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mt and tar fail on LTO-5 drives
- From: bartels <bartels at mailme dot ath dot cx>
- To: cygwin at cygwin dot com
- Date: Sat, 17 Aug 2013 20:35:32 +0200
- Subject: mt and tar fail on LTO-5 drives
Hello People,
I have here two SAS connected LTO-5 drives: one IBM and one HP.
Both drives work work fine, but sadly mt does not.
The size reported by mt is a meager 35 GB, instead of the expected 1.5TB
I have tried both an older 32 bit and the 'current' 64 bit cygwin: same result.
Writing to tape works fine with tar, but the tape is quickly considered 'full'.
Is there any hope of fixing this? LTO-6 is already out there.
Thanks
- Bartels
# IBM ULT3580+HH5 SCSI
$ mt -f /dev/nst0 status 3
drive type : 56 (STK 9840)
tape capacity : 37108736 KB remaining : 37093376 KB
current file : 0 active partition : 0
current block : 0 cur logical block: 0
General status bits on (410b8000):
BOT ONLINE IM_REP_EN CLN HW_ECC HW_COMP
min block size : 1 max block size : 1048576
def block size : 65536 cur block size : 0
density code : 58 (unknown)
Drive(r) Capabilities:
----------------------
fixed length blocks : yes var length blocks : yes
set block size : yes fixed partitioning : no
select partitioning : no initiator partitioning : no
get logical blockno : yes logical block spacing : yes
get absolute blockno : yes absolute block spacing : yes
logical block immediate : no absolute block immediate : no
relative block spacing : yes backward spacing : yes
immediate rewind : yes fast EOM spacing : yes
immediate spacing : no write marks immediate : yes
filemark spacing : yes write filemarks : yes
write long filemarks : no write short filemarks : no
report setmarks : no setmark spacing : no
write setmarks : no set report setmarks : no
sequential filemarks : no sequential setmarks : no
load and unload : yes un/load immediate : yes
lock and unlock : yes un/lock immediate : no
tape retension : no retension immediate : no
erase on bop only : no erase immediately : yes
long erase : yes short erase : yes
sw ejects media : no report write protection : yes
report EOT warn size : no set EOT warn size : no
data padding : no set data padding : no
returns capacity : yes returns remaining : yes
hw error correction : no set hw error correction : no
hw compression : yes set compression : yes
set comp. on bop only : no report cleaning request : yes
# HP Ultrium-5
$ mt -f /dev/nst0 status 3
drive type : 56 (STK 9840)
tape capacity : 37351424 KB remaining : 37351424 KB
current file : 0 active partition : 0
current block : 0 cur logical block: 0
General status bits on (410b0000):
BOT ONLINE IM_REP_EN HW_ECC HW_COMP
min block size : 2 max block size : 65536
def block size : 65536 cur block size : 0
density code : 58 (unknown)
Drive(r) Capabilities:
----------------------
fixed length blocks : yes var length blocks : yes
set block size : yes fixed partitioning : yes
select partitioning : yes initiator partitioning : yes
get logical blockno : yes logical block spacing : yes
get absolute blockno : yes absolute block spacing : yes
logical block immediate : yes absolute block immediate : yes
relative block spacing : yes backward spacing : yes
immediate rewind : yes fast EOM spacing : yes
immediate spacing : no write marks immediate : yes
filemark spacing : yes write filemarks : yes
write long filemarks : no write short filemarks : no
report setmarks : no setmark spacing : no
write setmarks : no set report setmarks : no
sequential filemarks : no sequential setmarks : no
load and unload : yes un/load immediate : yes
lock and unlock : yes un/lock immediate : no
tape retension : no retension immediate : no
erase on bop only : no erase immediately : yes
long erase : yes short erase : yes
sw ejects media : yes report write protection : yes
report EOT warn size : no set EOT warn size : no
data padding : no set data padding : no
returns capacity : yes returns remaining : yes
hw error correction : yes set hw error correction : no
hw compression : yes set compression : yes
set comp. on bop only : no report cleaning request : no
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