Cache drive not utilizing space properly.

[Marauder]

I setup a cache drive using a 500gb and 1tb SSD. I then set the data portion of the cache to be RADI0. On The main screen it shows 1.5tb size, but under used space when I hit 1tb the free space is 0. How can I correct this to have the proper 1.5tb of space?

 

[Marauder]

I  noticed another issue, I have the cache setup as Prefer. Though the drive is full, my current downloads have all failed. They're not being transferred over to the array, like they're supposed to. 

[JorgeB]

16 minutes ago, Marauder said:

How can I correct this to have the proper 1.5tb of space?

Raid0 can only use 1TB, change to single profile if you want the full 1.5TB.

[JorgeB]

10 minutes ago, Marauder said:

Though the drive is full, my current downloads have all failed.

Minimum size for cache and/or pool must be correctly set.

[Marauder]

1 minute ago, JorgeB said:

Raid0 can only use 1TB, change to single profile if you want the full 1.5TB.

Thanks, I'll switch it now, and see what happens. I saw the drive reporting as 1.5tb when I had it as raid0, so I thought it was right.

[Marauder]

2 minutes ago, JorgeB said:

Minimum size for cache and/or pool must be correctly set.

Thanks, again. I had Minimum free space: 0kb as the drive still had a 200kb of space left, I assume thats why it didn't trigger. So i corrected the free space min to 100mb.

 

[JorgeB]

5 minutes ago, Marauder said:

I saw the drive reporting as 1.5tb when I had it as raid0, so I thought it was right.

Used and free will be correct, total won't be for pools with different size devices.

[ChatNoir]

2 hours ago, Marauder said:

So i corrected the free space min to 100mb.

The free space is the amount of free space available BEFORE a new file is written.

 

For general caching, the general advice is to set it to something at least as large as the largest file you expect to transit to cache.

For file creation/downloading, its probably more complicated especially since files generally start at a size of 0B. In that case the pool is selected. If/when the file size increase after that it will continue to grow on cache. Not automagically move to the Array.