LTO tape

[Sam_Barbakov]

Hello all.

My backup job failed and I found out that my 400GB LTO tape "has" 35GB capacity.
How I can change the property of the tape? I tried new tape and it shows 35gb capacity also.
I upgraded server from 2000 to 2003.
Using BackupExec 10d.
Drive is IBM Ultrium TD3

Any ideas?
Thank you in advance

[ray_littlefie1]

You are lloking at the value 'total capacity' not 'used capacity' correct?

From the media tab, when you click on the tape is the media type identified as "LTO" ?

Sometimes total capacity is based on historical usage. Attempt a backup that you know will fill the tape (400Gb) and see what happens.

[Sam_Barbakov]

Yes, it is total capacity.
My last backup failed as there was not enough room to back up :(
I will try it this night again...

[Henry_Hong]

Sam.

That happened it to me too.
I just couldn't work out why but after I tried different drivers (Media Drive Vendors's and Veritas's) it finally worked out fine.

I assume you are keeping up with drive firmware.

[Gauri_Ketkar]

Hi Sam,

As suggested earliar please run a backup job atleast more 35GB
Also erase the tape once and run a 100GB job
Update device drivers and firmware also

Update us on the same



Thank you
Gauri

[Sam_Barbakov]

Well, I tried to backup regardless of test run failed. Now, when I go the tape properties it reads:
Used capacity : 292gb
Available capacity: 17.5 gb
total capacity:35.5 gb
compession ratio: 16.2:1
Bytes written 300GB
Bytes read: 293 gb, etc
So, even 300+gb were written it still thinks that only capcity this tape has is 35.5gb.

How I can reformat the tape?
P.S. The drivers were updated from manufacturer and Veritas.
I will update firmware right now

Thank you guys

[shweta_rege]

Hello,


-- You can format a tape only if it is supported by your Device


-- You can perform a quick erase on the tape.


Kindly refer the following Document for the same:


What is a quick erase / long erase and when should it be carried out?


http://support.veritas.com/docs/238752



Thank You,

Shweta