RE: [flexbackup-help] blksize parameters

[Niall B. <ni...@la...>]

Hi Erwan,
Could you include your configuration again?
" grep -v -e ^\# -v -e ^$ /etc/flexbackup.conf  "
will give us just your active configuration.

What output do you get from: " mt status " ?

Are you using version 1.2.1 of flexbackup?

OK - take compression and the tape out of your next test.
Make a directory /tmp/FlexTest,
set these options and run flexbackup again.

$compress =3D 'false';
$device =3D '/tmp/FlexTest/';

Now "  flexbackup -test-tape-drive " will say,
'No use trying tape drive tests on directories!',
but it will tell you if the rest of your syntax is correct.

If you get no errors, run it again without compression but with the tape:
$compress =3D 'false';
$device =3D '/dev/nst0';

Please answer the list rather than me personally,
so that others may benefit and offer further advice.

Good luck,
Niall

On Mon, 6 Jun 2005 Erw...@sy... wrote:
> Hi Niall.
> Yes, I've already tried all this feature.
>  For the compression to I've already tried bzip, gzip, hardware and so on=
=2E
> My impression is the next one.
> After each=20
> flexbackup-test-tape-drive
> It send me
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> Comparing...
> directory /etc/flexbackup.conf and /tmp/test2.10734 are diff=C3=A9rents
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> FAILURE! Problem with tape driver or parameters.  Please see the FAQ
> or try changing the $blksize, $pad_blocks, or $mt_blksize settings.
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> SO I've tried to see what is talking about this /tmp/test.
> I modified the script and  I copy them into a directory
>  and when i open it it was just the /usr/bin/flexbackup.
> SO no idea but I continue.
> Thanks a lot for your help
>=20
> -----Message d'origine-----
> De : Niall Brosnan [mailto:ni...@la...]=20
> Envoy=E9 : lundi 6 juin 2005 11:46
> =C0 : CHEVALIER, Erwan -Syntegra FR
> Objet : Re: [flexbackup-help] blksize parameters (fwd)
>=20
> Hi Erwan,
> here is the message as sent to the list on Thursday.
> Do you usually receive list mail?
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> Hope it helps,
> Niall
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> ---------- Forwarded message ----------
> Date: Thu, 2 Jun 2005 11:29:06 +0100 (IST)
> From: Niall Brosnan <ni...@cs...>
> To: fle...@li...
> Subject: Re: [flexbackup-help] blksize parameters
>=20
> Dear Erwan,
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> > From: Erw...@sy...
> > Dear Flexbackup users,
> > I've tried all blksize between 0 and 512 which my max, and none of=20
> > this values is correct, so anyone can explain to me, where i'm wrong.
> > Here is my Flexbackup.conf
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> I assume you are using linux, and you should first change this setting:
> > $device =3D '/dev/st0';
> to
>  $device =3D '/dev/nst0';
> This is very important!
>=20
> > Dell Powervault 100T DAT 72 with magnetic tape of 36-72 GB.
> If your tape drive has compression turned on, you should not use software
> compression.
> I would recommend using software compression where possible as you will g=
et
> better predictions on size, and you will get better portability of your
> backups.
> It's far easier to recompile bzip2 for a new platform than it is to rever=
se
> engineer a compression algorithm on a chip when your Dell tape drive dies=
=2E
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> What errors are you seeing in /var/log/flexbackup ?
> Why do you feel that the blksize is your problem?
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> Niall
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>=20
>=20
>=20
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> ********************************************************************
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>=20
> Check us out at http://www.bt.com/consulting
>=20
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