May 24, 201511 yr Currently i have 2 drives in my cache (only being used to hold VMs) When using both VM's (windows 8.1) disk usage jumps to 100% on both VM's slowing them to a grinding halt. Any suggestions other than just using one SSD? Also why does it say space free is 541GB and not over 1TB if i have only used 40 GB??? Cache Directory Only Contains: \\192.168.2.4\cache\ \\192.168.2.4\cache\Windows_VPN\vdisk1.img \\192.168.2.4\cache\Windows_NoVPN\vdisk1.img ----
May 24, 201511 yr Community Expert Look at the 'Balance Status' in your screen shot and google ' Raid 1' OR look it up on Wikipedia. It appears to me that you have got two virtual drives setup that are mirrors of each other. So the free space is half the sum of the two drives minus the used used space on the Raid 1 array.
May 24, 201511 yr Author Thats what i thought but i think its currently raid 1. (mirror) However if i click the button it will convert to RAID 1.... "-dconvert=raid1 -mconvert=raid1" From reading other posts i cannot simply do a "-dconvert=raid0 -mconvert=raid0"
May 24, 201511 yr You can't mirror a 160GB and a 1TB drive. They need to be the same size. Personally I use a pair of the ultra-cheap Crucial BX100. They perform pretty well considering the price.
May 24, 201511 yr Author root@Icarus:~# btrfs fi df /mnt/cache Data, RAID1: total=41.00GiB, used=40.66GiB System, RAID1: total=32.00MiB, used=16.00KiB Metadata, RAID1: total=1.00GiB, used=116.56MiB GlobalReserve, single: total=48.00MiB, used=0.00B root@Icarus:~# btrfs fi show Label: none uuid: a1f4c62d-b908-4384-944e-105d961bbaa4 Total devices 2 FS bytes used 40.78GiB devid 1 size 931.51GiB used 42.03GiB path /dev/sdg1 devid 2 size 149.01GiB used 42.03GiB path /dev/sdk1 ^^ At this point i think my best options for speed are RAID 0 .... OR Single (IE one VM per HD) # Don't duplicate metadata on a single drive (default on single SSDs) mkfs.btrfs -m single /dev/sdg1 When you have drives with differing sizes and want to use the full capacity of each drive, you have to use the single profile for the data blocks, rather than raid0. # Use full capacity of multiple drives with different sizes (metadata mirrored, data not mirrored and not striped) mkfs.btrfs -d single /dev/sdg1 /dev/sdk1 ----WOULD this be basicly like how unraid handles data without parity? IE one complete file to each drive not bits? If so why is not the default as it is most like the rest of how unraid is set up. One of my favorite things about unraid was that it used to be so simple lol
May 24, 201511 yr To be honest, you'd be better off taking the WD1600JS out to the yard and shoot it. Put it out of it's misery. That thing must be 8 years old?
May 24, 201511 yr Author Soo i tried, btrfs-progs v4.0 root@Icarus:/mnt# mkfs.btrfs -f -d single /dev/sdg btrfs-progs v4.0 See http://btrfs.wiki.kernel.org for more information. Turning ON incompat feature 'extref': increased hardlink limit per file to 65536 Turning ON incompat feature 'skinny-metadata': reduced-size metadata extent refs adding device /dev/sdk id 2 fs created label (null) on /dev/sdg nodesize 16384 leafsize 16384 sectorsize 4096 size 1.05TiB root@Icarus:/mnt# mkfs.btrfs -f -d single /dev/sdk btrfs-progs v4.0 See http://btrfs.wiki.kernel.org for more information. Turning ON incompat feature 'extref': increased hardlink limit per file to 65536 Turning ON incompat feature 'skinny-metadata': reduced-size metadata extent refs fs created label (null) on /dev/sdk nodesize 16384 leafsize 16384 sectorsize 4096 size 149.01GiB At which point the webgui reported both drives as unformated and Unmountable disk present....
May 24, 201511 yr Author Sigh ok i give up. Time to pull the second drive out and just goto one cache drive.
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