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тАО10-16-2009 11:00 AM
тАО10-16-2009 11:00 AM
Performance on MSA1000
I am a trainee and i just started to work with SANs.
We got this MSA1000 with 4 Arrays, 2x2TB Raid5 consisting of 300MB Disks, 1x1.2TB same and 1x300GB Raid1.
The first point that seems kinda strange is the performance when reading from a single array, which is like 40-45 MB/s, that seems kinda really low to me.
And the second is that reading from multiple arrays doesn't reduce the performance on each array (going down to 35-40 MB/s).
Now i need a little hint what could cause a problem like that (if that is really a problem and not normal).
The MSA is connected to 3 different servers over FC with build-in FC-switch.
I know that i gave only very few information, but tbh i am not sure what would help.
Thx and regards
Tim
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тАО10-16-2009 11:17 AM
тАО10-16-2009 11:17 AM
Re: Performance on MSA1000
Firmware of MSA is 5.2
There are 4 arrays with a single logical drive on them each, already heard about the problem to have a single big array with several logical drives on them
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тАО10-19-2009 10:49 AM
тАО10-19-2009 10:49 AM
Re: Performance on MSA1000
Upload the show tech support from MSA.
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тАО10-20-2009 01:12 AM
тАО10-20-2009 01:12 AM
Re: Performance on MSA1000
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тАО10-20-2009 08:24 AM
тАО10-20-2009 08:24 AM
Re: Performance on MSA1000
How to assign points on this new forum? Click the Kudos Star!
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тАО10-20-2009 08:49 AM
тАО10-20-2009 08:49 AM
Re: Performance on MSA1000
The MSA1000? You must be kidding!
From the MSA1000 quickspecs Version 3 - December 14, 2001:
- the MSA1000 is a scaleable, high performance storage system built with investment protection in mind
- Performance - The MSA1000 and its components have been designed using the latest industry standard 2Gb/s interconnects and Fibre Channel technology. Performance tests indicate a data transmission rate of over 20,000 IOPS and bandwidth of 160 MB per second. (Single MSA1000 Controller)
OK, we know that can only be achieved by running special benchmarks and customers run real-world programs, not benchmarks ;-)
I agree that the MSA1000 is not the fastest box in the real world, but even the latest quickspec I have from 2007 does not contain the string "archiv" and I have _never_ heard this claim [archival storage] before.
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тАО10-20-2009 09:19 AM
тАО10-20-2009 09:19 AM
Re: Performance on MSA1000
Anyway, you gave the ADU report,I want you to connect the MSA serial cable to the controller and capture the following command:
show tech_support.
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тАО10-20-2009 09:21 AM
тАО10-20-2009 09:21 AM
Re: Performance on MSA1000
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тАО10-20-2009 09:27 AM
тАО10-20-2009 09:27 AM
Re: Performance on MSA1000
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тАО10-21-2009 01:47 AM
тАО10-21-2009 01:47 AM