nsrd: media warning: /dev/rmt/14cbn reading: read open error, No such

[beach2112]

Hello all, please help. We have 5 tape drives that fail each night, they seem to work fine during the day and the when our dailyinc kick off we get these errors: The drives are fiber connected. We have 20 drives, but only these go down.

12/09/08 19:29:33 nsrd: /dev/rmt/14cbn 11:Verify label operation in progress
12/09/08 19:30:33 nsrd: media warning: /dev/rmt/14cbn opening: No such device or address
12/09/08 19:30:33 nsrd: media warning: /dev/rmt/14cbn reading: read open error, No such device or address
12/09/08 19:30:34 nsrd: /dev/rmt/14cbn 11:Eject operation in progress
12/09/08 19:31:34 nsrd: media warning: /dev/rmt/14cbn opening: No such device or address
12/09/08 19:32:04 nsrd: media info: unload error for jukebox `L700' detected. Retrying
12/09/08 19:32:04 nsrd: media info: unload retry for jukebox `L700': sleeping 30 seconds

 

[a060463xyz]

We need more information :
Which Networker Version and which OS do you use ?
Which Version of ACSLS ?
How many FC HBas ?
Type of hbas, driver, firmware.
FC Switches ?
Are all failing drives connected to the same hba ?

Do you have persistent mapping ?