ESX 3.5 Large Lun

Hey guys I have an odd problem. Typically with my VM's my LUN's are 800gb or smaller. However I need to make a large File server of about 3tb. So I wanted to make a small OS and then a couple large VMDK files. So I created a large LUN on the SAN, presented it to the ESX farm and it see's the capacity as 3TB however it says Available 1.03tb

I've attached an image of what I see. Anyone shed any light on this ?
Brandon_VVP, Systems InfrastructureAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Paul SolovyovskySenior IT AdvisorCommented:
2TB is the max LUN size for ESX 3 and vSpehre 4
You only have a 2TB limit in ESX...even if when you add the disk/LUN you add it with 8MB block size (see Configuration Maximum Guide for more info: What you have to do is 1. create an extent, or 2. add 2 datastores/LUNs (1.5TB ea.).

Hope that helps.


Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
This will help if you want to do an 'extent':

2 TB is the Maximum LUN supported.  Also you should format the VMFS datastore with 8 MB block size oto allow a 2TB file( VMDK) size. However you can add other LUNs as an extent by clicking on "Increase size" from the properties of the  VMFS datastore. This will allow you to increase the size of your datastore up to 64 TB (maximum 31 extents).  (Note that even then single file size can not be more that 2 TB (means your virtual disk size can not be bigger than 2 TB)
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.