>>>>> On Fri, 13 Apr 2012 12:53:04 +0000, Steve Costaras said:
> Importance: Normal
> Sensitivity: Normal
>
> >From: Martin Simmons
> >> On Fri, 13 Apr 2012 09:13:31 +0000, Steve Costaras said:
> >> It's falling through down to 64512 when I have anything set larger than
> >> 2097152 for maximum block size.
> >
> >Yes, but it looks like this fails to report the error on startup:
> >
> > if (dev->max_block_size > 4096000) {
> > Jmsg3(jcr, M_ERROR, 0, _("Block size %u on device %s is too large,
> > using default %u\n"),
> > dev->max_block_size, dev->print_name(), DEFAULT_BLOCK_SIZE);
> > dev->max_block_size = 0;
> > }
>
>
> Good catch! It should really notify (would have saved some time in trouble-
> shooting
>
> Also is there a reason why this is hard coded in dev.c to 4096000 opposed to
> using MAX_BLOCK_LENGTH ? Which was upped to 20000000 (so there's only one
> define to change).
Looks like a bug to me.
>
>
>
> >
> >> WITH 2097152 as maximum block size I'm getting:
> >>
> >> ---
> >> Device status:
> >> Device "FileStorage" (/tmp) is not open.
> >> Device "LTO4" (/dev/nst0) is mounted with:
> >> Volume: FA0060
> >> Pool: BackupSetFA
> >> Media type: LTO4
> >> Total Bytes=223,244,193,792 Blocks=106,452 Bytes/block=2,097,134
> >> Positioned at File=20 Block=4,070
> >> ====
> >> --
> >>
> >> which is smaller than what I'm setting by ?18 bytes? I don't get that at
> >> all.
> >
> >It is a maximum, so you can't expect every block to be that size.
>
> Figured that but what would cause it to decrease (in this case I'm
> de-spooling an 800+ GB file to an LTO4 tape that has a lot of length still
> on it). So trying to figure out as to why it would be trimmed down?
Dunno, but you could look at the block sizes with bls -k.
__Martin
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