On Friday 22 of April 2011 16:19:48 you wrote: > On Fri, Apr 22, 2011 at 9:08 AM, Åukasz OleÅ <lukasz.oles@xxxxxxxxxx> wrote: > > Hi, > > > > I'm trying to tune Software Raid5, SCST and Windows Initiator to get best > > read/write performance. > > My first recommendation is to stick with blockio due to the raid5 > write hole possibility when using software raid. > > what windows version, and if not server2008, did you align the > partitions? (there's a 2003 and a 2008 R2) 2008 R2 > dd is going to use the initiator OS's cache, make sure your test file > size is 2x the ram in the initiator, if not the target too. On initiator I have 2GB RAM and I'm copying 20GB file. > Also xfs is much better at dealing with large files than ntfs. Best > apple to apples test is going to be on raw unformated partitions What this test(testing on raw partitions) can tell me? In the end I have to use filesystem. > I'm not familiar with BST5. I typically use iometer for both OS's. I will try it. -- Lukasz Oles -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
