I think ext3 is a bit slow on so big LUNS, try xfs or similar?
there is no official support for xfs in RHEL5, so that is not an option. Besides, I'm talking about a drop of >150mb/s to ~10mb/s read performance when cracking the 2.2T size. This is clearly not in the ext3 (or FS for that matter) magnitude of performance issues. Also, numbers stay the same when dd'ing on the raw device (LUN).
-Jens
Eero Volotinen eero.volotinen@iki.fi Sent by: centos-bounces@centos.org 07/14/2010 11:35 AM Please respond to CentOS mailing list centos@centos.org
To CentOS mailing list centos@centos.org cc
Subject Re: [CentOS] GPT Partitions >2.2T with Centos 5.5