Hi,
i was just crawling here in the Community about extents. I found lots of older post where all sayd: "Do not use extents, create a second Datastore".
I just found the Document VMFS Best Practices http://communities.vmware.com/docs/DOC-9276
Here I found the following conclusion: Page15 "It’s generally best to begin with a single LUN in a VMFS volume. To increase the size of that resource pool, you can add additional capacity by adding a new extent to the VMFS volume. This will add the additional LUN to an existing VMFS volume"
We are using VC 2.5 and ESX 3.5 machines.
So, what are u thinking about extents? Is it a high risk to use them? In our environment with shared customers, the VM´s of a customer are only allowed in a datastore that is reserved exclusively for that single customer. So it would be very unuseful to create a lot of datastores or having a big datastore unused for a long time.
Do you use extents?
Has anybody experience of loosing a LUN from a extent? What happened. Was the complete Datastore unusable, or only the parts of the extendt that were lost?
i was just crawling here in the Community about extents. I found lots of older post where all sayd: "Do not use extents, create a second Datastore".
I just found the Document VMFS Best Practices http://communities.vmware.com/docs/DOC-9276
Here I found the following conclusion: Page15 "It’s generally best to begin with a single LUN in a VMFS volume. To increase the size of that resource pool, you can add additional capacity by adding a new extent to the VMFS volume. This will add the additional LUN to an existing VMFS volume"
We are using VC 2.5 and ESX 3.5 machines.
So, what are u thinking about extents? Is it a high risk to use them? In our environment with shared customers, the VM´s of a customer are only allowed in a datastore that is reserved exclusively for that single customer. So it would be very unuseful to create a lot of datastores or having a big datastore unused for a long time.
Do you use extents?
Has anybody experience of loosing a LUN from a extent? What happened. Was the complete Datastore unusable, or only the parts of the extendt that were lost?
and have never experienced issues related to the use of them. ESX 2.x made it a little hazardous as the metadata was in only one place. ESX 3.x VMFS has metadata on every LUN and does only LUN-level locks instead of VMFS-level locks. My experience/advice:
