September 24, 2025Sep 24 I've tried asking around on Discord and it was suggested to post here. I'm on 7.2 beta 3, created a unencrypted ZFS zpool of 3x18tb drives as raidz2, and was going to expand it later with the miracles of 7.2. I created the zpool fine, and started moving data on it with the hopes of emptying the array and absconding with the old drives to put in the new Zpool.After a restart, it is currently taking 40+ minutes to mount the Zpool, earlier this morning it took an insane amount of time as well but eventually mounted in safe mode.Attached is a copy of syslog and diagnostics.nastr0niii-syslog-20250924-0150.zip nastr0niii-safemode-diagnostics-20250923-0753.zipI have no idea what's going on. Any ideas of what's going on or what can be done to move things along? Edited September 24, 2025Sep 24 by cave
September 24, 2025Sep 24 Author zfs list -t all NAME USED AVAIL REFER MOUNTPOINT zpool 14.0T 2.58T 1.94T /mnt/zpool zpool/Movies 2.08T 2.58T 2.08T /mnt/zpool/Movies zpool/Television2 10.0T 2.58T 10.0T /mnt/zpool/Television2 zpool/media 422M 2.58T 112K /mnt/zpool/media zpool/media/Movies 120K 2.58T 120K /mnt/zpool/media/Movies zpool/media/Music 95.6K 2.58T 95.6K /mnt/zpool/media/Music zpool/media/Television 95.6K 2.58T 95.6K /mnt/zpool/media/Television zpool/media/eBooks 421M 2.58T 421M /mnt/zpool/media/eBooksIgnore the random structures under /media, I got out in front of my skis on creating datasets without realizing how Unraid would handle shares.I'm currently expanding the zpool at the moment, but honestly after adding this second drive, everything does seem snappier. Once the zpool is done expanding I'll see if it still feels like a glacier to mount.
September 24, 2025Sep 24 Community Expert If it's still slow during mount next, during munt, open a terminal window and type: zpool iostat -vyl 10 1Then post the output from that, note that it will take 10 seconds to show the output.
September 28, 2025Sep 28 Author Solution Hello!I've completed the expansion, moved the data around, and have since mounted the zpool quite speedily without any issues. It appears to be fine at this juncture.Thanks for your help!
October 4, 2025Oct 4 Author Alright, well I am back. It's been 5+ hours, and I'm seeing reads (only a couple of mbs total).It's doing something, but what I'm not sure. It's only seeing activity on 1 core with high usage. I tried the command, but I'm not getting anything back.EDIT: capacity operations bandwidth total_wait disk_wait syncq_wait asyncq_wait scrub trim rebuild pool alloc free read write read write read write read write read write read write wait wait wait ---------- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- zpool 31.4T 34.0T 0 18.2K 0 304M - 2ms - 2ms - - - 559us - - - raidz2-0 31.4T 34.0T 0 18.2K 0 304M - 2ms - 2ms - - - 559us - - - sdi1 - - 0 4.48K 0 75.9M - 2ms - 2ms - - - 567us - - - sdc1 - - 0 4.52K 0 75.9M - 2ms - 2ms - - - 567us - - - sdf1 - - 0 4.52K 0 76.0M - 2ms - 2ms - - - 568us - - - sdb1 - - 0 4.72K 0 76.0M - 2ms - 1ms - - - 534us - - - ---------- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- -----The output for zpool iostat -vyl 10 1It finally came up, this is the output after the fact, not during :\ Edited October 4, 2025Oct 4 by cave
October 5, 2025Oct 5 Community Expert The stats look normal to me, there's no slower disk, suggesting it's reading the metadata. After import, post the output from zfs list -t all
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