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drbarker
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What is a changed block?...

Post by drbarker » Oct 30, 2009 7:19 pm

Just been thinking about this for a bit... In VMware's changed-block-tracking; what's a block?

Is it a VMFS block (which could be 1-8Mb)? Or a guest OS block? Or a variable length structure that could be any one of the above?

Gostev
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Re: What is a changed block?...

Post by Gostev » Oct 30, 2009 7:22 pm

No, definitely not VMFS block. I did calculated this a few weeks ago based on VM size and change tracking engine debug output, it was 256KB if I recall correctly.

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