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09/22/2009 at 02:21PM PDT, ID: 24753144 | Points: 500
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choosing number of disks in a raid configuration

Asked by adimit in Hard Drives & Storage, Storage Technology, Computer Hard Drives

Tags: RAID 5, Hard disk drives

Hello

I wanted to choose an appropriate raid array for my application. In my application I will be storing 6kb of data every second. i need the data for 6 months, so this works out to 1.5 TB of data.

My vendor is offerring the following raid 5 configs
5 500GB 7.2k sas HDD on the local computer
6 450GB 15k sas hdd on a san
9 300GB 10k SAS HDD on local computer.

The raid controller is speced at 800kbps/second

If my main concern is throughput, with the ability to ensure that I have an availabe disk in case of hdd failure, then what is my best option? How do I calculate  throuhput? Is raid 5 my best option?
[+][-]09/22/09 02:47 PM, ID: 25397951

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[+][-]09/22/09 09:15 PM, ID: 25399973

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[+][-]09/23/09 05:47 AM, ID: 25402437

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[+][-]09/23/09 10:10 AM, ID: 25405469

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[+][-]10/08/09 04:42 AM, ID: 25524199

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[+][-]10/08/09 05:08 AM, ID: 25524406

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