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тАО12-16-2004 06:51 AM
тАО12-16-2004 06:51 AM
Cannot read/write DDS-2 tapes on a C1537A
I just recently bought an used HP SureStore 24DAT at an auction
but it seems it cannot read or write DDS-2 tapes. DDS-1 and
DDS-3 seems to work fine.
When trying to access the tape using the command "tar tvf /dev/st0"
it reponds with:
tar: /dev/st0: Cannot read: Input/output error
tar: At beginning of tape, quitting now
tar: Error is not recoverable: exiting now
And that is after trying for some time (~ 1 min) and also
after doing some internal cleaning.
I also get the following in /var/log/messages
Dec 16 19:02:15 mother kernel: st0: Error with sense data: Info fld=0x2800, Current st09:00: sense key Medium Error
Dec 16 19:02:15 mother kernel: Additional sense indicates Track following error
The drive to seem to recognize all three types of DDS-tapes.
mtst status reports the following for the different tapes:
SCSI 2 tape drive:
File number=0, block number=0, partition=0.
Tape block size 0 bytes. Density code 0x25 (DDS-3).
Soft error count since last status=0
General status bits on (41010000):
BOT ONLINE IM_REP_EN
SCSI 2 tape drive:
File number=0, block number=0, partition=0.
Tape block size 0 bytes. Density code 0x24 (DDS-2).
Soft error count since last status=0
General status bits on (41010000):
BOT ONLINE IM_REP_EN
SCSI 2 tape drive:
File number=0, block number=0, partition=0.
Tape block size 0 bytes. Density code 0x13 (DDS (61000 bpi)).
Soft error count since last status=0
General status bits on (41010000):
BOT ONLINE IM_REP_EN
I've also tried setting different blocksizes like
10240, 20480 and other but nothing seems to work.
Anyone got an idea what could be wrong with this unit?
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тАО12-16-2004 08:16 AM
тАО12-16-2004 08:16 AM
Re: Cannot read/write DDS-2 tapes on a C1537A
have you tried the dds-2 tape in another drive to exclude the possibility of a bad tape?
greetings,
Michael
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тАО12-16-2004 09:05 PM
тАО12-16-2004 09:05 PM
Re: Cannot read/write DDS-2 tapes on a C1537A
You refer this link for evidence.
http://h18006.www1.hp.com/products/quickspecs/11883_div/11883_div.html#Technical%20Specifications
Regards
tienna
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тАО12-17-2004 12:06 AM
тАО12-17-2004 12:06 AM
Re: Cannot read/write DDS-2 tapes on a C1537A
:
: have you tried the dds-2 tape in another drive to exclude the
: possibility of a bad tape?
I just grabbed two DDS-2 tapes from my collection and neither worked.
Then I tried them in my old DDS-2 drive and neither worked there
either...
After that I tried several DDS-2 tapes in my old drive and found a few
more tapes that I could not read, but I also got several working ones.
But, none of those tapes worked in my second hand SureStore DAT24 drive.
All DDS-1 works both reading and writing and so do the two new DDS-3 I
bought to test the new drive. Well, at least the drive works OK with
the DDS-3 tapes and I guess I should be happy for that since the drive
only costed med $35 at the auction.
But still I'm curious about *why* and if there is anything one can
do about it?
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тАО12-17-2004 06:32 AM
тАО12-17-2004 06:32 AM
Re: Cannot read/write DDS-2 tapes on a C1537A
Josh