Re: raid stripe size vs performance

2009-08-26 Thread Dave Stevens
Which is fine for read-only use, while it may hurt your write. Also note that many controllers use the term raid-10 when they really mean raid 1+0 which isn't the same at all as Linux software raid-10. That's news to me Bill, and I'm thinking of setting up a F11 raid 10 system. Can you refer

Re: raid stripe size vs performance

2009-08-26 Thread Adam Hough
Wikipedia has a decent write up of how the Linux MD RAID 10 works. http://en.wikipedia.org/wiki/Non-standard_RAID_levels#Linux_MD_RAID_10 Linux MD RAID10 (RAID10) implements a general RAID driver that defaults to a standard RAID 1+0 with four drives, but can have any number of drives. MD RAID10

Re: raid stripe size vs performance

2009-08-26 Thread Aldo Foot
On Thu, Aug 20, 2009 at 1:43 PM, Phillphanb...@yahoo.com wrote: I'm rebuilding a RHEL 5 server used primarily for building code. It has perc 6i controller and I'm installing 6 15K sas drives. The plan is to setup a raid 10 configuration for improved performance. Does anyone know if I can

Re: raid stripe size vs performance

2009-08-21 Thread Bill Davidsen
Sharpe, Sam J wrote: 2009/8/20 Pasi Kärkkäinen pa...@iki.fi: On Thu, Aug 20, 2009 at 01:43:27PM -0700, Phill wrote: I'm rebuilding a RHEL 5 server used primarily for building code. It has perc 6i controller and I'm installing 6 15K sas drives. The plan is to setup a raid 10 configuration for

Re: raid stripe size vs performance

2009-08-20 Thread Sharpe, Sam J
2009/8/20 Pasi Kärkkäinen pa...@iki.fi: On Thu, Aug 20, 2009 at 01:43:27PM -0700, Phill wrote: I'm rebuilding a RHEL 5 server used primarily for building code. It has perc 6i controller and I'm installing 6 15K sas drives. The plan is to setup a raid 10 configuration for improved performance.