Hi all,
I cannot create a datastore in my vSphere 4.1 client.
When I start to create the datastore, I get this error, notice how it also says that the harddisk is blank - it is also mis-reporting the size of the disk as 250GB - should be 3.4TB
I can get past this by pressing back, then next but after I enter a DataStore name, this error comes up:
I have no idea why this is, I have also tried it on several other client machines, all display the same errors - I have attached two error logs in the hope that someone will be able to shed some light on this.
Thanks
K
As mentioned, LUNs presented to the ESXi host need to be <= 2TB minus 512 bytes in order to work as expected. For the reason of this limitation see http://kb.vmware.com/kb/3371739
Alternatively you may consider to upgrade to ESXi 5.0, which supports LUNs with up to 64TB.
André
2TB limit on 4.1
Hi JohnADCO,
I did not know that but it shouldn't matter.
I have previously created DataStores in this manner before without seeing this error, the client has not given me the opportunity to specify how large the DataStore is yet either...
K
Put the size as 1.9TB, I'll bank it works.
Thanks for your reply,
I have not been given the option to enter any capacity information yet so I don't have that option....
K
At the lun level......
You can't give 4.1 anything bigger than 2TB subtracting like 512bytes are something like that.
As mentioned, LUNs presented to the ESXi host need to be <= 2TB minus 512 bytes in order to work as expected. For the reason of this limitation see http://kb.vmware.com/kb/3371739
Alternatively you may consider to upgrade to ESXi 5.0, which supports LUNs with up to 64TB.
André
Just to add on to what already has been said, when you present a lun that is greater then 2 TB, the free space shown is going to be the last amount of available space less all of the 2 TB 'chunks' of data. For example if you have a 7.2 TB lun you presented it will be 1.2TB that is shown. If you want to go above a 2 TB datastore you will have to use a physical mode RDM. Remember though that you will still be limited to 2 TB per VMDK.
I wrote a little more about it here:
http://www.seancrookston.com/2011/09/19/what-happens-with-vmfs-luns-greater-then-2-tb/
scrookston wrote:
I wrote a little more about it here:
http://www.seancrookston.com/2011/09/19/what-happens-with-vmfs-luns-greater-then-2-tb/
thanks for the write up.