Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Dear All, I worked for a week to set up a 640G HA file server. The application for accept users read/write is samba. When failover, secondary(now becomes primary) mounts the drbd disks to mount points and starts the smbd,nmbd. The smb.conf on both machines are same. So ordinary clients will not notice the failover(unless they are accessing files during failover and it is the primary machine fail). I notice there has tool CTH comes with the drbd0.7.4, but because I want to understand those scripts before I use them and the deadline for the fileserve is coming I decide to draft test cases myself. I would like to simulate the case that, the heartbeat between primary and secondary is still exist but it is only the disk in primary crash (bad sector or even read/write head fail). Therefore , I simulate it as follow : On the primary machine(with drbd0,drbd1 mounted), during copy a file from drbd0 to drbd1, kill the job related to drbd1 or drbd0(or even both drbd0 and drbd1). The person I work for accepts recopy the file if the primary server fail during the file access. But I wonder will the primary machine fail and become secondary if drbd0/drbd1 related job is kill in the middle of file read/write. Can any one give me some idea? Does on-error detach or on-error panic in drbd.conf can achieve this? Thanks in prior Seki Lau