DLT7000 capacity ???

[nandkumar4aix]

hi

does anybody knows what is the capacity of dlt7000 tapes.
As per my knowledge its 35GB. But while backing up on legato sometimes it exceeds the capacity and write up to 75GB which is strange.

do u hav any idea y its happening.

Thanks
nan aix sys admin
***************
nandkumarg@visto.com

 

[Voyager1]

Is the drive or software set for compression? I get the same results from my DLT7000 drivers (yes, 35gb is the native capacity). Have had no problems thus far... Bill
CNE, MCSE, CCNA, CCA, MCT, CCI, HBO

"Resistance is Futile, Negotiation is Irrelevent"

 

[Guest_imported]

hi,
I 've the same problem. i 've dlt8000 and till last week it is saving upto 80~110gb, but since last few days it is saving exactly 39gb. I am sure i had not changed any setting. i did only reclaiming the index space....

any ideas../ (networker 5.5.1

 

[MKMA]

Hey guys !!!

This is not a problem, it is a feature of the DLT7000 tape drives.
It uses the DLTtape IV which has a capacity of 35GB/70GB(assuming 2:1 compression) when used with a DLT7000.

The DLT7000 uses a compression by itself, When I use it in backing up unix file system, it compresses the data with a ratio of 43% (it depends according to the DLT what ratio to compress with) but it should not exceed 70GB as Nandkumar said
Any way, don't worry and have fun

Eshta!!

MKMA