m0ngr31 Posted May 2, 2017 Share Posted May 2, 2017 I have 2 slots left on my NAS I can put SSD drives into for a cache pool. I have 3 SSDs kicking around I was thinking about using: 128GB, and 2x 32GB. Â What would be the best setup? A RAID1 for maximum space and speed? But then I'm hosed if one goes bad right? All of my dockers and stuff will be gone? Should I just run a RAID0 with the 32GB ones and hope it's enough space? Link to comment
trurl Posted May 2, 2017 Share Posted May 2, 2017 Since you don't have enough slots for all 3 I would just go with the 128 by itself. Â If you did use all 3 disks in btrfs raid1 you would get redundancy, but only 64GB total capacity. raid0 would give 96GB but no reduncancy except metadata. Best for capacity would be "single" for all 192GB but no redundancy. Â http://carfax.org.uk/btrfs-usage/ Â Lots more about cache in the FAQ: Â Â Probably a good idea to have backups of appdata and VMs anyway, which you can get with CA Backup plugin. Â Link to comment
m0ngr31 Posted May 3, 2017 Author Share Posted May 3, 2017 So even in RAID1, the metadata has redundancy? Link to comment
gubbgnutten Posted May 3, 2017 Share Posted May 3, 2017 Sounds like you have RAID 0 and 1 mixed up, @m0ngr31... Link to comment
m0ngr31 Posted May 3, 2017 Author Share Posted May 3, 2017 On 5/2/2017 at 0:26 PM, trurl said: raid0 would give 96GB but no reduncancy except metadata  I was just trying to clarify this since it didn't make sense to me. Link to comment
JorgeB Posted May 3, 2017 Share Posted May 3, 2017 Â I was just trying to clarify this since it didn't make sense to me.With brtfs raid you can have raid0 for data together with raid1 for metadata. Link to comment
Recommended Posts
Archived
This topic is now archived and is closed to further replies.