Cannot Increase ESX Datastore July 27, 2010Posted by General Zod in Tech, VMware.
It’s been a long time since I’ve experienced any noteworthy technical issues to talk about. However, I ran into the following problem this morning… so I thought I’d give it a mention.
One of my VMware datacenters has 3 stand-alone ESX Hosts which are used exclusively for project development. These 3 Hosts are NOT clustered, but they do share 2 common datastores.
Someone on one of the development teams is currently doing some testing with a couple of VMs that are hosting SMS… and each has 4 to 5 different VMDKs of varying sizes which sum up to approximately 250 GB per Host. (It’s insane… but it’s development, so what are you going to do?!)
Well, I needed to expand the size of both datastores this morning, so I had our SAN folks present a few additional LUNs to the Host servers. After rescanning the Storage Adapters, I could see the new LUNs with no problem. However, when I went to Increase the size of one of the datastores, I could not see any of them in the window.
I found it stranger still when I experienced the same issue after scanning the Storage Adapters on all 3 ESX Hosts, and attempted to expand the datastores from the Storage configuration of each Host.
Now I have absolutely no idea why this issue came about, and I still don’t. For all I know, a simple bounce of the ESX Hosts may resolve this issue… but I can’t confirm because I haven’t done that yet.
However, I did work around the problem. All I did was to login to the VI Client directly against one of the ESX Hosts using the ROOT account. From there, I was able to see the new LUNs and expand the size of my datastores successfully.