/dev/rmt not playing ball ....

[grega]

E3500 runing Solaris 8, with an attached Sun DLT7000. Drive was fine until yesterday. All of a sudden mt status started reporting "No such device or address". All cables connected OK. Drive working happily as /dev/rmt/0

boot -r did nothing. devfsadm -c tape did nothing. Deleted all links under /dev/rmt. Retried devfsadm & boot -r with no luck. probe-scsi-all appeared to hang. Now no links under /dev/rmt

Any thoughts on what could be wrong?

Greg.

 

[tuka]

You said the probe-scsi-all appeared to hang. This could be the smoking gun!.

If you can do a probe-scsi-all again---THEN turn the DLT off or best just remove it prior to the probe-scsi.

If the probe-scsi doesn't hang then the DLT is the problem.

If the probe hangs then some other device on that bus is causing you grief.

 

[grega]

Removed the DLT. probe still seems to be hanging. It immediately reports "/sbus@3,0/SUNW,fas@4,8800000" and has now been sitting like that for 1/2 hour.

Unfortunately I don't know where to go next :-(

Any ideas? (we don't have a support contract for the box)

Greg.

 

[jad]

is the cable terminated?

just asking

 

[grega]

err ... no .... doh!


Greg.

 

[grega]

Just put a terminator in the SCSI port - no difference. I'm a bit over my head on this one I'm afraid - just don't understand why it suddenly stopped working.

Greg.

 

[grega]

Believe it or not, all is working again. Powered *everything* down again, re-connected DLT, powered up DLT & then server and ran devfsadm -c tape - all links created in /dev/rmt and mt status reporting as expected. This one beats me ... seems like the DLT may have been playing up, but I guess we'll never know!

Thanks all

Greg.

 

[jad]

was it the only device on that channel then?

if it is ... is it a scsi card, or built into the motherboard? (if it is a card is the card seated properly) also what do you have on your other channels (if any) ? ...

 

[grega]

jad, I'd need to think about that - not my box and I'm not terribly up to speed on scsi, h/w, etc. I think the 4 disks are SCSI as well as the DLT. How they're connected - haven't a clue I'm afraid :-(

Greg.

 

[jad]

SCSI is a strange animal ... the data that most SCSI controllers hold survives a soft boot ... it always suggests powering down and up again in order to make the SCSI bus forget ...

it's a bit of a pain when it goes wrong ... not that it's often.