RAID-5/Stripe Size and verifying absolute disk stripe access

2008-04-10 Thread Sten Daniel Soersdal
My problem is aligning reads/writes properly on a 3 disk RAID-5 volume with stripe size of 16384. Since my measurements all show the same relatively low read/write performance on the volume matter which offset i choose on the disklabel partition (i've tried with the granularity of a single

RAID 5 stripe size

2004-08-05 Thread H. Sandring
Dear list Is there an intelligent way of choosing the stripe size of a RAID 5 array? TIA zheyu ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]

Re: RAID 5 stripe size

2004-08-05 Thread Stijn Hoop
Hi, On Thu, Aug 05, 2004 at 03:02:25PM +0800, H. Sandring wrote: Is there an intelligent way of choosing the stripe size of a RAID 5 array? From man vinum: For optimum performance, stripes should be at least 128 kB in size: anything smaller will result in a significant increase in I/O activ-