Well, actually, it may have to write it twice, but each individual write happens faster because it is written to a stripe. -----Original Message----- From: tclug-list-bounces at mn-linux.org [mailto:tclug-list-bounces at mn-linux.org] On Behalf Of Garrett Krueger Sent: Wednesday, August 18, 2004 3:28 PM To: TCLUG Mailing List Subject: Re: [TCLUG] OT Storage Solutions A server can also run into write performace woes with RAID 0+1 because of the mirroring aspect slowing it down by needing to write the same thing twice (although read performance is typically enhanced due to multiple identical data sources). > Raid 0+1 is your best best. Requires 8 drives to get the amount of > storage you are looking for though. RAID-5 has poor write performance, > actually a bit worse than just a single disk because it needs to > calculate parity before writing it. > > If you're using it as a scratch disk though, you can probably just get > by with a stripe. Just make sure you have your important stuff backed > up elsewhere. > > -jay > > On Aug 18, 2004, at 1:39 PM, Garrett Krueger wrote: > >> Striping by itself is probably a bad idea since, if one drive fails, >> you'll be up the proverbial creek (/w no paddle). You might wish to >> look >> at one of the other RAID solutions such as RAID 1 or RAID 5 which will >> offer some fault tolerance. >> >>> I am helping a friend build a system that will be used for video >>> editing. It needs to have 1TB of storage and would like to make sure >>> I'm >>> not missing any options. I am currently planning on getting four 250MB >>> hard drive and stripping them in an array. >>> >>> I am also curious on the best case and power supply for such a setup. >>> The system will be a dual processor computer. >>> >>> I know there are some storage experts out there. >>> >>> thanks in advance, >>> jason reynolds >>> >>> _______________________________________________ >>> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota >>> Help beta test TCLUG's potential new home: http://plone.mn-linux.org >>> Got pictures for TCLUG? Beta test http://plone.mn-linux.org/gallery >>> tclug-list at mn-linux.org >>> https://mailman.real-time.com/mailman/listinfo/tclug-list >>> >> >> >> >> _______________________________________________ >> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota >> Help beta test TCLUG's potential new home: http://plone.mn-linux.org >> Got pictures for TCLUG? Beta test http://plone.mn-linux.org/gallery >> tclug-list at mn-linux.org >> https://mailman.real-time.com/mailman/listinfo/tclug-list > > > _______________________________________________ > TCLUG Mailing List - Minneapolis/St. Paul, Minnesota > Help beta test TCLUG's potential new home: http://plone.mn-linux.org > Got pictures for TCLUG? Beta test http://plone.mn-linux.org/gallery > tclug-list at mn-linux.org > https://mailman.real-time.com/mailman/listinfo/tclug-list > _______________________________________________ TCLUG Mailing List - Minneapolis/St. Paul, Minnesota Help beta test TCLUG's potential new home: http://plone.mn-linux.org Got pictures for TCLUG? Beta test http://plone.mn-linux.org/gallery tclug-list at mn-linux.org https://mailman.real-time.com/mailman/listinfo/tclug-list _______________________________________________ TCLUG Mailing List - Minneapolis/St. Paul, Minnesota Help beta test TCLUG's potential new home: http://plone.mn-linux.org Got pictures for TCLUG? Beta test http://plone.mn-linux.org/gallery tclug-list at mn-linux.org https://mailman.real-time.com/mailman/listinfo/tclug-list