10-06-2013
How to mount a shared LUN between two hosts?
i had bunch of luns from storedge 3310 mounted on a T2000 and being used. Then i added a second T2000 to the storage array but
now i cant mount them on either nodes , i do see them in format though.
these luns have data on them and they were mounted on one so how do i mount them read/write on both nodes without loosing data ?
thanks
---------- Post updated at 12:22 PM ---------- Previous update was at 11:58 AM ----------
working now .. it had changed the controller id for the luns , after correcting the controller id i ccan mount thee luns on both nodes
Last edited by aliyesami; 10-06-2013 at 01:06 PM..
Reason: corrected for error
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MOUNT(2) System Calls Manual MOUNT(2)
NAME
mount, umount - mount or umount a file system
SYNOPSIS
#include <unistd.h>
#include <sys/mount.h>
int mount(char *special, char *name, int flag)
int umount(char *name)
DESCRIPTION
Mount() tells the system that the file system special is to be mounted on the file name, effectively overlaying name with the file tree on
special. Name may of any type, except that if the root of special is a directory, then name must also be a directory. Special must be a
block special file, except for loopback mounts. For loopback mounts a normal file or directory is used for special, which must be seen as
the root of a virtual device. Flag is 0 for a read-write mount, 1 for read-only.
Umount() removes the connection between a device and a mount point, name may refer to either of them. If more than one device is mounted
on the same mount point then unmounting at the mount point removes the last mounted device, unmounting a device removes precisely that
device. The unmount will only succeed if none of the files on the device are in use.
Both calls may only be executed by the super-user.
SEE ALSO
mount(1), umount(1).
AUTHOR
Kees J. Bot (kjb@cs.vu.nl)
MOUNT(2)