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тАО01-31-2006 11:49 PM
тАО01-31-2006 11:49 PM
EVA4000 2C2D + A7388A low performances...
I'm using robocopy to make these tests.
Here is the configuration and the results:
EVA4K 2C2D
Source Volume: Vraid5: 30GB unit K:
Target Volume: Vraid1: 30GB unit H:
Diskgroup: 16 x 72GB 15K FC drives;
W2K server + LP1050 (A7388A: driver version 5.5.20A9) + MPIO version 1 software;
HP SAN Switch 2/8 (2 Fabrics);
MPIO Policy Time Ransfer Rate
Round Robin 1:57 2.25GB/min
None 1:57 2.25GB/min
SQR 1:54 2.36GB/min
SQST 1:54 2.36GB/min
Thanks in advance for your help.
Regards,
Jacques
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тАО02-01-2006 12:33 AM
тАО02-01-2006 12:33 AM
Re: EVA4000 2C2D + A7388A low performances...
It is certainly not valid for measuring MB/s throughput !!
If you copy data within a disk group, you are causing lots of head movement.
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тАО02-01-2006 12:42 AM
тАО02-01-2006 12:42 AM
Re: EVA4000 2C2D + A7388A low performances...
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тАО02-01-2006 12:45 AM
тАО02-01-2006 12:45 AM
Re: EVA4000 2C2D + A7388A low performances...
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тАО02-09-2006 03:01 AM
тАО02-09-2006 03:01 AM
Re: EVA4000 2C2D + A7388A low performances...
you can simulate all type of access you want, ramdom to sequancial, read to Write, any size of blocks.
And remember one thing, The performance of an EVA depends moslty on the number of disk in the disk Group. The more you have, the best it works.
best regards,
Louis-Marie.
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тАО02-09-2006 04:50 AM
тАО02-09-2006 04:50 AM
Re: EVA4000 2C2D + A7388A low performances...
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00371210/c00371210.pdf
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тАО02-09-2006 10:59 PM
тАО02-09-2006 10:59 PM
Re: EVA4000 2C2D + A7388A low performances...
If you need realy fast storage consider about SolidStateDisk.
www.superssd.com
Once we install RAMSAN120 at one customer and time for calculation was droped from 10 hours to 46 minutes. We put only undotablespace on SSD disk, not entire Oracle database.