Unsolved
This post is more than 5 years old
13 Posts
0
1302
May 31st, 2012 21:00
FAST VP and Storage vMotion - Maintain block distribution across tiers
Hi,
I had a thought about FAST VP and VMware storage vMotion, 2 scenarios
1, move a Virtual Machines VMDK on datastore1, to datastore2, in which both datastores reside in the same FAST VP storage pool.
2, move a Virtual Machines VMDK on datastore1, to datastore3, datastores reside on separate FAST VP storage pool.
And if you use VMware VAAI and VASA
Will the VM block distribution be maintained. ie, will the hot blocks remain hot and in the top tier, as below
or will they get moved to a lower tier, and then be promoted at a later date
Thanks
Mike
No Events found!
Jingyi1
2 Intern
•
199 Posts
0
May 31st, 2012 22:00
I can't recall there is any mechanism to track the VP distribution information on replicating a file between LUNs. My guess is the data will be copied to default tier the second Data Store is binding and moving to other tiers later.
mattcowger1
61 Posts
0
June 4th, 2012 14:00
The data will be copied to the default binding tier on the far side.
HOWEVER, with the recently announced 5876 code on Symmetrix, if you are using SRDF to replicate, then SRDF will update the target block distribution regularly to prevent it from being a problem.
No word yet on similar for Unified systems.
reseach
2 Intern
•
225 Posts
0
June 6th, 2012 00:00
vMovion is working with VMFS, which is on host file system layer. FAST VP move data block within an array based on static collection of data access.
They are running over two parallel, for now did not see any able make them work together.
But to your idea, I love it.