There is no need to mirror, sync then un-mirror. You can:-
The migration phases will take a long time (same as a mirror and sync) but it's less prone to error. I'm assuming that the target disks are at least the same size as the source.
You may want to consider stopping the database and HA too, but test this elsewhere and see if you need to take services down. It might be fine as the OS maintains access to the LV even with updates happening. I'm just very cautious.
This will work only with ECC (enhanced concurrent capable) VGs. Shared VGs need RW-access on one (the active) node and RO-access on all the others. You can have that only with SCSI-3 (SCSI-2 would have disk reservations) and fast disk takeover, which means ECC. There are some storage systems, though, (for instance the EMC CLARiiON), which will not allow concurrent access to mirrors.
In such cases you have to mirror the volume group on the active node with classic AIX means, switch the primary mirror over to the other node during a downtime, do a "learning import" (importvg -L) and then restart the cluster.
Hi,
Anyone know how to check the progress of the HACMP C-SPOC mirror for the vg ?
I know there is lsvg -l <appvg>, it show the open/stale .. but I couldn't see the progress of it.
Your feedback is very appreciated.
Thanks. (2 Replies)
Hello Folks,
I´m a New Unix admin (by forceps) and I got a warning from one server saying:
Solaris Volume Manager: hostnamehere: metacheck: Report: Mon May 14 18:45:00 BRT 2012
--------------------------------------------------------------
metacheck: metadb problem, for more detail run:
... (2 Replies)
Hi Folks,
I am trying to make a script to assign all diskspace to slice 0, on multiple sized disks. Since the disks are new they may need to be labelled also to avoid the error: Cannot get disk geometry
Below is my code struggling with logic which doesn't seem to be producing the desired... (0 Replies)
I'm trying to figure if there are commands I can run as non-root/non-privileged users to figure out the number of disks. I know I can use format but it needs root. Any idea? (10 Replies)
Dear Friends,
I would like know what are FC related disks and how it will be viewed by generic OSes (Unix, Unix like, Windows & etc.)
AFAIK it is viewed by generic OS as SCSI.
Can we have FC related disks as internal storage(physically) of general purpose machine (Server / PC /... (1 Reply)
I have a HP proliant ML 570 G3 with two 146GB disk drives mirrored(RAID1+0)
windows server 2003 was installed on that disk.
I will add a disk.(scsi 300GB)
I will install Linux on that additional disk.
I want to create multiple-boot system.
Is it possible?
I wanna know how to create... (0 Replies)
I would like to know if I can move the disks from a V240 chassis into a V440 chassis to use the increased resources (CPU & Memory) to boost performance. I know you can move disks between V210/240 chassis's, but I'm not sure if this would work between 240s & 440s. Any help would be much appreciated. (4 Replies)