I am using HDID to create crash-consistent snapshots on a G370 with Thin Image. I want to mount those snaps back onto development hosts for testing, but for reasons I can't use any of the host or application agents. When I try to mount those snaps, however, I can choose only one host group. If I understand correctly, then, that means that my host group will have only one controller port and then only one path to my snapshots. How can I mount that snap to all of the ports on all of my development systems?
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What version of HDID are you using? In 6.7 an option was introduced to present the volume to multiple hostgroups. It is separate from the mount functionality in HDID, which performs "up stack" mount operations, but does address adding the snap to multiple host groups.
Thanks, John! I figured that at least one other person in the world would have tripped across this! I am running version 6.7.3.66230-R6.7 so, in theory, that functionality should be there, right? Do you know where I would find that presentation option if it's not with the "mount" function?
Thank you!- 1 person found this helpful
Bill --
Looks like I may have spoken too soon... If you are using an HDID Replication (including a "Refreshed Thin Image"), HDID will show you a "+" icon along with the mount/unmount options. That "+" is used to add to additional hostgroups. That is apparently not implemented for the Snapshot operator in HDID at this point. Sorry!
John
I was able to find a resolution to this. It seems like it could be made a little more intuitive, but if I create a replication using a Refreshed Thin Image (found in the "Replication" menu path, NOT in the "Snapshot" one for... some reason), this will allow me to add multiple hostgroups. It's still very clunky in that every time I go to mount the snap, I have to specify a hostgroup instead of it just using the list that I've already given it, but it does work. What I've done is put 3 of the four hostgroups in the "addition hostgroups" list and then specify the 4th during the mount operation.
I was able to find a resolution to this. It seems like it could be made a little more intuitive, but if I create a replication using a Refreshed Thin Image (found in the "Replication" menu path, NOT in the "Snapshot" one for... some reason), this will allow me to add multiple hostgroups. It's still very clunky in that every time I go to mount the snap, I have to specify a hostgroup instead of it just using the list that I've already given it, but it does work. What I've done is put 3 of the four hostgroups in the "addition hostgroups" list and then specify the 4th during the mount operation.