I have two 250GB SSDs that I wanted to set up as Cache Devices. Looking at the screenshot, I'm not sure they are set up correctly. Why is there no Temp for the first Cache? And, why is there no FS, Size, Used, or Free info for Cache 2?

Cache2 is a mirror of cache1.

Is that the way most folks set up their cache?

Great idea to have the 2nd cache drive as a mirror of the first cache.

Unless I missed something the problem remains that when the cache dies no one has a procedure for restoring and installing a new cache. The only forum postings have been a nightmare of failures

Great idea to have the 2nd cache drive as a mirror of the first cache.

Unless I missed something the problem remains that when the cache dies no one has a procedure for restoring and installing a new cache. The only forum postings have been a nightmare of failures

 

I’m not using a cache pool at the moment, and agree that we need more documentation, but a little while ago I used my test server to see how cache pool worked and to simulate a cache drive failure and it was all pretty straight forward.

 

Used 2 x 250GB disks

 

Replaced the cache disk2 (250GB) with a new one (500GB), assigned new cache disk and after starting array cache data was duplicated, didn’t need to do anything else.

 

To confirm data was rebuilt unplugged cache disk1 and confirmed cache data was on new disk2.

 

Then replaced cache disk1 (250GB) with smaller disk (160GB), assigned to cache disk1, started array and pool was again rebuilt, confirmed data was there by unplugging cache disk2 (naturally cache data has to fit on smaller disk if you use one).

 

The title fits quite well, so I'l ask this here.

 

Can I setup multiple ssd caches without parity/mirror functions? The data is non sensible - I do however need the writespeed.

Furthermore I want to know if writing a single file to such a config would spread to multiple cache drives to give me higher write speeds than one ssd (and a port) would be able to handle.

The data in question is created on a vm running on unraid itself (UHD video capture).

The title fits quite well, so I'l ask this here.

 

Can I setup multiple ssd caches without parity/mirror functions? The data is non sensible - I do however need the writespeed.

Furthermore I want to know if writing a single file to such a config would spread to multiple cache drives to give me higher write speeds than one ssd (and a port) would be able to handle.

The data in question is created on a vm running on unraid itself (UHD video capture).

 

I believe you can only use single cache or cache pool with mirror (RAID1).

The title fits quite well, so I'l ask this here.

 

Can I setup multiple ssd caches without parity/mirror functions? The data is non sensible - I do however need the writespeed.

Furthermore I want to know if writing a single file to such a config would spread to multiple cache drives to give me higher write speeds than one ssd (and a port) would be able to handle.

The data in question is created on a vm running on unraid itself (UHD video capture).

 

I believe you can only use single cache or cache pool with mirror (RAID1).

You can manually set up a RAID-0 pool.  http://lime-technology.com/forum/index.php?topic=42100.msg400097#msg400097

Less hassle then setting up a raid 0 around UNraid, and cleaner aswell as I won't add drives on a daily basis.

Am I save to assume, that this will actualy behave like a raid 0, and will in fact split a single file to several drives? There are multiple good reasons not to split files, however in my case it is exactly what I need.

With UNraid delivering both, file management and gaming possibilities, I am a bit baffled not to see this scenario around here, atleast I did not find anything.

If this works out for me I certainly will poke some creators about it. Most of the ones I am in contact with already have suitable hardware, and are in need of multiplatforming, gaming, and ofcourse some sort of storage solution. Also the difficulty level of Unraid suits these folks better then hammering it toegether on linux themselves or getting into supervisors like, esxi ect.