W. Chris Shank on Tue, 28 May 2002 12:13:00 -0400 |
so there is no way of doing this to increase your write speed? > 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 ______________________________________________________________________ Philadelphia Linux Users Group - http://www.phillylinux.org Announcements-http://lists.phillylinux.org/mail/listinfo/plug-announce General Discussion - http://lists.phillylinux.org/mail/listinfo/plug
|
|