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03-14-2005 10:53 AM
03-14-2005 10:53 AM
BE turns off compression for SSL1016 tape unit
Is anyone getting more than 150 mb/min with the SSL1016 and Backup Exec?
I am running BE ver 9.1 with SP2, the SSL1016 tape library, and a 29160 SCSI HBA adapter. The best I get is 150 mb/min which is about 2.5 mb/sec. The specs on the tape unit are 3 mb/sec for uncompressed and 6 mb/sec for compressed. The problem is, I start each job with "compreesion checked" on the tape unit, in the software I select "Hardware compression otherwise none." When the job is done, I go and look at the tape unit and the compression is unchecked and the performance of the backup falls in line with the 3 mb/sec uncompressed.
Anyone have any idea why this unit is not doing a hardware compression and backing up at the 6 mb/sec rate?
I am running BE ver 9.1 with SP2, the SSL1016 tape library, and a 29160 SCSI HBA adapter. The best I get is 150 mb/min which is about 2.5 mb/sec. The specs on the tape unit are 3 mb/sec for uncompressed and 6 mb/sec for compressed. The problem is, I start each job with "compreesion checked" on the tape unit, in the software I select "Hardware compression otherwise none." When the job is done, I go and look at the tape unit and the compression is unchecked and the performance of the backup falls in line with the 3 mb/sec uncompressed.
Anyone have any idea why this unit is not doing a hardware compression and backing up at the 6 mb/sec rate?
1 REPLY 1
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03-14-2005 10:52 PM
03-14-2005 10:52 PM
Re: BE turns off compression for SSL1016 tape unit
Hello,
under following link u can find a list with recommendet HBA Adabters for several Drives
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=lpg50063
please write which drive is built in the lib ( SDLT or DLT !?)
use the L&TT and make a assesment test with compression 2:1 and have a look in the support-ticket
best regards
Michael Richter
under following link u can find a list with recommendet HBA Adabters for several Drives
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=lpg50063
please write which drive is built in the lib ( SDLT or DLT !?)
use the L&TT and make a assesment test with compression 2:1 and have a look in the support-ticket
best regards
Michael Richter
The opinions expressed above are the personal opinions of the authors, not of Hewlett Packard Enterprise. By using this site, you accept the Terms of Use and Rules of Participation.
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