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тАО07-05-2004 07:41 PM
тАО07-05-2004 07:41 PM
VA7400 optimum performance
For my case we have one main enclosure ( 15 disks 0f 73 GB ) and one JBOD ( 5 disks of 73 GB).
VA7400 with dual controller and 512 MB RAM.
raid level is AUTORAID.
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тАО07-06-2004 06:53 PM
тАО07-06-2004 06:53 PM
Re: VA7400 optimum performance
In your case this is round 600GB allocated to LUNs.
To find out more about performance behavior of the VA7400 I suggest you have a look at the user guide (Product features)
http://h200005.www2.hp.com/bc/docs/support/SupportManual/c00088801/c00088801.pdf
and the attached performance whitepaper.
Cheers
Peter
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тАО07-06-2004 07:36 PM
тАО07-06-2004 07:36 PM
Re: VA7400 optimum performance
Thanks for your reply.
I attach some more data of VA7400, if you can look into this special case and advice.
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тАО07-06-2004 07:43 PM
тАО07-06-2004 07:43 PM
Re: VA7400 optimum performance
Peter
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тАО07-06-2004 07:50 PM
тАО07-06-2004 07:50 PM
Re: VA7400 optimum performance
it is a simple text file. You can save it to a local disk first.
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тАО07-06-2004 07:54 PM
тАО07-06-2004 07:54 PM
Re: VA7400 optimum performance
Please find attachment again.
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тАО07-06-2004 08:11 PM
тАО07-06-2004 08:11 PM
Re: VA7400 optimum performance
This means that a major part of your data has to be stored in RAID5DP which is not bad, but will affect performance when doing lots of small random writes.
In a read dominant environment or when you are writing large junks RAID5DP performs well.
If you want to improve the RAID01 / RAID5DP ratio, just add some more disks. The VA7400 will then migrate data to RAID01.
To find out the real RAID5DP allocation of your VA use Command View go to the performance tab, modify your view: select RAID1 and RAID5DP allocation option.
This will show the ratio.
Cheers
Peter
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тАО07-08-2004 10:16 AM
тАО07-08-2004 10:16 AM