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тАО06-07-2004 08:16 PM
тАО06-07-2004 08:16 PM
Data Compression TRU 64
Hi
I got MSL 6060 tape library with ultrium 2 drives ,with hardware compression enbaled on it .When i take backup thru veritas netbackup data centre on windows systems the compression is taking place correctly.But same thing is not taking place on TRU 64 operating system.The hardware compression is disabled automatically when i issue a tar command or start backup from veritas netbackup on TRU64.Can i know why the hardware compression is getting disabled on drives ?.
TIA
Srikanth
I got MSL 6060 tape library with ultrium 2 drives ,with hardware compression enbaled on it .When i take backup thru veritas netbackup data centre on windows systems the compression is taking place correctly.But same thing is not taking place on TRU 64 operating system.The hardware compression is disabled automatically when i issue a tar command or start backup from veritas netbackup on TRU64.Can i know why the hardware compression is getting disabled on drives ?.
TIA
Srikanth
2 REPLIES 2
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тАО06-07-2004 11:56 PM
тАО06-07-2004 11:56 PM
Re: Data Compression TRU 64
Hi,
Some tips for tape device files used with tar
tape0 :Default density
tape0c :Default density with compression
tape0_d0 :Density associated with entry 0 in /etc/ddr.dbase
tape0_d1 :Density associated with entry 1 in /etc/ddr.dbase
What is the device file you are using..?
Regards,
Some tips for tape device files used with tar
tape0 :Default density
tape0c :Default density with compression
tape0_d0 :Density associated with entry 0 in /etc/ddr.dbase
tape0_d1 :Density associated with entry 1 in /etc/ddr.dbase
What is the device file you are using..?
Regards,
I'll sleep when i am dead.
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тАО06-08-2004 04:03 AM
тАО06-08-2004 04:03 AM
Re: Data Compression TRU 64
Use the tape0_d1 device for enableing hardware compression.
on v5.x systems, use /dev/ntape/tape0_d1 and
on v4.x systems. use /dev/nrmt0h
on v5.x systems, use /dev/ntape/tape0_d1 and
on v4.x systems. use /dev/nrmt0h
No unix, no fun
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