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тАО12-11-2003 08:55 AM
тАО12-11-2003 08:55 AM
Modular Smart Array 500 System
I plan to purchase the Modular Smart Array 500 System to attach to my HP integrity rx4640. And I was wondering to achieve the best I/O performance should I go with four 70gb HD or should eight 36gb HD, or perhaps it does not make a difference.
2 REPLIES 2
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тАО12-12-2003 04:20 AM
тАО12-12-2003 04:20 AM
Re: Modular Smart Array 500 System
Cesar:
You don't say if you are considering the 10k or 15k disks: I'll assum you are comparing alternatives of the same speed (e.g 4 x 72Gb @ 15k or 8 x 36Gb @ 15k)
In general you will get better performance out of more disks (not GENERAL). Basically you have more physical arms moving & getting to the data quick on more, smaller, disks. However, clearly, more smaller is more expensive: 4 x 72Gb 15k (or 10k) would be quite good, particular if you fully utilise the various RAID options for speed & resilience.
Hope that helps
Eric
You don't say if you are considering the 10k or 15k disks: I'll assum you are comparing alternatives of the same speed (e.g 4 x 72Gb @ 15k or 8 x 36Gb @ 15k)
In general you will get better performance out of more disks (not GENERAL). Basically you have more physical arms moving & getting to the data quick on more, smaller, disks. However, clearly, more smaller is more expensive: 4 x 72Gb 15k (or 10k) would be quite good, particular if you fully utilise the various RAID options for speed & resilience.
Hope that helps
Eric
The world is divided into 10 types of people: Those who understand binary and those who don't
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тАО12-12-2003 04:37 AM
тАО12-12-2003 04:37 AM
Re: Modular Smart Array 500 System
Thanks, that is what i figure but I just wanted to confirm.
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