We have a ESX 4.1 U1 and we should increase our Datastore to the maximum size, 2TB. Presently, the Datastore has 1.46T.
So I should create a LUN but I dont know the size and adding it to the Datatore to have the maximum size, near 2TB
How I could know the size of this new LUN ? 2TB - 1.46 ?
See the screenshot
thanks a lot
No need to work with extents anymore in ESX 4.0 and above. You can easily grow the exiting LUN to the maximum supported size of 2 TB minus 512 Bytes. All you have to do is to resize the LUN on your storage system and then use the Add Storage wizard to grow the datastore.
Caution: You have to be careful with the storage though. Make sure the LUN size stays below the maximum, otherwise it may not be usable! As a best practice, configure e.g. 1.98 TB instead of 2 TB.
PS: Assuming your storage system allows resizing the LUNs!
2 TB = 2048 GB
1.46 TB = 1495,04 GB
2048 - 1495,04 = 552,96GB
If you create the new LUN with 552,96 GB the datastore new size will have exactly 2TB. I had some problems when created 2048GB LUNs, so i recomend you to create the new LUN with 504,96 GB (2000 -1495,05), this way your datastore will have 1,95TB.