Re: [CentOS] atime, relatime query

On 2/3/2010 2:45 PM, nate wrote:

Rajagopal Swaminathan wrote:

...

But in a production db server, which is backed up by HP DP, is it advisable to mount with noatime?

noatime typically helps when dealing with lots of files, most DB servers have a small number of files that are large in size, so noatime is likely not to provide any noticeable improvement I think.

On the other hand you are unlikely to miss it on most filesystems, especially any that you back up with a file-oriented mechanism like tar or rsync. The only time it matters is for rare apps like a mail client that might try to notify you when your mailbox has been written more recently than the last read.