What do you mean by "the system cannot recognize the disks"? Do you mean the OS loses visibility to the data in the SAN? Disconnecting the fiber cable should not prevent the OS from recognizing the volume presented by Powerpath.
Would anyone know why a V440 Solaris 9 machine's interfaces (ce0 and ce1)
will not failover?
Both interfaces are on the same subnet, but different IPs. I can pull the plug on once interface (ce0) and ce1 will be accessible. I can reverse it and pull ce1, and ce0 will NOT be accessible. ... (5 Replies)
We are looking at running MPIO for it's redundancy and load balancing benefits. Does anyone know what pieces of software or modules are needed on the VIO server to get load balancing to work. Remember we are using EMC's DMX3500 storage system. We no longer want to use Powerpath. :rolleyes: ... (2 Replies)
Hi,
I have 3 directories (/1 /2 and /3) with same contents and want to achieve fail over among them.
The Solution i thought of:
1. link /data to /1 (and provide users with /data to access)
2. CRON a script (to run every minute) to verify if /1 exist or not, if it does not exist (or its... (3 Replies)
All,
I am looking to setup a simple IP failover setup, but it seems every place i look has some difficult setup like pacemaker or LVS.
I only want to handle the IP piece to failover a VIP.
Any suggestions? I checked out keepalived and that my work for me. (4 Replies)
How to failover the cluster ? GNU/Linux
By which command,
My Linux version
2008 x86_64 x86_64 x86_64 GNU/Linux
What are the prerequisites we need to take while failover ?
if any
Regards (3 Replies)
I'm trying to auto-mount EMC Symmetrix BCV device at boot.
but having problem making BCV available.
I put script called mkbcv to the inittab and engineer suggested to add
120 sec sleep between cfgmgr so I did that also.
My mkbcv script seems to be working fine, it says "hdisk4 Available" ... (1 Reply)
Discussion started by: shuhei365
1 Replies
LEARN ABOUT CENTOS
vgscan
VGSCAN(8) System Manager's Manual VGSCAN(8)NAME
vgscan - scan all disks for volume groups and rebuild caches
SYNOPSIS
vgscan [-d|--debug] [-h|-?|--help] [--ignorelockingfailure] [--mknodes] [-P|--partial] [-v|--verbose]
DESCRIPTION
vgscan scans all SCSI, (E)IDE disks, multiple devices and a bunch of other disk devices in the system looking for LVM physical volumes and
volume groups. Define a filter in lvm.conf(5) to restrict the scan to avoid a CD ROM, for example.
In LVM2, vgscans take place automatically; but you might still need to run one explicitly after changing hardware.
OPTIONS
See lvm(8) for common options.
--mknodes
Also checks the LVM special files in /dev that are needed for active logical volumes and creates any missing ones and removes unused
ones.
--cache
Scan devices for LVM physical volumes and volume groups and instruct the lvmetad daemon to update its cached state accordingly.
SEE ALSO lvm(8), vgcreate(8), vgchange(8)Sistina Software UK LVM TOOLS 2.02.105(2)-RHEL7 (2014-03-26) VGSCAN(8)