Tape problems

As for NW, upgrade to 7.3.1.

As for error, do you see anything else at that time in system logs (and SAN logs if drives are attached via SAN).

Hi...

There's a variation in the amount of data... sometimes are 50GB, sometimes are 80GB...and I can see any specific error about this or any other matter... the tapes are just being marked full prematurely...

And yes, the tapes are LTO-3 (400GB-800GB)...

Any ideas?

Thanks...

Xavier - could you post the message you are seeing in the daemon.log prior to the tapes being marked full?

Is this a consistent error or is there a variation in the amount of data written? You could try getting some info out with mminfo -m to verify this.

Also, are you seeing any errors and the tapes are being marked full prematurely.

Another thing - the drives are LTO3 but are the tapes also? LTO1 will be 100GB uncompressed...

Hi all,

I copy the daemon.log part with the tape problem seems to be...

06/23/06 03:13:12 nsrd: media warning: \\.\Tape0 writing: Controlador no válido., at file 0 record 1
06/23/06 03:13:12 nsrd: media notice: LTO Ultrium-3 tape on \\.\Tape0 is full
06/23/06 03:13:12 nsrd: media notice: LTO Ultrium-3 tape used 133 GB of 650 GB capacity
06/23/06 03:13:15 nsrd: media notice: Volume "" on device "\\.\Tape0": Block size is 32768 bytes not 65536 bytes. Verify the device configuration. Tape positioning by record is disabled.
06/23/06 03:13:15 nsrd: media warning: \\.\Tape0 reading: No hay más datos en la cinta.
06/23/06 03:13:15 nsrd: media warning: \\.\Tape0 reading: No hay más datos en la cinta.
06/23/06 03:13:15 nsrd: media warning: \\.\Tape0 reading: No hay más datos en la cinta.
06/23/06 03:13:15 nsrd: media warning: \\.\Tape0 reading: No hay más datos en la cinta.
06/23/06 03:13:17 nsrd: \\.\Tape0 Verify label operation in progress
06/23/06 03:13:21 nsrd: media warning: \\.\Tape0 moving: fsf 75: drive status is The end of data was reached
06/23/06 03:13:27 nsrd: media warning: \\.\Tape0 moving: fsf 75: drive status is The end of data was reached
06/23/06 03:13:33 nsrd: media warning: \\.\Tape0 moving: fsf 75: drive status is The end of data was reached
06/23/06 03:13:33 nsrd: media emergency: could not position to file 75, record 2792
06/23/06 03:13:33 nsrd: media warning: \\.\Tape0 reading: No hay más datos en la cinta.
06/23/06 03:13:33 nsrd: media warning: \\.\Tape0 reading: No hay más datos en la cinta.
06/23/06 03:13:33 nsrd: media warning: \\.\Tape0 reading: No hay más datos en la cinta.
06/23/06 03:13:33 nsrd: media warning: \\.\Tape0 reading: No hay más datos en la cinta.
06/23/06 03:13:33 nsrd: media warning: \\.\Tape0 reading: No hay más datos en la cinta.
06/23/06 03:13:33 nsrd: media warning: \\.\Tape0 reading: No hay más datos en la cinta.
06/23/06 03:13:33 nsrd: media warning: verification of volume "", volid 4238004383 failed, can not read record 2792 of file 75 on LTO Ultrium-3 tape
06/23/06 03:13:33 nsrd: media notice: verification of volume "", volid 4238004383 failed, volume is being marked as full.

I hope this could help...

Thanks a lot..

What OS is that (2003 SP1 perhasp)?. Did you try manually to position on fn75 rn 2793? Also, since this is LTO-3 I would check if you have latest set of drivers and drive firmware.

This is looking like an issue with hardware - it could be a faulty drive, a config issue, drivers etc.

You must change your OS's block size.
Now your OS identify the tape driver's block size is 32K.But Networker label the tape with 64K.So your tape is not same with os and networker server.
OS's tape block size can be change with OS system tool,and networker server's block size can be change with Networker start script.For example:
you can vi start script: /etc/init.d/networker,add:
NSR_DEV_BLOCK_SIZE_<tape type>=64(unit is Kbyte)
export NSR_DEV_BLOCK_SIZE_<tape type>

Registry or some other setting (if related to some other product other than OS). Check MS and EMC KB on that.

How could I change the block size in a Windows Server?

Thanks.

Thanks Hrvoje... I have a PowerVault 132T library with two tape drives... I updated the firmware of the library and the two tape drives and it seems to work fine!!!!!

Regards,

Xavi.