Try running devfsadm -c tape to get the drives back.

--On Wednesday, January 04, 2006 3:44 PM +0000 Dave Markham 
<dave.markham AT fjserv DOT net> wrote:

> Im seeing Drive downs on my systems using fibre. They seem to have
> dissapeared from 2 of the media managers also.
>
> running netbackup 5.0 mp4 with Sun L700 library 5 LTO2 drives, 3 of which
> are shared SSO option to 2 other media servers.
>
> All connected via a san switch ( what type i dont know as its in a remote
> site and i didnt install it ). I know the drives are zoned somehow and
> the wwn's for devices are in /kernel/drv/sd.conf. Everything was working
> fine and now some devices cant be seen when running cfgadm -al it says
> failing..
>
> Storedgetek have been out to check drives and say they are fine , yet
> every day my script notes 2 going down and brings them backup. It was
> just one of the shared drives now it has moved to 2 so all my ITC fails
> for the media servers.
>
> I have been trying to run cfgadm to reconfigure but i cant seem to get
> the syntax right
>
> :(
>
> D
>
>
> WEAVER, Simon wrote:
>
>> Ok, what about re-running the DEVICE Manager wizard to see if NBU
>> thinks something changed back in October?
>> Let it find the robot / drives again? maybe there is a scsi ID change
>> somewhere?
>>
>> *Simon Weaver*
>> *Technical Support*
>> *Windows Domain Administrator*
>>
>> */EADS Astrium/*
>> */Tel: 02392-708598/*
>>
>> *Email: Simon.Weaver AT Astrium.eads DOT net*
>>
>>     -----Original Message-----
>>     *From:* Barber, Layne (Contractor)
>>     [mailto:layne.barber.ctr AT csd.disa DOT mil]
>>     *Sent:* 04 January 2006 15:04
>>     *To:* WEAVER, Simon; veritas-bu AT mailman.eng.auburn DOT edu
>>     *Subject:* RE: [Veritas-bu] DLT drives going down
>>
>>     tapes stay in the drives and must be manually ejected. The robot
>>     doesn't remove the tapes because it thinks they are not there. It
>>     is acting as if the OS is losing communication with the device
>>     since robtest's unload command comes back with "device not present".
>>
>>     --------------------------------------------------------------------
>>     ---- *From:* WEAVER, Simon [mailto:simon.weaver AT astrium.eads DOT net]
>>     *Sent:* Wednesday, January 04, 2006 08:58
>>     *To:* Barber, Layne (Contractor); veritas-bu AT mailman.eng.auburn DOT 
>> edu
>>     *Subject:* RE: [Veritas-bu] DLT drives going down
>>
>>     IF it happens at the end of the job, may be worth checking the
>>     robot itself perhaps?
>>     Do the tapes STAY in the tape drives when the error appears? In
>>     other words, does the Robot manage to REMOVE the tape from the Drive?
>>
>>
>>
>>     *Simon Weaver*
>>     *Technical Support*
>>     *Windows Domain Administrator*
>>
>>     */EADS Astrium/*
>>     */Tel: 02392-708598/*
>>
>>     *Email: Simon.Weaver AT Astrium.eads DOT net*
>>
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>
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