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The_Saver

Equalise HDD and SSD usage by percentage

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Hello everyone,

 

I was wondering if it is possible to do the following.

The pool has a couple of SSD's and HDD's with varying sizes. The SSD's will be used to speed up the DrivePool, and the HDD's for capacity.

Whenever a new file is written to the pool it will be put on the SSD with the lowest % of its total capacity used.

After it has transferred, the file will be moved from the SSD to an HDD with the lowest % of its total capacity used.

 

Is it possible and how do I set it up?

Thank you :)

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It may have to do to with other balancers. If you have Volume Equalization and Duplication Space Optimizers active, they may need to be de-activated _or_ you need to increase the priority of the Disk Space Equalizer plug-in such that it ranks higher than the other two (but if you have StableBit Scanner, that one should always be #1 IMHO).

I have not actually used that plug-in myself though.

Edit: Did you activate e-measure though?

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On 8/5/2018 at 5:50 AM, The_Saver said:

I have tried using the plugin and setting the % option. I also have the SSD Optimiser plugin for setting the drives as SSD/Archive. However, it still just uses absolute number. Isn't that odd?

You'll need to disable the SSD Optimizer balancer.  

Do that, and see if it works (it should) 

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Thank you for the help.

I think the solution was to set the order of the plugins properly: image.png.7f9acf4b0379d8ea64b4f7175d5bead4.png

And then also went through my settings inside the plugins and changed some things which I cannot remember now.

Now I just need to rebalance the pool:

image.thumb.png.c669a21a98d5addfbd453387ea097f50.png

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1x128 SSD for OS, 1x8TB, 2x4TB, 2x2TB, 1x900GB. The 8TB and 1x4+1x2TB are in a hierarchical duplicated Pool, all with 2TB partitions so that WHS2011 Server Backup works. The other 4TB+2TB are in case some HDD fails. The 900GB is for trash of an further unnamed downloading client.So actually, a pretty small Server given what many users here have.

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