December 20, 20223 yr My cache pool is almost full it is Raid5 3x1TB ssd Data, RAID5: total=1.82TiB, used=1.67TiB System, RAID1: total=32.00MiB, used=240.00KiB Metadata, RAID1: total=6.00GiB, used=4.20GiB GlobalReserve, single: total=512.00MiB, used=0.00B When i check with krusader how much is used inside the cache it is not near the used amount that unraid is Showing (the Show Hidden Files is ticked in krusader). unraid used = 1.84TB krusader used = 859GB+- I am missing about 1TB of storage.
December 20, 20223 yr Community Expert Maybe UNRAID counts in the RAID5-Parity Drive (1Tb less of the total 3Gb) and krusader does not know about RAID5 and just counts the net file usage? Dont forget that RAID5 takes off 1 Drive from the net free space... (yeah I know, there is no special "Parity Drive" in RAID5, Parity is spread among all drives. But it is always occupied so it must be subtracted from the net-freespace) Edited December 20, 20223 yr by MAM59
December 20, 20223 yr Author As you can see I already lost 1 TB for the Raid5 instead of having 3TB I have 2TB. What I am saying is that after I am left with 2TB the krusader is telling me that I am using only 859GB+- and the unraid is telling me that i am using 1.84TB almost all the space
December 20, 20223 yr Community Expert the main question is why you are using raid5 at all? This btrfs is not the brightest idea i think, many people have problems with it. They say the next version of unraid will come with zfs, maybe that is more stable?
December 20, 20223 yr Solution Several things could be in play here : BTRFS does not report free space very well in RAID modes when using an ODD number of devices. Thought it is generally not too bad when there is little free space. Krusader is known to be inaccurate on that There is probably a question of GB vs GiB
December 20, 20223 yr Community Expert Also see here, could be a similar issue: https://forums.unraid.net/topic/132432-cache-used-space-is-a-lot-more-than-the-sum-of-the-files-on-the-cache/?do=findComment&comment=1203086
December 20, 20223 yr Author 33 minutes ago, ChatNoir said: Several things could be in play here : BTRFS does not report free space very well in RAID modes when using an ODD number of devices. Thought it is generally not too bad when there is little free space. Krusader is known to be inaccurate on that There is probably a question of GB vs GiB you are right the Krusader was really off by about 771GB from the Storj Folder. I run a "du -sh" and saw that in total the used space was 1.6TB in the Cache
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