ExpressCluster X 3.1 for Linux Getting Started Guide - Nec

After start operating ExpressClusterExample 2:clusterpro: [I] Stopping mdx resource hasstarted.kernel: [I] NMPx holder 1. (before umount)clusterpro: [E] umount timeout. Make sure thatthe length of Unmount Timeout is appropriate. (Device:mdx):clusterpro: [E] Failed to deactivate mirrordisk. Umount operation failed.(Device:mdx)kernel: [I] NMPx holder 1. (after umount)clusterpro: [E] Stopping mdx resource hasfailed.(83 : System command timeout (umount, timeout=xxx)):When multiple mounts are specified for a resource like a mirror diskresource If, after activation of a mirror disk resource or hybrid disk resource, you have created anadditional mount point in a different location by using the mount command for the mirrorpartition device (/dev/NMPx) or the mount point (or a part of the file hierarchy for the mountpoint), you must unmount that additional mount point before the disk resource is deactivated.If the deactivation is performed without the additional mount point being unmounted, the filesystem data remaining in memory may not be completely written out to the disks. As a result,the I/O to the disks is closed and the deactivation is completed although the data on the disksare incomplete.Because the file system will still try to continue writing to the disks even after the deactivationis completed, I/O error messages like those shown below may be recorded.After this, an attempt to stop the mirror agent, such as when stopping the server, will fail, sincethe mirror driver cannot be terminated. This may cause the server to restart.Example:clusterpro: [I] Stopping mdx resource hasstarted.kernel: [I] NMP1 holder 1. (before umount)kernel: [I] NMP1 holder 1. (after umount)kernel: [I] NMPx close I/O port OK.kernel: [I] NMPx close mount port OK.clusterpro: [I] Stopping mdx resource hascompleted.kernel: [I] NMPx I/O port has been closed,mount(0), io(0).kernel: [I] - This message can be recordedon hotplug service starting when NMPx is not active.kernel: [I] - This message can be recordedby fsck command when NMPx becomes active.Section II Installing ExpressCluster141