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тАО07-25-2007 01:55 AM
тАО07-25-2007 01:55 AM
We have a situation in which we assigned one CHIP (on each side) to a server. Just two disks on that server can generate max I/O at 8600 at a rate of 240 MB/sec. The data chunks are at around 32k and 98 percent reads.
Currently we are seeing CHIP utilization at over 75 percent.
Lastly, is there a calculator to determine how many CHIPs should be assigned based on throughput and workload? Is there an XP calculator or other utilities than can assist with workload calculation?
Thanks
Solved! Go to Solution.
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тАО07-25-2007 05:30 AM
тАО07-25-2007 05:30 AM
Re: XP 12000 front end thresholds
All I want to say that you can hit the bottleneck anywhere in the system:
- Host port IO handling
- Host port bandwidth
- Host port CHIP MPs
- HDD response
- Type of RAID (RAID6 is slowest, RAID5 is slower than RAID1)
Hope that helps.
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тАО07-25-2007 08:20 AM
тАО07-25-2007 08:20 AM
Re: XP 12000 front end thresholds
qvcc
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тАО07-25-2007 03:35 PM
тАО07-25-2007 03:35 PM
Re: XP 12000 front end thresholds
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тАО07-26-2007 07:34 AM
тАО07-26-2007 07:34 AM
Re: XP 12000 front end thresholds
Don't compare an enterprise storage with harddisks which can have straight answers for you.
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тАО07-26-2007 07:53 AM
тАО07-26-2007 07:53 AM
Re: XP 12000 front end thresholds
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тАО07-27-2007 01:49 AM
тАО07-27-2007 01:49 AM
Re: XP 12000 front end thresholds
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тАО07-29-2007 08:44 AM