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тАО06-07-2004 10:12 PM
тАО06-07-2004 10:12 PM
DLT 40/80 with Veritas Beckup Exec 8.5
1 server Compaq 5500 with Win2k SP4 and an internal Compaq DLT 40/80 fw 080; over this I have a Veritas Backup Exec 8.5. The problem is that I could only backup at about 37.3Gb of data even if the DLT says it could compress up to 80Gb; During the backup the COMPRESS led is on; How can I solve the problem in order to be able to backup up to 80 Gb?
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тАО06-07-2004 10:42 PM
тАО06-07-2004 10:42 PM
Re: DLT 40/80 with Veritas Beckup Exec 8.5
By default these DLT's are having hardware compression enabled but if you have to achieve the full 80GB capacity you need to enable the software compression.
See your backup software for enabling the software compression.
Regards,
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тАО06-07-2004 11:18 PM
тАО06-07-2004 11:18 PM
Re: DLT 40/80 with Veritas Beckup Exec 8.5
My software is set up with compression enabled (hardware, if enabled, otherwise software); my question is why is not compressing using my hardware if the COMPRESS led is on and the l&tt is saying that the compression is on for my dlt 40/80 drive?...
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тАО06-07-2004 11:26 PM
тАО06-07-2004 11:26 PM
Re: DLT 40/80 with Veritas Beckup Exec 8.5
If this is the case then i will advise you t try only with one type of compression.
BTW,
You can also elaborate this by just taking a tar backup of around 60-70GB on the DLt being H/W compression enabled.
Regards,
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тАО06-07-2004 11:31 PM
тАО06-07-2004 11:31 PM
Re: DLT 40/80 with Veritas Beckup Exec 8.5
Thx
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тАО06-08-2004 03:41 PM
тАО06-08-2004 03:41 PM
Re: DLT 40/80 with Veritas Beckup Exec 8.5
Assuming 2:1 Your tape drive is a native 40 gigs ... If you are backing up only executable or Zipped File ... You might be loosing capacity since the files are already compressed ...
If you backup lets say an Oracle Database ( Down not an online backup ) it's not rare to see a 8:1 compression .. So depending what kind of data you are backing up ... You might not be able to get the full 80 gigs ...
For more information Consult :
http://h10025.www1.hp.com/ewfrf/wc/genericDocument?dlc=en&lc=en&cc=us&docname=lpg50244&
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=lpg50030&prodTypeId=12169&prodSeriesId=330733&locale=en_US
This document will Explain how to configure your software for optimal speed ...
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=lpg50167&prodTypeId=12169&prodSeriesId=330733&locale=en_US
Best regards
Gilles