Re: thin provisioned LUN support & file system allocation policy

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jim owens wrote:
Ric Wheeler wrote:

The type of allocation that would help most is something that tries to keep the lower block ranges "hot" for allocation, second best policy would simply keep the allocated blocks in each block group hot and re-allocate them.

This block reuse policy ignores the issue of wear leveling...
as in most design things, trading one problem for another.

jim

Wear levelling is not a problem for all (most?) T10 unmap capable arrays since they remap pretty much everything internally,

Ric

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