on 4/19/2011 11:16 AM Scott Silva spake the following: > on 4/19/2011 10:42 AM Matt spake the following: >> On a running 64 bit CentOS 5.6 box is it possible to convert from Ext3 >> to Ext4 to improve performance? Right now I can deal with a few hours >> of downtime on it. This is an email server with lots of I/O due to >> seek time. Software RAID1 as well. Will Ext4 offer much of an >> improvement? > http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/96/html/Migration_Planning_Guide/ch03s02.html I know it is for RH 6, but probably sound advice.