November 28, 20169 yr Hi, I'm having some issues with my unRAID (latest RC - started happening even before my upgrade) df -h rootfs 16G 522M 16G 4% / tmpfs 16G 344K 16G 1% /run devtmpfs 16G 0 16G 0% /dev cgroup_root 16G 0 16G 0% /sys/fs/cgroup tmpfs 128M 3.1M 125M 3% /var/log /dev/sda1 7.4G 418M 7.0G 6% /boot /dev/md1 7.3T 7.1T 191G 98% /mnt/disk1 /dev/md2 7.3T 7.1T 208G 98% /mnt/disk2 /dev/sdc1 233G 140G 0 100% /mnt/cache shfs 15T 15T 398G 98% /mnt/user0 shfs 15T 15T 398G 98% /mnt/user Cache disk is showing 100% full, in the webUI i see cache drive still has 101 GB left. I've tried readjusting the cache floor setting, but nothing is working. What is taking up that extra space??
November 28, 20169 yr Author Post diagnostics. Sure, it's here https://www.dropbox.com/s/sq9sb778n12ryt4/unraid-diagnostics-20161128-1519.zip?dl=0
November 28, 20169 yr Community Expert Go to Main - Cache Devices, click on cache, and post a screenshot of Pool Information. Have you tried Scrub?
November 28, 20169 yr Author Go to Main - Cache Devices, click on cache, and post a screenshot of Pool Information. Have you tried Scrub? I just scrubbed with/without correcting errors. No luck I see no pool information. Is this what you want to see?
November 28, 20169 yr Community Expert On mine Pool Information is on that same page just below the portion you posted.
November 28, 20169 yr Author On mine Pool Information is on that same page just below the portion you posted. But I just have 1 cache drive? a 250GB as you should see in diagnostics? Can that be the issue. I appreciate your help so far. I'm lost without a server. This is my first major issue since a year running unRAID :-(
November 28, 20169 yr Author When I try to reboot with shutdown -r I get the following message in syslog all the time: Nov 28 18:08:15 unRAID emhttp: shcmd (1609): umount /mnt/cache |& logger Nov 28 18:08:15 unRAID root: umount: /mnt/cache: target is busy Nov 28 18:08:15 unRAID root: (In some cases useful info about processes that Nov 28 18:08:15 unRAID root: use the device is found by lsof( or fuser(1).) Nov 28 18:08:15 unRAID emhttp: Retry unmounting disk share(s)...
November 28, 20169 yr Community Expert If you have a terminal session open with a current working directory in /mnt that could be the problem.
November 28, 20169 yr Author If you have a terminal session open with a current working directory in /mnt that could be the problem. That wasn't the case. Had to force shutting it down by holding in the physical power button :-/. Well my problem seems to have normalized now. df -h (cache disk) output: root@unRAID:/mnt# df -h /dev/sdc1 233G 122G 112G 53% /mnt/cache I started deleting some VM's and eventually 100% disk usage went down to 53% which is correct. I would really like to find the root cause of this issue, as this happened suddenly today after an uptime of roughly two months. I fear this will happen again in the future. I suspect this is related to a bad user-share configuration together with the cache floor setting. But I'm just guessing. Are there any recommended settings for these?
November 29, 20169 yr Author Ok so I got the same problem today. It seems when my cache mount (1x250gb samsung evo drive) reaches 54% usage, unRAID somehow thinks it's 100% full (based on the output from df -h). Then everything goes haywire; VM's stopping, certain docker applications stops and I'm unable to reboot. Once i delete some stuff and it goes below 53% usage it's fine again. I'm on latest RC5, it happened on RC3 & RC4 aswell. I've tried: Scrubbing (with/without error fixing) SMART test SMART Extended test Parity Check Rebooted several times None of these reports any errors. Anybody has an idea of what could be wrong? Anybody knows what this issue could be?
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