IDS Forum

Re: AW: logical log size

Posted By: nestor gomez munoz
Date: Wednesday, 15 March 2006, at 10:13 a.m.

In Response To: AW: logical log size (Model-Bosch, Tilman)

We are in a test stage, making onbar backups on disk then to tape.
Database is on external Fiber channel boxes and bacup directories are=
on
internal disks, so backups go to disk then, after some days making
incremental and logical logs backups, all of the backup files go to t=
ape
together with important administrative files like oncfg* ism/ etc.

Backup jobs are quite fast and no time consuming.=20

At least this is the aproach but we are stil trying to find odds and
posible problems.

--Nestor

El mi=C3=A9, 15-03-2006 a las 09:04 -0500, Model-Bosch.... escribi=
=C3=B3:
> > MICHAEL FAVOLE wrote=20
> ....=20
> > The logical logs on my system are configured as 30 32MB logs.=
=20
> > The system has=20
> > been growing rapidly and currently cuts 2-3 logs every 5=20
> > minutes. Backup is to=20
> > a spectralogic tape unit, which is fairly slow to spin up. In=
=20
> > order to not run=20
> > out of logs due to backup issues, I was going to either=20
> > double my logs to 60=20
> > 32MB logs or double the log size making them 30 64MB logs.=20
> > The latter would=20
> > help aleviate spinup time since twice as much log is be=20
> > written per backup. I=20
> > would appreciate your opinion! Thanks=20
> >=20
> > Mike=20
>=20
> - Maybe a faster tape device=20
> - or create a file on disk, use it as LTAPEDEV and save the logical=
log=20
> files (numbered) to tape or somewhere else.=20
> I have not used any of them, but to my knowledge there are some pre=
tty=20
> sophisticated=20
> scripts out there which do this automated.=20
>=20
>=20
> *******************************************************************=
************=20
> Forum Note: Use "Reply" to post a response in the discussion foru=
m.=20
>=20

Messages In This Thread

• logical log size
  MICHAEL FAVOLE -- Monday, 13 March 2006, at 12:44 p.m.
  • Re: logical log size
    ART KAGEL, BLOOMBERG/ 731 LEXIN -- Tuesday, 14 March 2006, at 11:58 a.m.
    • Re: logical log size
      MICHAEL FAVOLE -- Thursday, 16 March 2006, at 2:34 p.m.
  • Re: logical log size
    John Bejarano -- Tuesday, 14 March 2006, at 11:59 a.m.
  • AW: logical log size
    Model-Bosch, Tilman -- Wednesday, 15 March 2006, at 9:04 a.m.
    • Re: AW: logical log size
      nestor gomez munoz -- Wednesday, 15 March 2006, at 10:13 a.m.
      • Re: AW: logical log size
        MICHAEL FAVOLE -- Thursday, 16 March 2006, at 2:40 p.m.

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