Hey all,
I'm having some issues with a Benchmark DLT1 tape drive. What's
happening is that a daily backup of about 20 GB is taking about 9 hours
to run. This is way too long for that little bit of data. I've checked
system usage throughout that period with sar reports and the system
maintains a level of about 96% idle, so the system isn't busy. For most
tape modern tape drives 20 GB should take about an hour to backup. I've
also checked dmesg for errors, there aren't a lot just these:
st0: Block limits 2 - 16777214 bytes.
st0: Error with sense data: Info fld=0x2800, Current st09:00: sense key
Not Ready
Additional sense indicates Logical unit not ready,initializing cmd. required
st0: Error with sense data: Current st09:00: sense key Not Ready
Additional sense indicates Logical unit not ready,initializing cmd. required
st0: Error 250400f4 (sugg. bt 0x20, driver bt 0x5, host bt 0x4).
st0: Error 250400f4 (sugg. bt 0x20, driver bt 0x5, host bt 0x4).
st0: Error on write filemark.
st0: Error 250400f4 (sugg. bt 0x20, driver bt 0x5, host bt 0x4).
Has anyone else had any problems with this type of tape drive? Any
suggestions? I've posted the scsi_info & sdparm output below.
Thanks,
Ronnie
[root at myhost root]# scsi_info /dev/st0
SCSI_ID="5,0,0"
MODEL="BNCHMARK DLT1"
FW_REV="5538"
[root at myhost src]# sdparm --all /dev/st0
/dev/st0: BNCHMARK DLT1 5538 [tape]
Read write error recovery mode page:
AWRE 0 [cha: n, def: 0]
ARRE 0 [cha: n, def: 0]
TB 0 [cha: n, def: 0]
RC 0 [cha: n, def: 0]
EER 1 [cha: n, def: 1]
PER 0 [cha: y, def: 0]
DTE 0 [cha: n, def: 0]
DCR 0 [cha: n, def: 0]
RRC 32 [cha: n, def: 32]
COR_S 0 [cha: n, def: 0]
HOC 0 [cha: n, def: 0]
DSOC 0 [cha: n, def: 0]
WRC 15 [cha: n, def: 15]
Control mode page:
TST 0 [cha: n, def: 0]
TMF_ONLY 0 [cha: n, def: 0]
D_SENSE 0 [cha: n, def: 0]
GLTSD 0 [cha: n, def: 0]
RLEC 0 [cha: y, def: 0]
QAM 0 [cha: n, def: 0]
QERR 0 [cha: n, def: 0]
RAC 0 [cha: n, def: 0]
UA_INTLCK 0 [cha: n, def: 0]
SWP 0 [cha: n, def: 0]
ATO 0 [cha: n, def: 0]
TAS 0 [cha: n, def: 0]
AUTOLOAD 0 [cha: n, def: 0]
Data compression (SSC) mode page:
DCE 1 [cha: y, def: 1]
DCC 1 [cha: n, def: 1]
DDE 1 [cha: n, def: 1]
RED 0 [cha: n, def: 0]
COMPR_A 16 [cha: n, def: 16]
DCOMPR_A 16 [cha: y, def: 16]
Device configuration (SSC) mode page:
CAF 0 [cha: n, def: 0]
ACT_F 0 [cha: n, def: 0]
ACT_P 0 [cha: n, def: 0]
WOBFR 0 [cha: n, def: 0]
ROBER 0 [cha: n, def: 0]
WDT 200 [cha: y, def:200]
OBR 0 [cha: n, def: 0]
LOIS 1 [cha: n, def: 1]
RSMK 0 [cha: n, def: 0]
AVC 0 [cha: n, def: 0]
SOCF 0 [cha: n, def: 0]
ROBO 0 [cha: n, def: 0]
REW 0 [cha: n, def: 0]
GAP_S 0 [cha: n, def: 0]
EOD_D 0 [cha: n, def: 0]
EEG 1 [cha: n, def: 1]
SEW 1 [cha: y, def: 1]
SWP_T 0 [cha: n, def: 0]
BAML 0 [cha: n, def: 0]
BAM 0 [cha: n, def: 0]
OBSAEW 0 [cha: n, def: 0]
SDCA 1 [cha: y, def: 1]
WTRE 0 [cha: n, def: 0]
OIR 0 [cha: n, def: 0]
ROR 0 [cha: n, def: 0]
ASOCWP 0 [cha: n, def: 0]
PERSWP 0 [cha: n, def: 0]
PRMWP 0 [cha: n, def: 0]
Medium partition (SSC) mode page:
MAX_AP 0 [cha: n, def: 0]
APD 0 [cha: n, def: 0]
FDP 0 [cha: n, def: 0]
SDP 0 [cha: n, def: 0]
IDP 0 [cha: n, def: 0]
PSUM 0 [cha: n, def: 0]
POFM 0 [cha: n, def: 0]
CLEAR 0 [cha: n, def: 0]
ADDP 0 [cha: n, def: 0]
MFR 1 [cha: n, def: 1]
PART_U 0 [cha: n, def: 0]
Informational exceptions control mode page:
PERF 0 [cha: n, def: 0]
EBF 0 [cha: n, def: 0]
EWASC 0 [cha: n, def: 0]
DEXCPT 1 [cha: n, def: 1]
TEST 0 [cha: n, def: 0]
EBACKERR 0 [cha: n, def: 0]
LOGERR 0 [cha: n, def: 0]
MRIE 3 [cha: n, def: 3]
INTT 0 [cha: n, def: 0]
REPC 0 [cha: n, def: 0]
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