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HP surestore ultrium 230

Jordi Gras
Advisor

HP surestore ultrium 230

Hi,

We are trying to make backups of our Informix database with 'onarchive' tool, getting this error:

'Failure detected: ARC-E-01344, Error whil
e rewinding the save-set.'

We tried to save data to the ultrium device with 'dd' and 'tar', and then read the data back from the tape, and it works fine.

When testing the ultrium device with 'mt' command, these are the results:

# mt -f /dev/rmt/1m bsf
bsf 1 failed: I/O error

With 'fsf' parameter, 'offl' and 'rew', 'mt' command runs ok, without I/O errors.

Please, anybody can help us?

Thank you very much in advance!
Take it easy...
4 REPLIES
Leif Halvarsson_2
Honored Contributor

Re: HP surestore ultrium 230

Hi
The following is from tne "man mt" command:

Only raw, no-rewind Berkeley-type devices should be specified. This
type of device will not reposition the tape upon close. An example of
such a device is /dev/rmt/0mnb.

Normaly /dev/rmt/1m is a rewinding device file and it is not possible to baskstace at tape if it already is rewinded.
Jordi Gras
Advisor

Re: HP surestore ultrium 230

That's right Leif but whenever are using rewind or no-rewind drivers, must not affect the result of the command. We test the same command on a DLT8000 and it works fine.

Perhaps we need additional patches for the Ultrium 230 device...

Thanks for your help Leif!
Take it easy...
Leif Halvarsson_2
Honored Contributor

Re: HP surestore ultrium 230

Hi
I tested this on one of our Ultrium drives. Yes it works (I get no error messages using either rewinding or no-rewinding device files).
As this works for you with a DLT drive I dont think this is a OS patch problem (as Ultrium and DLT use the same (stape) driver. Perhaps you should look at the drive software, I use E19V.
Jordi Gras
Advisor

Re: HP surestore ultrium 230

Sorry, I didn't say that the test over the DLT8000, was made on a different server.

Finally HP discovered that we need three patches for the LTO to run without problems.

Thank you very much for your time, Leif

Jordi
Take it easy...