Thanks for the pointer Steve, I am not sure how much of the changes considered RedHat and how much is Linux kernel changes so if another mailing list is more appropriate please let me know. I now see on RHEL7.0 that /var/lib/nfs/nfsdcltrack/main.sqlite is updated as I open a file from an NFS client, but going to RHEL7.2 that file is created but not updated with a new client open. Did something change in this area between 7.0 and 7.2 ? Marc. From: Steve Dickson <SteveD@xxxxxxxxxx> To: Marc Eshel/Almaden/IBM@IBMUS Cc: linux-nfs@xxxxxxxxxxxxxxx, Tomer Perry <TOMP@xxxxxxxxxx> Date: 07/05/2016 08:08 AM Subject: Re: HA NFS On 07/04/2016 07:53 PM, Marc Eshel wrote: > Hi Steve, > I did not pay attention for a while and now I see that since RHEL7.0 there > a major changes in NFSv4 recovery for a signal machine and for cluster > file system. Is there any write up on the changes like the use of > /var/lib/nfs/nfsdcltrack/main.sqlite, I see it being used in 7.0 but not > in 7.2. Any information would be appreciated. That file is still being used... but there were some changes. In RHEL 7.2 this was added for bz 1234598 commit c41a3d0a17baa61a07d48d8536e99908d765de9b Author: Jeff Layton <jlayton@xxxxxxxxxxxxxxx> Date: Fri Sep 19 11:07:31 2014 -0400 nfsdcltrack: fetch NFSDCLTRACK_GRACE_START out of environment In RHEL 7.3 there will be this for bz 1285097 commit d479ad3adb0671c48d6fbf3e36bd52a31159c413 Author: Jeff Layton <jlayton@xxxxxxxxxxxxxxx> Date: Fri Sep 19 11:03:45 2014 -0400 nfsdcltrack: update schema to v2 I hope this helps... steved. -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html