Expansion of data store which is the best way?

Hi all

I want to help you on the extension of a data store. I have a HA cluster with three hosts (5.5 ESXi). the army actually share a single data store where all the virtual machines to run. the data store is created in a midsize V3700 storage ibm. the host is connected with the CF. But I want to extend the ability of the data store. I think that it is possible to do this in two ways:

-creation of a new volume of the midsize IBM and by mapping it to all the host then developing the data store for the new LUN (extension) created.

-expanding the existing volume of storage IBM midsize directely. While it is the ability to store data directely is increased.

I need your help because this cluster runs mission critical VMs. Also, I read in VMware documentation that it is not recommended to use more than one number of logic unit by the store of data that each data store should be in a separate logical unit number.

How would you propose?

Can you do the manipulation without stopping the virtual machines?

I'm not familiar with the storage system you use, but these storage systems are generally several controllers that can be owners of LUN presented to the hosts. With the help of only one data LUN/store you are actually 'wasting' performance, then you can consider to introduce a different unit number logic with the second controller of storage as the owner LUN and create a second data store for your virtual machines.

Regarding resizing datasore. With ESXi 5.5 there is no more need to use extensions, i.e. to present another logic unit number and add it to the existing data store to increase its size. You can simply increase the LUN size up to 64 ~ to, rescan storage on your ESXi host adapters and then increase the size of the data store in the Properties window.

André

Tags: VMware

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