Morning Gregory, Sunday, February 15, 2015, 6:42:32 PM, you wrote: > I am putting together a new mail server for [...] > I am using the default xfs file system on the other partitions. Is > there a way to expand the swap file? If not, then is this problem > sufficiently bad enough for me to start over with a new install. I do > not want to start over unless I need to. I think that on todays system, swap is just "the last resort" before a system crashes. If you ever run into the situation that you need the swap system, you will have to throw more memory into the machine. I wouldn't care. Btw., are you sure you want to use XFS for a mail server? I made some tests about a year ago and found that EXT4 is by the factor 10 faster compared to XFS. The tests I performed were using the "maildir" style postfix installation that results in many thousands files in the user directories. The only problem was that Centos was not able to format huge ext4 partitions out of the box. This was valid for C6, don't know about C7. best regards --- Michael Schumacher