Good evening everyone!

 

I have 2 x 275GB Crucial SSD drives for my cache pool and I'm running short on space. I have a 128GB sitting at my desk and am wondering if I can add it to the pool? I assume that I will not get the full 128GB but will it allocate maybe half of that?

 

Thanks for the guidance, I'd rather not have to purchase two new 512GB or larger. 

2 hours ago, Kash76 said:

I have a 128GB sitting at my desk and am wondering if I can add it to the pool?

You can but you'll only get an extra 64GB if using the default raid1.

You can but you'll only get an extra 64GB if using the default raid1.

Thanks. I'll assume the same if I bite on a 512, I'd get half or less because of the increase?

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You'll get an 256GB extension, you can use this to calculate what you'll get:

 

http://carfax.org.uk/btrfs-usage/