I had an older box which I was using as the site backup machine. A
friend gave me a HP DAT72 drive and I got it up and working on the
Fedora 11 OS. I did backups and tested everything. The tape drive
was accessed as /dev/st4. This box ran Samba and users copied their
files to the this machine. I did backups using: tar cvf /dev/st4 /home/<user> /home/<user> Then I decided to upgrade. I swapped out the motherboard and got a 64 bit cpu and upgraded the OS (complete new install). I now have Fedora 15 running on the box. The tape drive has been visible as /dev/st4 occasionally. And when it is I have used it to make a small backup and test the restore. But the /dev/st4 is not always visible and the file /dev/st4 usually disappears upon reboot. I don't know what I did to make it appear (if anything). It almost looks like the device changed from /dev/st4 to /dev/st0. Is that possible? Some more info: #ls /dev/st* /dev/st0 /dev/st0a /dev/st0l /dev/st0m /dev/stderr /dev/stdin /dev/stdout #lsscsi [0:0:0:0] cd/dvd PIONEER DVD-RW DVR-106D 1.08 /dev/sr0 [2:0:0:0] disk ATA WDC WD2500JS-60M 10.0 /dev/sda [2:0:1:0] disk ATA ST2000DL003-9VT1 CC32 /dev/sdb [3:0:0:0] disk ATA ST2000DL003-9VT1 CC32 /dev/sdc [3:0:1:0] disk ATA ST2000DL003-9VT1 CC32 /dev/sdd [4:0:4:0] tape HP C7438A V312 /dev/st0 # dmesg |grep tape [ 25.211496] st 4:0:4:0: Attached scsi tape st0 #cat /proc/scsi/scsi Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: PIONEER Model: DVD-RW DVR-106D Rev: 1.08 Type: CD-ROM ANSI SCSI revision: 05 Host: scsi2 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: WDC WD2500JS-60M Rev: 10.0 Type: Direct-Access ANSI SCSI revision: 05 Host: scsi2 Channel: 00 Id: 01 Lun: 00 Vendor: ATA Model: ST2000DL003-9VT1 Rev: CC32 Type: Direct-Access ANSI SCSI revision: 05 Host: scsi3 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: ST2000DL003-9VT1 Rev: CC32 Type: Direct-Access ANSI SCSI revision: 05 Host: scsi3 Channel: 00 Id: 01 Lun: 00 Vendor: ATA Model: ST2000DL003-9VT1 Rev: CC32 Type: Direct-Access ANSI SCSI revision: 05 Host: scsi4 Channel: 00 Id: 04 Lun: 00 Vendor: HP Model: C7438A Rev: V312 Type: Sequential-Access ANSI SCSI revision: 03 #tar cvf /dev/st4 /root tar: /dev/st4: Cannot open: No such device or address tar: Error is not recoverable: exiting now #tar cvf /dev/st0 /root <does nothing - just times out after a few minutes with the following message> tar: /dev/st0: Cannot open: Input/output error tar: Error is not recoverable: exiting now #./rescan-scsi-bus.sh Host adapter 4 (aic7xxx) found. ./rescan-scsi-bus.sh: line 31: [: too many arguments Host adapter * (device_info) found. Scanning hosts 4 * channels 0 for SCSI target IDs 0 1 2 3 4 5 6 7 , LUNs 0 Scanning for device 4 0 4 0 ... OLD: Host: scsi4 Channel: 00 Id: 04 Lun: 00 Vendor: HP Model: C7438A Rev: V312 Type: Sequential-Access ANSI SCSI revision: 03 0 new device(s) found. d.txt 0 7 0 ... 0 device(s) removed. #MAKEDEV /dev/st4 # ls /dev/st* /dev/st0 /dev/st0l /dev/st4 /dev/st4l /dev/stderr /dev/stdout /dev/st0a /dev/st0m /dev/st4a /dev/st4m /dev/stdin #tar cvf /dev/st4 /root tar: /dev/st4: Cannot open: No such device or address tar: Error is not recoverable: exiting now # mt -f /dev/st4 status /dev/st4: No such device or address #tar cvf /dev/st0 /root tar: /dev/st0: Cannot open: Input/output error tar: Error is not recoverable: exiting now # mt -f /dev/st0 status SCSI 2 tape drive: File number=-1, block number=-1, partition=0. Tape block size 0 bytes. Density code 0x0 (default). Soft error count since last status=0 General status bits on (10000): IM_REP_EN #<Reboot> ls /dev/st* /dev/st0 /dev/st0a /dev/st0l /dev/st0m /dev/stderr /dev/stdin /dev/stdout Does anybody have a clue? Is there some command that I am missing? What can I do? Thanks for any help! Bill |
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