Description of Tapes
Description of Data Recovered
Recovery Commands
Tape 1
$ sudo dd if=/dev/nst0 of=teac_1_0.bin
71270+0 records in
71270+0 records out
36490240 bytes (36 MB) copied, 980.563 seconds, 37.2 kB/s
$ sudo mt -f /dev/nst0 status
drive type = Generic SCSI-1 tape
drive status = -2013265408
sense key error = 0
residue count = 0
file number = 1
block number = 0
Tape block size 512 bytes. Density code 0x88 (DLTtape IV 8000 uncompressed (40GB)).
Soft error count since last status=0
General status bits on (85010000):
EOF WR_PROT ONLINE IM_REP_EN
$ sudo dd if=/dev/nst0 of=teac_1_1.bin
257809+0 records in
257809+0 records out
131998208 bytes (132 MB) copied, 3461.68 seconds, 38.1 kB/s
$ sudo mt -f /dev/nst0 status
drive type = Generic SCSI-1 tape
drive status = -2013265408
sense key error = 0
residue count = 0
file number = 2
block number = 0
Tape block size 512 bytes. Density code 0x88 (DLTtape IV 8000 uncompressed (40GB)).
Soft error count since last status=0
General status bits on (85010000):
EOF WR_PROT ONLINE IM_REP_EN
$ sudo dd if=/dev/nst0 of=teac_1_2.bin
1+0 records in
1+0 records out
512 bytes (512 B) copied, 0.013078 seconds, 39.1 kB/s
mnielsen@tapezilla:~$ sudo mt -f /dev/nst0 status
drive type = Generic SCSI-1 tape
drive status = -2013265408
sense key error = 0
residue count = 0
file number = 3
block number = 0
Tape block size 512 bytes. Density code 0x88 (DLTtape IV 8000 uncompressed (40GB)).
Soft error count since last status=0
General status bits on (85010000):
EOF WR_PROT ONLINE IM_REP_EN
$ sudo dd if=/dev/nst0 of=teac_1_3.bin
0+0 records in
0+0 records out
0 bytes (0 B) copied, 0.007981 seconds, 0.0 kB/s
$ sudo mt -f /dev/nst0 status
drive type = Generic SCSI-1 tape
drive status = -2013265408
sense key error = 0
residue count = 0
file number = 4
block number = 0
Tape block size 512 bytes. Density code 0x88 (DLTtape IV 8000 uncompressed (40GB)).
Soft error count since last status=0
General status bits on (8d010000):
EOF EOD WR_PROT ONLINE IM_REP_EN
$ sudo dd if=/dev/nst0 of=teac_1_4.bin
0+0 records in
0+0 records out
0 bytes (0 B) copied, 0.000518 seconds, 0.0 kB/s
mnielsen@tapezilla:~$ sudo mt -f /dev/nst0 status
drive type = Generic SCSI-1 tape
drive status = -2013265408
sense key error = 0
residue count = 0
file number = 4
block number = 0
Tape block size 512 bytes. Density code 0x88 (DLTtape IV 8000 uncompressed (40GB)).
Soft error count since last status=0
General status bits on (8d010000):
EOF EOD WR_PROT ONLINE IM_REP_ENTape 2
Tragically erased during testing. The drive was sent the mt tell command which it interpreted as erase or quick erase. Let this be a lesson to all: when recovering data from tapes, switch ON the write-protect tab before you put it in the drive EVERY TIME.