Happy holidays, friends. It's my first message in this list.
I have two 100% same servers with two logical drives - one for system and second one for DRBD primary-primary configuration. The servers connected via dedicated Gb NIC's via crossover cable. Operational system is Debian 7, file system for DRBD is OCFS2. Additionally I using NFS server to share a files from DRBD drive to other servers. The configuration is very simple. Just one resource with internal metadata. Nothing special.
But I have a problem and, unfortunately, I have no idea how to fix it.I using Node1 as primary and Node2 as secondary. I mean clients (web-servers) are connecting to Node1 via NFS, and backup's running on Node2. Example. I starting rsync on Node2 to sync a local folder with folder on the same server, but DRBD+OCFS2. It's working fine, but in backup time the NFS server on Node1 stop working till backup on Node2 is in progress. A NFS processes (threads) is on "D" state in top. After backups completed the NFS start working perfectly. Just for additional attention: I running rsync on Node2, but NFS stop working on Node1.
I will appreciate any idea what is wrong.. All settings is almost default, but problem is there :(
Sorry for my English. And thank you in advance. Happy holidays!
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