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hp ultrium 1x8 G2 AUTOLDR not using all free space on tape

David_87_
Occasional Contributor

hp ultrium 1x8 G2 AUTOLDR not using all free space on tape

Hello,

We currently using a hp ultrium 1x8 G2 AUTOLDR  with LTO3 800GB tapes. My backup sw is CA Arcserve.

We can't understand why the library during the backup occupy approximately only 300 Gb of tape space on the 800 Gb available.  How can is possible?!? Maybe the library can't correctly recognize the dimension of tape?

Thanks in advance

David

2 REPLIES
Torsten.
Acclaimed Contributor

Re: hp ultrium 1x8 G2 AUTOLDR not using all free space on tape

The LTO-3 tapes have a native capacity of 400GB.

800GB is a marketing value ...

Hope this helps!
Regards
Torsten.

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David_87_
Occasional Contributor

Re: hp ultrium 1x8 G2 AUTOLDR not using all free space on tape

Thanks for your reply Torsten,

This is my first experience with this hw and I'm just a bit confused about it

 

I have this kind of tape: http://img.misco.eu/resources/images/products//210/HWP/C7/C7973A/C7973A_14_1600x1600.jpg

 

The capacity of 800 Gb is specified on the tape, is not the real capacity available?

 

However: we can backup on the tape 300 GB, so 100 GB still missing... is there an explanation?