07-09-2015 06:58 AM
Hello
I have questions about the usage of LVM with multipath on VC 6.2.
In our environnement we have :
The document say the diskreservation is not supported on multipath. Can someone just confirm me that ?
I would like to know if there something to replace diskreservation to prevent lun to be monted from 2 nodes in the same time in my situation.
I know I can use lvm tagging but I not sure it's really a good protection.
Any suggestion is welcome.
Regards
Mickael
Solved! Go to Solution.
07-10-2015 06:37 AM
Hi Mickael,
VCS does not support Disk Reservation for disks under LVM control. LVM tags can be used to prevent concurrent volume group activation, but will not protect from direct writes to the disk.
You can configure fencing using co-ordiantion point servers for arbitration but you would still risk on data protection.
Regards,
Sudhir
07-10-2015 02:34 AM
Hi,
I have used the LVM tagging Attribute in the past on a VCS+RHEL setup.
And it worked very good before.
Kind regards,
Sander
07-10-2015 06:37 AM
Hi Mickael,
VCS does not support Disk Reservation for disks under LVM control. LVM tags can be used to prevent concurrent volume group activation, but will not protect from direct writes to the disk.
You can configure fencing using co-ordiantion point servers for arbitration but you would still risk on data protection.
Regards,
Sudhir