[CentOS] compare zfs xfs and jfs o

Sun Aug 5 01:47:04 UTC 2012
SilverTip257 <silvertip257 at gmail.com>

One disadvantage I've seen with XFS is that you cannot shrink [0] the
file system.
For a box dedicated to network storage this shouldn't be a problem.
But in my instance I made /var a bit too large and needed to reclaim
space for /.

[0] http://xfs.org/index.php/Shrinking_Support

//  SilverTip257  //

On Sat, Aug 4, 2012 at 4:12 PM, John R Pierce <pierce at hogranch.com> wrote:
> On 08/04/12 7:01 AM, ashkab rahmani wrote:
>> hello
>> i have 16tb storage. 8x2tb sata raided.
>> i want to share it on network via nfs.
>> which file system is better for it?
> we are using XFS with CentOS 6.latest on 80TB file systems, works quite
> well.   handles a mix of many tiny files and very large files without
> any special tuning.
> Theres one big issue with NFS that requires a workaround... XFS requires
> 64 bit inodes on a large file system ('inode64'), and by default, NFS
> wants to use the inode as the unique ID for the export, this doesn't
> work as that unique ID has to be 32 bits, so you have to manually
> specify a unique identifier for each share from a given server.   I
> can't remember offhand what the specific option is, but you can specify
> 1, 2, 3, 4 for the share identifiers, or any other unique integer.  if
> you only export the root of a file system, tis is not a problem.   this
> problem is squarely an NFS implementation problem, that code should have
> been fixed eons ago.
> --
> john r pierce                            N 37, W 122
> santa cruz ca                         mid-left coast
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