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rsh3ll1

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12 years ago

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rsh3ll1

3 Posts

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1351

June 20th, 2014 16:00

New Deduplicated LUN creation and Owner Changes

Hello,

We have a VNX5200 in which we are wanting to add two Deduplicated LUNs. In doing so, I have ran across a few items I am unsure on relating to the LUN creation as well as allocation ownership. I am fairly new to EMC products, so I will do my best to explain how we believe this process should be done.

Our goal is to create two Deduplicated LUNS in a storage pool. Currently, this pool has two non-deduped LUNs each owned by different SP's respectively (Allocation, Default, and Current).

Current.PNG.png

As I understand, we will want to ensure Deduplicated LUNs are owned by one SP and Non-Deduplicated LUNs on the opposing SP. Therefore, I would imagine for load balancing we would need to change the SP owners of one of the Non-Depuplicated LUNs to match the other Non-Deduplicated LUN in preparation for the creation 2 Deduped LUNs (ie. Tier 2 LUN to SP B).

SP Change.PNG.png

This is where I get a little bit confused:

  • In changing the SP owner of Tier 2 LUN 1, we can change the current owner and default owner, but the Allocation owner will stay the same. As I understand, this not how we will want it setup because the Allocation Owner is still SP A whereas the default owner and current owner is SP B . Thus, we would need to change the allocation owner as well?
    • To change the allocation owner I believe we would need to migrate the LUN 1 data to a new LUN that we create on SP B, so the Allocation owner is SP B.
  • In doing this, is the best way to migrate the data LUN Migration in Unisphere as opposed to Storage vMotion?
    • If LUN Migration, will the owners change to the new LUN owner information? (ie. Allocation Owner SP B)
      • Are there any manual process needed to be done in VMware to the datastore after the migration or is this seemless?

Our last step in the process would be to create the two Deduplicated LUNS on SP A, to satisfy best practices for Deduplication with the Deduplication Container.

Final.PNG.png

Thanks for any direction you can provide!