Hi, at the moment i'm using a 4 Bay NAS with ZFS. I want to switch to unRAID so i can flexible add more and more drives in the future. I want to use the Cache Feature, because without i probably having lower performance compared to my current system.

 

I set up a test configuration, 3 disk, 1 spare, and now i want to add two identical Cache drives in RAID1 mode, so a faulty cache drive cannot lead to data loss. But when i add two drives, only one is formated (see screenshot). What i have to configure so that it uses RAID1?

 

Or is everything alright? but i miss the second cache drive filesystem

 

its unRAID 6.2 RC5

That's normal behavior for default RAID1 pool, info is shown for the pool, you can confirm everything is OK by clicking on "cache" to open the cache WebGUI page and checking "btrfs filesystem show", it shows how many devices are being used.

thank you, then everything seems fine

Label: none  uuid: 2ed8c96d-650a-4267-8499-4fb187147126

Total devices 2 FS bytes used 896.00KiB

devid    1 size 223.57GiB used 3.03GiB path /dev/sdf1

devid    2 size 223.57GiB used 3.03GiB path /dev/sdg1

Data, RAID1: total=2.00GiB, used=512.00KiB

System, RAID1: total=64.00MiB, used=16.00KiB

Metadata, RAID1: total=2.00GiB, used=112.00KiB

GlobalReserve, single: total=16.00MiB, used=0.00B

 

everything seems to be RAID1, thats great ... i was searching for that screen for a long time