Unknown error 21 when labelling a Tape

[bixente43]

hi,

Since a couple of days, it's impossible to label 9840 Tape on a Networker 6.1.4 server (windows 2000). We have the following error :
"label write, unknown error 32"
or "cannot set record size : block size ioctl failed"

Sometimes a tape can be labelled. When i use it for a backup, it begins correctly but after a few seconds i have this message :
nsrd: media warning: \\.\Tape1 writing: unknown error 21 (0x15), at file 2 record 143
nsrd: media notice: 9840 tape N10860 on \\.\Tape1 is full
nsrd: media notice: 9840 tape N10860 used 36 MB of 20 GB capacity
nsrd: media warning: \\.\Tape1 reading: unknown error 21 (0x15)
...
nsrd: media warning: \\.\Tape1 moving: tape_rewind rewind failed: unknown error 21 (0x15) (268435477)
nsrd: media warning: \\.\Tape1 moving: fsf 2: unknown error 21 (0x15)
nsrd: media emergency: could not position N10860 to file 2, record 139
nsrd: media warning: \\.\Tape1 reading: unknown error 21 (0x15)
nsrd: media notice: Volume "N10860" on device "\\.\Tape1": Cannot decode block. Verify the device configuration. Tape positioning by record is disabled.
nsrd: media warning: verification of volume "N10860", volid 2880035073 failed, can not read record 139 of file 2 on 9840 tape N10860
nsrd: media notice: verification of volume "N10860", volid 2880035073 failed, volume is being marked as full.

The only change we have made was to upgrade the 9840 FW (1.35.109 now, 1.35.105 before).

An idea?
Thanks

 

[605]

It is a hidden parameter in the "Advanced" tab called "Device block size" which you can adjust.

 

[Rexxy]

is that a hidden param in windows device manager....?

 

[605]

It is a hidden parameter for the device.

For NW 7.3 you must activate "View - Diagnostics" to see it.

 

[Rexxy]

aaah i see, but he mentioned v7.2, so when you stated "hidden param in Advanced tab", it sounded like a windows comment.....

basically in 7.2 the device config with Hidden details enabled....

or

nsradmin> option hidden
nsradmin> show name;Device block size
nsradmin> print type: nsr device;name:/dev/nst0

 

[bixente43]

Hi,

Sorry for my late response.

Microsoft has published an article about my problem (Article ID : 842411).

The solution is to disable TEST UNIT READY request for tape devices.

Now it works.

Thanks a lot for your help.