ADSM-L

Re: TSM DB backup question

2006-04-06 14:35:40
Subject: Re: TSM DB backup question
From: "Pugliese, Edward" <EPugliese AT NYBOT DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Thu, 6 Apr 2006 14:34:40 -0400
Have you considered sending the data to a virtual volume copypool at you
local TSM server and then sending those tapes offsite ?  That way you
could send data daily and have daily offsite copies.
 

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Rajesh Oak
Sent: Thursday, April 06, 2006 2:06 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] TSM DB backup question

For our local sites we vault daily, i.e we send copypool tapes to the
vault daily. For our remote sites since we do not any local vault
person, we have a contract with a company and the copypool tapes are
sent to the vault once a week.
The DR tapes should be sent evry day if possible else in case of a real
disaster you would lose over a weeks data if you send DR tapes once a
week.

Rajesh

> ----- Original Message -----
> From: "Vats.Ashok" <Ashok.Vats AT FTB.CA DOT GOV>
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: TSM DB backup question
> Date:         Wed, 5 Apr 2006 14:25:06 -0700
> 
> 
> hi Rajesh,
> WHat do you mean by not vault daily ? We send DR tapes once a week.
> 
> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf 
> Of Rajesh Oak
> Sent: Wednesday, April 05, 2006 2:20 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: [ADSM-L] TSM DB backup question
> 
> 
> Ashok,
> For our remote sites where we have a small library and do not vault 
> everyday, we backup the database to disk. You have to be a little 
> careful here because with your 161 DB database you would need a lot of

> diskspace to keep the db backup for a number of days.
> The device class has to be file and you have to make the size big 
> enough when you define it.
> 
> Let me know if you have any issues.
> 
> Rajesh
> 
> > ----- Original Message -----
> > From: "Remeta, Mark" <MRemeta AT SELIGMANDATA DOT COM>
> > To: ADSM-L AT VM.MARIST DOT EDU
> > Subject: Re: TSM DB backup question
> > Date:         Wed, 5 Apr 2006 14:05:28 -0400
> >
> >
> > The other factor to consider is that you should have the delay 
> > period for volume reuse on your tape storage pools set equal to the 
> > length of time you keep your database backups. Depending on how 
> > often you perform reclamation of those pools, these could add up
too!
> >
> > Mark
> >
> >
> > -----Original Message-----
> > From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf

> > Of Prather, Wanda
> > Sent: Wednesday, April 05, 2006 1:53 PM
> > To: ADSM-L AT VM.MARIST DOT EDU
> > Subject: Re: TSM DB backup question
> >
> >
> > The factor to decide:
> >
> > If you somehow had a TSM data base crash, or corruption in the TSM 
> > data base, how far would you be willing to restore your data base 
> > backwards in time?
> >
> > If you think you would never use that 30 day old TSM DB backup, you 
> > don't need to keep it.
> > I think a DB retention of 5-10 days is more common.
> >
> > And no, you can't put the TSM DB backups in a storage pool.
> >
> >
> > -----Original Message-----
> > From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On 
> > Behalf Of Vats.Ashok
> > Sent: Wednesday, April 05, 2006 1:39 PM
> > To: ADSM-L AT VM.MARIST DOT EDU
> > Subject: Re: TSM DB backup question
> >
> >
> > Hi List,
> > We have tsm 5.3.00 on AIX. We run TSM database backup which runs 
> > once / every day  consumes media from scratch pool. We keep these 
> > backups for at least 30 days. consuming almost 30 *200 GB tape 
> > media. Our data base is about 161 GB so my question is can we reduce

> > the retention time of TSM db backup to 7 days. I am not sure what 
> > are the factors which decides how long we need to keep these volumes

> > around. Also Does anybody have a storage pool defined for TSM DB 
> > backups. is it possible to do that ?
> >
> > Thanks,
> > Ashok
> >
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> 
> 
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