HPE Storage Users Group

48 SFF disks added to existing 8-shelves...admithw completed...is that it? Should we expect to see some sort of rebalance occur where now I have 54% of existing disks used, only 4% of new disks used which are free spare chunklets I believe, but that's it.

I will add that the day following the disk install, I ran a tunesys and didn't notice anything was done. That was about 5-days ago. Running again this morning, however, looks like it's actually trying to do some work.

Each chunklet need to be cleaned / zero'ed out before they are available for use by the system, so that may explain why tunesys didn't actually do anything initially.

Thanks JohnMH.

Be interested to know how long this tunesys takes please.

Is there a way to watch the progress of that and identify when it's actually worth running that tunesys?

Showpd -c -p -devtype FC

This shows the amount of chunks per drive, intialized, unitialized, free, used, etc. You could plot the table e.g. In excel. that way you have a visual overview of the balance.

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The goal is to achieve the best results by following the clients wishes. If they want to have a house build upside down standing on its chimney, it's up to you to figure out how do it, while still making it usable.

Rather than tunesys which must be run a lot of times before having nice results, we use tunevv.

You can also use showpdch -cng to monitor chunklet cleaning or showsys -space and look at the uninitialized number.

from what i've seen, that issue is finally fixed in 3.2.1
tunesys had some issues tuning R6 before that release.

_________________
The goal is to achieve the best results by following the clients wishes. If they want to have a house build upside down standing on its chimney, it's up to you to figure out how do it, while still making it usable.