Nimble Datastore Communication

[BulldogIT]

I am running vCenter 7.0.3, NCM 7.02ga, and Nimble OS 5.2.1, vCenter shows my datastore has 19.09TB used but the Nimble only sees 11.9TB used.  Why is there a discrepency?  

[a_p_]

Where exactly do you see the 11.9TB used?

vCenter Server shows the logical disk space usage, whereas the storage system most likely shows the physical usage, which can be much lower due to space saving features like dedup, compression, zero detection, ...

André

[BulldogIT]

When I look in the Nimble Web interface:

But in vCenter:

[a_p_]

That's what I expected.

vCenter Server (and ESXi) are not aware of the space savings on the storage system, but have to rely on the provisioned LUN (datastore) size.
From the vCenter Server perspective, a newly created thick provisioned 1 TB virtual disk will show 1 TB consumption on the datastore, although it may initially require only a few MB/GB on the storage system itself. The Nimble interface does show the physically used disk space, rather than the logically used space.

André

[alantz]

Its not so much as a discrepancy as it is a difference vendor view on how to present the size. its normal. 

--Alan--