Server 2003 R2
I have an HP StorageWorks Ultrium 215 external tape drive connected via SCSI cable to an external SCSI adapter. Everything was working fine for awhile until the backup failed 1 day. I was able to get it back up and running by powering off the Tape drive, disconnecting the SCSI cable from the tape drive, and disconnecting the power... then plugging everything back in. Then after about a week it stopped again. After some troubleshooting we decided to replace the SCSI cable which leads to my simple question.
Do I need to turn off my server or can I just swap out the SCSI cable with everything on (obviously I'll power off the tape drive).