Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On 07/07/16 07:16 AM, James Ault wrote: > > Here is a scenario: > > Two identical servers running RHEL 6.7, > Three RAID5 targets, with one Logical volume group and one logical > volume defined on top of each target. > A DRBD device defined on top of each logical volume, and then an XFS > file system defined on top of each DRBD device. > > The two identical servers are right on top of one another in the rack, > and connected by a single ethernet cable for a private network. > > The configuration works as far as synchronization between DRBD devices. > > We do NOT have pacemaker as part of this configuration at management's > request. What is the logic here? The only other viable option on EL6 is rgmanager. > We have the XFS file system mounted on server1, and this file system is > exported via NFS. > > The difficulty lies in performing failover actions without pacemaker > automation. Makes sense, given that pacemaker (and rgmanager) are resource managers. > The file system is mounted, and those status flags on the file system > are successfully mirrored to server2. What do you mean by "those status flags"? > If I disconnected all wires from server1 to simulate system failure, and > promoted server2 to primary on one of these file systems, and attempted > to mount it, the error displayed is "file system already mounted". How did you handle fencing? > I have searched the xfs_admin and mount man pages thoroughly to find an > option that would help me overcome this state. > > Our purpose of replication is to preserve and recover data in case of > failure, but we are unable to recover or use the secondary copy in our > current configuration. > > How can I recover and use this data without introducing pacemaker to our > configuration? Manually, or rgmanager. > Thanks for your help. > > -James Ault > > > _______________________________________________ > drbd-user mailing list > drbd-user at lists.linbit.com > http://lists.linbit.com/mailman/listinfo/drbd-user > -- Digimer Papers and Projects: https://alteeve.ca/w/ What if the cure for cancer is trapped in the mind of a person without access to education?