skumflum wrote:
I am trying to convert a volume from dedup v2 to v3 but there is something I don't understand about the space utilized.
I am first converting it to TVV and then to TDVV on another CPG.
I used showvv -r to find out how much RAW space it used before and after. And the space used is increased by 50%.
I am skeptical about this large increase, but I know that the dedup ratio won’t be great as I only have done this with a few volumes
However I would like to get the math right. Can I somehow find the dedup ratio on a specific volume?
Thank you
I will try to explain in another way.
Showvv -r RawRsvd shows the actual RAW space the VV has reserved right?
I moved a volume from a CPG with dedup v2 R5 7+1 to another CPG R6 12+2 with dedup v2.
I did the following:
1. Converted it to thin
2. Moved it the other CPG
3. Converted it back to dedup
The volume RawRsvd was: 1429650
After the convertion it is: 2209498
I don’t get that. R5 7+1 and R6 12+2 should have the same space penalty. My guess would be that it dedups with less efficiency and that’s why I asked for dedup stats pr. Volumes. However, it may be something else.
How would you monitor the space used when taking on this task?