DeKinci Posted March 1, 2021 Share Posted March 1, 2021 Without any major changes in configuration network disk usage on unraid server became unusably slow. Problem persists after restarts. Short config (diagnostics attached): Unraid 6.8.3 2x WD red 4 TB, data and parity Plextor 1TB SSD cache Evidences: Loading folder in windows (smb) takes a few seconds Downloading or *uploading files in windows or android or ubuntu (nfs mount) starts at a few kbps, but fails * uploading from ubuntu nfs mount works at full speed Plex video loads (caches) every second for 5-10 seconds Minecraft server has seconds of in-game action delay Evidences against disk failure: Copying file via terminal happens at high speed (tested in /mnt/user directory, so unraid internal mounting systems work fine, as well as /mnt/cache and /mnt/disk1, so ssd and disks work fine) Evidences against network failure: Updating docker image happens at usual speed Weak evidences against SMB issue: NFS mount downloading shows speeds aroung 30-100kbps ! But uploading works at full speed (100 MiBps) Downloading of uploaded file while mounted is at 276MiB, faster than internet connection, so it's probably cached Downloading of uploaded file after unmount-mount is at 30-100kbps again I don't really have a clue how to keep debugging it. No configuration changes happened for at least a day when this issue occurred and everything worked fine for around a year before that. Also using safe mode is last possible option as for now I only have remote access to the server. Diagnostics info attached (idk where to look in them so might've missed an elephant). mars-diagnostics-20210301-0244.zip Quote Link to comment
JorgeB Posted March 1, 2021 Share Posted March 1, 2021 Run a single stream iperf test. Quote Link to comment
DeKinci Posted March 1, 2021 Author Share Posted March 1, 2021 Sadly results are fine: [ ID] Interval Transfer Bandwidth Retr [ 4] 0.00-10.00 sec 62.3 MBytes 52.2 Mbits/sec 350 sender [ 4] 0.00-10.00 sec 59.9 MBytes 50.2 Mbits/sec receiver Quote Link to comment
JorgeB Posted March 1, 2021 Share Posted March 1, 2021 6 minutes ago, DeKinci said: Sadly results are fine: Not really, unless you're using WiFi. Quote Link to comment
DeKinci Posted March 1, 2021 Author Share Posted March 1, 2021 It's wifi over VPN on a router over 50 Mbits internet connection. It's not like they are 200 kbps I get in reads Quote Link to comment
DeKinci Posted March 1, 2021 Author Share Posted March 1, 2021 Looks like I'm missing 1 in 10 pings from my pc to unraid server, will keep investigating this Quote Link to comment
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