> I'm wondering if anyone has tried using stride and
> stripe-width options when creating an ext4 filesystem on a
> hardware RAID5 array.

When I built a filesystem on a software RAID-5 partition, I used:

  https://raid.wiki.kernel.org/index.php/RAID_setup#Calculation

-scott
________________________________________
From: [log in to unmask] [[log in to unmask]] on behalf of Ken Teh [[log in to unmask]]
Sent: Tuesday, November 06, 2012 9:21 AM
To: scientific-linux-users
Subject: ext4 stride and stripe-width for a hardware RAID5

I'm wondering if anyone has tried using stride and stripe-width options when
creating an ext4 filesystem on a hardware RAID5 array.

Does it improve the performance of the array?

Should you create the filesystem directly on the partition?  What happens if
you create it on a logical volume that is created on the physical partition?

The LVM volume was created without options, ie, defaults.  I know LVM supports
stride and stripes as well but I dont know how they map to a physical RAID
device so I've never bothered with it.