This can be caused by scsi bus errors.... I note that nsrlcpd lost
contact with the library also at some stage - this would suggest scsi
bus errors also...


Check your cabling,    check your terminators...    Especially remember
to check for bent pins in the plugs...


It could also be the possibility that a device on the bus is causing the
errors...    Can you move things around? Eg moving the library to
another scsi bus?

> -----Original Message-----
> From: EMC NetWorker discussion 
> [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On Behalf Of Dave Martini 1
> Sent: Friday, 5 October 2007 7:11 AM
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> Subject: [Networker] Tapes marked full prematurely
> 
> Once again it prematurely marked my tapes full. One at 27 
> gigs and the 
> other at 30 gigs.
> Why is it giving this error?????
> Block size is 32768 bytes not 131072 bytes.
> 
> 
> Here are the errors in the log exactly when it happened.
> 
> The first 2 lines show I/O errors
> 
> 10/03/07 21:37:25 nsrd: media warning: /dev/rmt/1cbn writing: 
> I/O error, 
> at file 23 record 15550
> 10/03/07 21:37:25 nsrd: media warning: /dev/rmt/0cbn writing: 
> I/O error, 
> at file 18 record 11805
> 
> And then it marks both tapes full
> 
> 
> 10/03/07 21:37:25 nsrd: media notice: 8mm AIT-5 tape 000001 on 
> /dev/rmt/1cbn is full
> 10/03/07 21:37:25 nsrd: media notice: 8mm AIT-5 tape 000002 on 
> /dev/rmt/0cbn is full
> 10/03/07 21:37:25 nsrd: media notice: 8mm AIT-5 tape 000001 
> used 27 GB 
> of 400 GB capacity
> 10/03/07 21:37:26 nsrd: media notice: 8mm AIT-5 tape 000002 
> used 30 GB 
> of 400 GB capacity
> 10/03/07 21:37:38 nsrd: media notice: Volume "000001" on device 
> "/dev/rmt/1cbn": Block size is 32768 bytes not 131072 bytes. 
> Verify the
> device configuration. Tape positioning by record is disabled.
> 10/03/07 21:37:48 nsrd: media notice: Volume "000002" on device 
> "/dev/rmt/0cbn": Block size is 32768 bytes not 131072 bytes. 
> Verify the
> device configuration. Tape positioning by record is disabled.
> 10/03/07 21:37:57 nsrd: media warning: Jukebox 
> `[email protected]' Hardware 
> status of jukebox '[email protected]' changed from 'ready' to 'cann
> ot access the hardware'
> 10/03/07 21:38:24 nsrd: media warning: Jukebox 
> `[email protected]' Hardware 
> status of jukebox '[email protected]' changed from 'cannot access t
> he hardware' to 'detected hardware change'
> 10/03/07 21:38:26 nsrmmgd: Resynchronizing jukebox 
> `[email protected]' with 
> nsrlcpd.
> 10/03/07 21:38:46 nsrd: media warning: /dev/rmt/0cbn reading: 
> fsr 11799 
> read: I/O error
> 10/03/07 21:38:46 nsrd: media emergency: could not position 000002 to 
> file 18, record 11801
> 10/03/07 21:38:59 nsrd: media info: Jukebox `[email protected]' Hardware 
> status of jukebox '[email protected]' changed from 'detected hardware
> change' to 'ready'
> 10/03/07 21:39:56 nsrd: media warning: /dev/rmt/0cbn reading: 
> fsr 11799 
> read: I/O error
> 10/03/07 21:39:56 nsrd: media emergency: could not position 000002 to 
> file 18, record 11801
> 10/03/07 21:41:09 nsrd: media warning: /dev/rmt/0cbn reading: 
> fsr 11799 
> read: I/O error
> 10/03/07 21:41:09 nsrd: media emergency: could not position 000002 to 
> file 18, record 11801
> 10/03/07 21:41:09 nsrd: media warning: /dev/rmt/0cbn moving: 
> fsf 18: I/O 
> error
> 10/03/07 21:42:23 nsrd: media warning: /dev/rmt/0cbn reading: 
> fsr 11799 
> read: I/O error
> 10/03/07 21:42:23 nsrd: media emergency: could not position 000002 to 
> file 18, record 11801
> 10/03/07 21:42:23 nsrd: media warning: verification of volume 
> "000002", 
> volid 274782 failed, can not read record 11801 of file 18 on 8m
> m AIT-5 tape 000002
> 
> Thanks.
> Dave Martini
> LLNL
> 
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