December 29, 20178 yr Hey guys so I have a few questions about cache pools. I am about to add another drive to act as the second cache and would like to know exactly what I can do with it. Currently I am running an intel 120GB ssd as the single cache drive. I plan to add a 1TB hard drive into the cache pool. Is there a way to tell unraid to use the ssd first and then use the hard drive if the ssd gets filled? Also are there certain modes I can run the cache pool in? Such as maybe a mirror mode where the cache pool could be working similar to RAID 1 would work? Thanks guys! I will wait your responses while I mess around with the cache.
December 29, 20178 yr Community Expert 6 hours ago, Micaiah12 said: Is there a way to tell unraid to use the ssd first and then use the hard drive if the ssd gets filled? Not currently. 6 hours ago, Micaiah12 said: Also are there certain modes I can run the cache pool in? Such as maybe a mirror mode where the cache pool could be working similar to RAID 1 would work? https://forums.lime-technology.com/topic/46802-faq-for-unraid-v6/?do=findComment&comment=480421
December 31, 20178 yr Author Nice! That is a bummer that I can't make a pool act like a hybrid so that maybe apps and dockers run of the SSDs and maybe a specified VM and then everything else like files getting moved around going to the hard drive. I did find out about the modes. Right now I am running it in the JBOD mode and it runs well. I assume the raid 0 mode would make the pool run at the smallest drive?
December 31, 20178 yr Community Expert 3 hours ago, Micaiah12 said: Nice! That is a bummer that I can't make a pool act like a hybrid so that maybe apps and dockers run of the SSDs and maybe a specified VM and then everything else like files getting moved around going to the hard drive. I did find out about the modes. There's some work going on right now on making btrfs prefer an SSD for reads when a pool has both an SSD and HDD, no idea how long till it's done though. 3 hours ago, Micaiah12 said: I assume the raid 0 mode would make the pool run at the smallest drive? Correct, you'd get twice the size of the smallest drive.
Archived
This topic is now archived and is closed to further replies.