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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LEARN ABOUT DEBIAN
lssubsys
LSSUBSYS(1) libcgroup Manual LSSUBSYS(1)
NAME
lssubsys - list hierarchies containing given subsystem
SYNOPSIS
lssubsys [-m|--mount-points] [-M|--all-mount-points] [controller] [...]
lssubsys [-m|--mount-points] [-M|--all-mount-points] [-i|--hierarchies] [-a|--all]
lssubsys [-h|--help]
DESCRIPTION
lssubsys list the hierarchies containing the given subsystem(s). If no subsystem is defined, it displays all mounted hierarchies.
controller
defines the subsystem whose hierarchy is shown. If this parameter is not used, the command will list all mounted subsystems.
-m, --mount-points
Display mount points. Only the first mount points of shown hierarchies are displayed.
-M, --all-mount-points
Display mount points. All mount points of shown hierarchies are displayed, each on separate line.
-a, --all
Display all subsystems (including unmounted ones).
-i, --hierarchies
Display the attached hierarchy number if the subsystem is in a hierarchy. If the option -m is also used, the hierarchy number is
shown only for unmounted hierarchies.
-h, --help
Display help and exit.
EXAMPLE
The command lssubsys -am lists all subsystems which are present in the system, mounted ones will be shown with their mount point:
$ lssubsys -am
ns
cpuset
cpu,devices
cpuacct /cgroup/cpuacct
memory /cgroup/memory
freezer /cgroup/freezer
net_cls /cgroup/net_cls
The command lssubsys -ami lists all subsystems which are present in the system, mounted subsystems are listed with their mount points,
unmounted ones which are in a hierarchy are listed with their hierarchy number:
$ lssubsys -ami
ns
cpuset 5
cpu,devices 6
cpuacct /cgroup/cpuacct
memory /cgroup/memory
freezer /cgroup/freezer
net_cls /cgroup/net_cls
SEE ALSO
lscgroup (1), cgcreate (1), cgdelete (1), cgconfig.conf (5)
Linux 2009-11-05 LSSUBSYS(1)