I/O error while taking vdump

[venkat_29]

vdump: unable to write to device ; [5] I/O error
vdump: do you want to retry?

we take '0 level' backup daily on the media (DLT 40/80) with rotation schedule of weekly once we have been experieced on these error on new and old media.
can any body can help me, what are the causes behind this ??

thanks in advance

[RAC_1]

Do you get any dmesg/syslog errors for dlt tape drive. Did you check if it requires tape cleaning or not??

Did you check devive with stm??

Anil

[Devender Khatana]

Hi,

It is an error by the drive while writing to media. As you said you have allready tried replacing media with new one , it seems to a drive issue. Try cleaning with cleaning cartridge & retry.

Otherwise try with other drive if available.

HTH,
Devender

[Alessandro Pilati]

Venkat,
start giving a look to the error log file with the following command:
uerf -f /usr/adm/binary.errlog
or uerf -f /usr/var/adm/binary.errlog
and search for hardware problems.

And give a look also if you have PATCH ID: OSF425-952 on your server.

Regards,
Alessandro

[Mahesh Kumar Malik]

Hi Venkat

Check syslog.log for errors and clean the drive head

Regards
Mahesh

[venkat_29]

thanks all for solutions,

we have been facing this problem since 6 months, so far The actions we have taken are

1. cleaned the drives with cleaning dlt.
2. changed the old media
3. changed the drives which are suspected

we also facing the same problem with legato backup

other info:
os : tru64 5.1A Patch PK6
server : compaq alpha server DS20
Tape Library : TL895
Legato networker V6.0.1

and am also sending the out put uerf -f