VMware Cloud Community
mujmuj
Contributor
Contributor
‎10-13-2010 02:21 PM

ESXi 4.1 shared datastores on a SAN -- what is the max ESXi 4.1 servers you can have connecting to one LUN?

As the title says...

We have a Vsphere 4.1 environment with blades running ESXi 4.1. We are trying to have all the servers share all the LUNs that will host the datastores. Is there a maximum? Are there potential work-arounds? (ESX, hardware, software, etc?)

0 Kudos
2 Replies
Phokay
Enthusiast
Enthusiast
‎10-13-2010 04:55 PM

Try this on Google search:

site:vmware.com ESX configuration maximum

and check out the PDF.

0 Kudos
Josh26
Virtuoso
Virtuoso
‎10-13-2010 07:56 PM

You are likely to run into other limitations before this one.

For example, the largest datastore you can have is 2TB. If you had 128GB VMs, you would fit 16 VMs on the datastore.

If you had 8:1 consolidation (a conservative number), it would take two servers to run all VMs on that datastore. If you allowed a third for HA, there would be no benefit to allowing more than three servers access to a single LUN.

Many SANs have limitations around how many servers can map to a LUN also - check with your vendor.

0 Kudos