Greg...
Anybody would think you wrote jbackup or something!!! :)
Simon
---------------------------------
Simon Verona
Director
Dealer Management Services Ltd
Sent from my iPhone
On 22 Jan 2010, at 21:18, "Greg Cooper" <[email protected]> wrote:
Sorry you can't believe me, maybe I've made a mistake.
Let me check in case I don't know what I'm talking about.
Oh no, I was right, it was 2.5 seconds.
My Linux system has 8Gb of memory and the 1Gb file fits easily in
it. Because the output was to /dev/null there was no disc needed for
output. Hence, all memory based. And only 2.5 seconds.
As it is likely the backup time was all down to disc I/O as I'd
explained in the first email, then doing multiple backups in
parallel will only work of the original jBASE files are split across
2 or more discs -- if you use parallel backups on a single spindle,
it will most likely take longer as it will cause even more disc head
movement.
>
> I can't believe the backup of 1GB file in 2.5 seconds on linux or
any
> other system. possibly in the memory only but usually you can't keep
> the whole database in the memory.
>
> however, to speed up your backup and compress it you can use:
> tar -cf - bnk | gzip -1 > filename.tar.gz
>
> if you need to make it even faster then you can do it in parallel,
> several processes will do specific portion of the files within your
> bnk directory.
>
> jaro
>
> On Jan 20, 1:03 pm, jawwi <[email protected]> wrote:
> > Dear All,
> >
> > We are using jbackup for backing up data files through the
following
> > commands,
> >
> > find bnk -print | jbackup -S/home/itops2/stats -f/temenos/backups/
> > jbkp-17112009 -v 2> /home/itop
> > s2/Aviion_backup_log
> >
> > jbackup is taking too long almost 3 hours to backup the entire
data
> > files which is 72 GB in size.
> >
> > Is there any method or procedure or switch thats speed up the
process
> > and also compress the backup file
> >
> > Stats:
> >
> > OS : Hp-UX 11i V2
> > DB : JBASE 5.0.16
> >
> > Many Thanks in advance.
>
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