Hi
I have setup an Linux cluster(failover) with LVM DiskGroup and LVMLogicalVolume. This setup works fine for sometime, but after that the DiskGroup goes offline automatically. vgdisplay says that the diskgroup is exported. Another issue is that, once this DG goes offline, LVMLogicalVolume remains in the online state and there is no way to make it offline. I have seen this issue both with SAN and iSCSI setup. I am using NetApp filer for storage.
Here is the main.cf entries for DG and volume
LVMLogicalVolume dfm_vol (
LogicalVolume = vcs_lun_SdHv
VolumeGroup = vcs_lun_SdDg
)
LVMVolumeGroup dfm_dg (
VolumeGroup = vcs_lun_SdDg
)
Mount data_mount (
MountPoint = "/vcs_lun"
BlockDevice = "/dev/mapper/vcs_lun_SdDg-vcs_lun_SdHv"
FSType = ext3
FsckOpt = "-y"
)
Is there any special configuration to avoid this problem?