[Networker] Troubeshooting cause of media write error?

I noticed the following in my logs:

Feb 1 05:08:47 britt scsi: [ID 107833 kern.warning] WARNING:/pci@1d,700000/SUNW,jfca@1/fp@0,0/st@w211f0090a5001194,1 (st19):Feb 1 05:08:47 britt Error for Command: write ErrorLevel: FatalFeb 1 05:08:47 britt scsi: [ID 107833 kern.notice] Requested Block:8186 Error Block: 8186Feb 1 05:08:47 britt scsi: [ID 107833 kern.notice] Vendor: SONYSerial Number:Feb 1 05:08:47 britt scsi: [ID 107833 kern.notice] Sense Key: MediaErrorFeb 1 05:08:47 britt scsi: [ID 107833 kern.notice] ASC: 0x3b (<vendorunique code 0x3b>), ASCQ: 0x8, FRU: 0x0Feb 1 05:08:47 britt root: [ID 702911 local0.alert] NetWorker media:(critical) TapeAlert flag "Write failure" has been posted for/dev/rmt/3cbnFeb 1 05:08:47 britt root: [ID 702911 daemon.notice] NetWorker media:(critical) TapeAlert flag "Write failure" has been posted for/dev/rmt/3cbnFeb 1 05:08:48 britt root: [ID 702911 daemon.notice] NetWorker media:(warning) /dev/rmt/3cbn writing: Invalid argument, at file 616 record 8188Feb 1 05:08:48 britt root: [ID 702911 daemon.notice] NetWorker media:(warning) TapeAlert flag "Hard error" has been posted for /dev/rmt/3cbnFeb 1 05:08:48 britt root: [ID 702911 daemon.notice] NetWorker media:(notice) SAIT-1 tape 006984S1 on /dev/rmt/3cbn is fullFeb 1 05:08:48 britt root: [ID 702911 daemon.notice] NetWorker media:(notice) SAIT-1 tape 006984S1 used 612 GB of 512 GB capacity

To me, this looks like a probable media error, but how can I make sure itsnot a drive problem either? I haven't seen any errors like this before orafter the incident, but I would still like to check if anyone has anyinsight in what these error codes mean with SAIT-1 drives..?


//Oscar

--
Note: To sign off this list, send a "signoff networker" command via email
to listserv AT listserv.temple DOT edu or visit the list's Web site at
http://listserv.temple.edu/archives/networker.html where you can
also view and post messages to the list. Questions regarding this list
should be sent to stan AT temple DOT edu
=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=