Re: Advanced Format drives + RAID5 + LVM + EXT4 = migraine

2010-08-30 Thread Jake Peavy
On Sun, Aug 29, 2010 at 3:06 PM, Robert Arkiletian wrote: > On Sun, Aug 29, 2010 at 10:08 AM, Jake Peavy wrote: > ... > > > > > > I have a feeling my array should perform much better than this and it's > > probably because I haven't taken the 4k sector size into account and I'm > > bleeding perf

Re: Advanced Format drives + RAID5 + LVM + EXT4 = migraine

2010-08-29 Thread Robert Arkiletian
On Sun, Aug 29, 2010 at 10:08 AM, Jake Peavy wrote: ... > > > I have a feeling my array should perform much better than this and it's > probably because I haven't taken the 4k sector size into account and I'm > bleeding performance. > > Can anyone comment?  If I need to take the 4k sector size int

Advanced Format drives + RAID5 + LVM + EXT4 = migraine

2010-08-29 Thread Jake Peavy
Hey all, I'm going a little off my rocker here trying to understand how to best configure a 3-drive RAID5 array using the new Western Digital 4k sector drives. I've got 3xWD15EARS (1.5T 4k sector advanced format drives). If I was using the drive as-is, my understanding is I should create a parti