iscsi network share + xfs

Hello,

we got a MD3000i used as a network share between two servers (say A and B). The problem we are facing is that file/directories created by server A are not visible on server B (and viceversa). It's not a problem with permission (chmod 777 doesn't help).

The MD3000i was at first used ony with server A. We then added server B. All files/directories added "before B" were readable from both A and .

Here are some details:

MD3000i

Read cache:                            Enabled  
  Write cache:                           Enabled  
     Write cache without batteries:      Disabled 
     Write cache with mirroring:         Disabled 
  Flush write cache after \(in seconds\):  10.00    
  Dynamic cache read prefetch:           Enabled

XFS filesystem.

On server A we have (from /etc/fstab)

/dev/disk/by-id/scsi-36a4badb000443c1c000003a04bf628a4-part1 /storage xfs noauto,nofail 0 0

Could be a problem with a combination of cache and xfs barriers?

---------- Post updated at 05:40 PM ---------- Previous update was at 02:28 PM ----------

Ok, solved.
filesystem xfs doesn't support clustering.:wall:

We need to use lock-aware fiesystem as OCFS, GFS or something.