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тАО11-28-2005 11:28 PM
тАО11-28-2005 11:28 PM
how to use all tape drives in MSL 6060
Hi all,
We have MSL 6060 tape library with 4 drives
We start backing up data with DATA PROTECTOR but we couldnt manage to use all the drives simultaneously. I mean how could I make the data protector to use all the drives in one job to accomplish the job faster.
Best regards
thanks
We have MSL 6060 tape library with 4 drives
We start backing up data with DATA PROTECTOR but we couldnt manage to use all the drives simultaneously. I mean how could I make the data protector to use all the drives in one job to accomplish the job faster.
Best regards
thanks
3 REPLIES 3
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тАО11-29-2005 12:59 AM
тАО11-29-2005 12:59 AM
Re: how to use all tape drives in MSL 6060
Hello!
Do you configured all drives within the operating system?
In Unix you should see that all the drives configured (/dev/rmt/0,/dev/rmt/1... )
and ioscan -fn shows this also ...
Second:
Please check your data protector license
that it is licensed to all the drives.
Third:
Did you see any Data Protector error message?
Regards:
Paul
Do you configured all drives within the operating system?
In Unix you should see that all the drives configured (/dev/rmt/0,/dev/rmt/1... )
and ioscan -fn shows this also ...
Second:
Please check your data protector license
that it is licensed to all the drives.
Third:
Did you see any Data Protector error message?
Regards:
Paul
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тАО11-29-2005 02:22 AM
тАО11-29-2005 02:22 AM
Re: how to use all tape drives in MSL 6060
Hi necdet,
What was your configuraton before?
Be sure that you have a 4 SAN drive license for HPUX
What was your configuraton before?
Be sure that you have a 4 SAN drive license for HPUX
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тАО12-01-2005 02:42 AM
тАО12-01-2005 02:42 AM
Re: how to use all tape drives in MSL 6060
Hello necdet,
check concurrency in the dataprotector backup spec. Concurrency overrides load balancing. If concurrency is set to 4 and load balancing is 5, but you have only 4 disk agents dataprotector will only use 1 drive. so lower concurrency if you have e.g only two objects/disk agents.
But beware, with 4 drives simultaniously the data will be spread over 4 tapes wich could increase restore time. And perhaps the drives are not in streaming mode.
regards.
Volker
check concurrency in the dataprotector backup spec. Concurrency overrides load balancing. If concurrency is set to 4 and load balancing is 5, but you have only 4 disk agents dataprotector will only use 1 drive. so lower concurrency if you have e.g only two objects/disk agents.
But beware, with 4 drives simultaniously the data will be spread over 4 tapes wich could increase restore time. And perhaps the drives are not in streaming mode.
regards.
Volker
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