slightly less time than the actual backup
itself.

Cheers

John

________________________________

From: Floyd Wellershaus [mailto:fwellers@xxxxxxxxx]
Sent: 27 April 2006 13:22
To: Kennedy, John; informix-list@xxxxxxxx
Subject: Re: anybody using Archecker with Onbar ?


Thanks John. Do you verify each and every onbar backup you make or just
spot check them ?
Our big instance takes about 4.5 hours to backup, so I am guessing it
will take an equal amount of time to verify it.







========================
-<<Floyd Wellershaus>>-
Database Administrator
Unix Administrator


email: fwellers@xxxxxxxxx

Home: 703-430-0805

Cell: 703-477-6045
========================

http://www.one.org/


----- Original Message ----
From: "Kennedy, John" <john.kennedy@xxxxxxxxxxxxx>
To: Floyd Wellershaus <fwellers@xxxxxxxxx>; informix-list@xxxxxxxx
Sent: Thursday, April 27, 2006 8:01:33 AM
Subject: RE: anybody using Archecker with Onbar ?


Hello Floyd,

we here use onbar -v to verify our backups, I believe this just calls
the archecker utility to verify the backups.

There is an outstanding issue regarding Archecker failing when the
backup is actually successful, this was noted when we ran it on an
ontape backup however I am not sure if this same case for the
verifications using onbar -v.

I am investigating at the moment and will feedback to you with my
findings.

Cheers

John

________________________________

From: informix-list-bounces@xxxxxxxx
[mailto:informix-list-bounces@xxxxxxxx] On Behalf Of Floyd Wellershaus
Sent: 27 April 2006 11:59
To: informix-list@xxxxxxxx
Subject: anybody using Archecker with Onbar ?


I am wondering if it is considered best practice by many to use
Archecker to verify Onbar backups.
I've never used it before. Is it worth the resources it uses on the
system ( ie, a tape drive, database and system resources) ?

Also, I notice that it does the equivelent of oncheck -cd, ce and cr on
the backup tape. That seems to be a quick/alternate way to verify the
data on our database. Any thoughts about that ?

Thanks for any advice.





========================
-<<Floyd Wellershaus>>-
Database Administrator
Unix Administrator


email: fwellers@xxxxxxxxx

Home: 703-430-0805

Cell: 703-477-6045
========================

http://www.one.org/



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