I have a Sunfire v20z running Windows Server 2003 Sp2 connected to a Storedge L8 Auto Tape Loader with a single drive in it. Backup software used is Legato Networker 7.2. We had a power failure some time ago and after that backups have not been working. Initially I used to get a symmpi error in the system log, so I changed the SCSI card, SCSI cable on the server and also changed the tape drive. The error went away but backups are still not working. I do not get any error on Windows now but Legato gives me I/O errors after backing up somewhere between 30MB and 60MB. No backups work although I can mount, unmount etc from the tape drive and also using the software. So there seems to be a connection between the two but it does not allow backups to run for long. Also RSM is not controlling the tape drive.
I have tried changing tapes, relabeling, cleaning the drive but its no use. The app logs for Networker do not show anything besides I/O errors. Any suggestions are welcome. TIA