| Bill Jonas on Tue, 28 May 2002 12:06:59 -0400 |
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On Tue, May 28, 2002 at 08:54:51AM -0600, W. Chris Shank wrote: > ok, so i was right - but spelled wrong (unless your into that sort of > thing:^)? and because you are writing to 2 disks (half data to each), you > increase your effective data writing throughput - right? Actually, when you stripe data in a RAID configuration, you increase your throughput for reading and decrease your total throughput for writing. You have two drives working in parallel to read, so it goes faster. With writing, you have to wait for both drives to move the heads and turn the platters to the correct position, then you have to wait for the confirmation. With reading, the drives just send you data as fast as they can get it and the OS (if it's software) or the RAID card (if it's hardware) puts the bits into the correct order. -- Bill Jonas * bill@billjonas.com * http://www.billjonas.com/ "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." -- Benjamin Franklin Attachment:
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