how to check remaining size of the tape

[Abhijit P.]

Hi all..

I want to know how much space is remaining on my tape after taking backup on it...

Thanks in advance

Abhijit

[Joseph Loo]

hi,

because of compression ratio to the tape, it is really not reliable to know the remaining space to the tape.

regards.

[Noel Miranda]

What utility have you used?
If you have used tar then take a tar tvf and calculate the no if blocks written(use awk to sum up the field). Knowing the total capacity of the tape, you can come to a conclusion about how much space is left on tape.

[Abhijit P.]

hi ..
thanks for early response ...

ya I am using tar only.So there is no other option other than calculating the blocks?

Thanks and regards,
Abhijit

[Noel Miranda]

I don't think so. But keep this thread open and check other responses.

[Abhijit P.]

ok thank you very much I will do so

once again thanks for ur quick response

Regards,
Abhijit

[Bharat Katkar]

Hi Abhijit,
I think u r from UWB...:)

Well i agree with Joseph that you can't really determine the space left on your Tape.
This is because say e.g. u have 40GB DLT drive and you have backed up 40 GB of data but still you will be able to write on the Tape depending on the Compression you are using.

So if you are using Omniback then u have a choice of vewing the Tape Usage and then calculate the approximate space available on the Tape.

Normally what i have seen is 40 GB DLT can hold data of around 85GB with compression.

Hope that helps.
Regards,

[Abhijit P.]

ok bharat thanks

but Idon't have omniback only using tar. ...

could you pls tell me what is that UWB