On Jan 11, 2011, at 10:59 AM, Joshua Baker-LePain wrote: > On Tue, 11 Jan 2011 at 1:49pm, Digimer wrote > >> On 01/11/2011 01:47 PM, aurfalien at gmail.com wrote: >>> Hi all, >>> >>> I've a 30TB hardware based RAID array. >>> >>> Wondering what you all thought of using ext4 over XFS. >>> >>> I've been a big XFS fan for years as I'm an Irix transplant but >>> would >>> like your opinions. >>> >>> This 30TB drive will be an NFS exported asset for my users housing >>> home dirs and other frequently accessed files. >>> >> >> You will need XFS for a single partition that large. You won't be >> able >> to make such a large ext4 partition, I don't think. > > This is correct. While ext4 theoretically supports volumes (much) > larger > than 16TB, the developers don't think it's production ready yet and > the > userspace tools don't support it yet. > > So, short answer -- XFS is the only way to go. > My RAID has a strip size of of 32KB and a block size of 512bytes. I've usually just done blind XFS formats but would like to tune it for smaller files. Of course big/small is relative but in my env, small means sub 300MB or so. What would your XFS tuning params be for such an env? - aurf