At first I thought this......When you re-added the Library you got the
default block size not the previous libraries configured block size for
the tape. For faster writes to tape I consistently use 256Kb for the
block size. When I get new hardware (like the next level of LTO drives)
I always reconfigure the devices to use NOT "handler default" which on
windows is 32KB but my preferred block size which is 256kb.
But then after reading the entire post I thought.....bad tape? If 8 out
10 tapes did not generate a block size error than maybe you have two
tapes heading south or even a dirty drive.
Thanks,
Dana
> -----Original Message-----
> From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU]
On
> Behalf Of MIchael Leone
> Sent: Wednesday, March 12, 2008 8:38 AM
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> Subject: Block size errors on Win2003
>
> I got a couple of these errors the last couple nights. We use Win2003,
NW
> 7.4 SP1, and always have. All the media therefore has always been
written
> to by Win2003, it's not like we're mixing media that had been written
by a
> Unix system.
>
> NetWorker media: (notice) Volume "910088" on device "\\.\Tape3": Block
> size is 32768 bytes not 131072 bytes. Verify the device configuration.
> Tape positioning by record is disabled.
>
> Now, I did have to delete and re-add the library, because the device
name
> changed (see recent thread on this topic). However, NW automatically
> configured the drive; I never specified anything about blocksize. And
the
> Windows blocksize shouldn't change - it should be the same as it was
in
> the past. I ahve other tapes of this same vintage that are not
reporting
> this problem (i.e., these are all tapes that came back into rotation
after
> our standard 2 month cycle). So the block size on all 10 tapes that
were
> used last night should have been the same, yet only 2 tapes are the
ones
> complaining.
>
> Since these were clone jobs, it meant I had to manually start a couple
> clone jobs before I went to bed last night, which is not exactly what
I
> wanted to do with my evening. :-)
>
> Thoughts? Causes, preventative measures for future?
>
> Thanks
>
> --
> Michael Leone
> Network Administrator, ISM
> Philadelphia Housing Authority
> 2500 Jackson St
> Philadelphia, PA 19145
> Tel: 215-684-4180
> Cell: 215-252-0143
> <mailto:michael.leone AT pha.phila DOT gov>
>
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