missing zfs datasets after changing the system dataset

[zambanini]

maybe it is unrelated to moving the system dataset, but that was the last thing I did when freenas lost the sub datasets on this tank and I had to reboot (cifs, syslog stopped then)

1. #zfs list
2. #zpool status
3. #zpool iostat -v 5
4. #zfs list -r tank1

output is on http://pastebin.com/RtzENp5q



I am running freenas 9.2.16 nightly, had to move files to another zfs pool for a pool defrag.

since only two datasets where not moved, I did somethign stupid..I changes the system dataset in the web user interface.

a few seconds after that, cifs sharing stopped, syslog said soemthing about killing syslogd.

so i rebooted the freenas box at the same time (yes - stupid) - while the box was offline I changed the l2arc device without removing it first

I imported the pool manually:
The devices below are missing, use '-m' to import the pool anyway: gpt/log0 [log]
cannot import 'tank1': one or more devices is currently unavailable
#zpool import -f -m tank1
#zpool remove tank1 5494113224161738264

the web interface shows tank1 without datasets, the above pastebin was the result of some snooping around. yes, i have a backup..expect one directory on a dataset, which would be nice if I get it back.


every input is welcome, even if cyberdog will laugh at me.

 

[zambanini]

so - I setup another machine with two pools, and the same nightly build, when I move the system datasets, the other zfs datasets are away too.

 

[jkh]

I'm afraid I don't understand any of the above.

 

[zambanini]

http://awesomescreenshot.com/0b330ire67
If i move the system dataset, the orignal destion zpool was no more zfs datasets.

 

[solarisguy]

I cannot see your screenshot.

http://awesomescreenshot.com/0b330ire67
redirects to a blank page at
http://s3.amazonaws.com/awesome_screenshot/5063162?AWSAccessKeyId=0R7FMW7AXRVCYMAPTPR2&Expires=1403271962&Signature=PDdcbfX3PUrmA1lJGpM3uSVIK/Q=

When reposting, please include a screenshot before (working) and after (non-working). Preferably as PNG.

 

[jkh]

http://awesomescreenshot.com/0b330ire67
If i move the system dataset, the orignal destion zpool was no more zfs datasets.

I guess we're having language difficulties here. The way I read the above, you're saying that if you move the system dataset to another pool, all of your zfs datasets disappear - the origin pool is effectively destroyed. That's nothing I've ever seen, so again, I have to say that I can't reproduce this (and I have moved the system dataset around many times as part of testing that functionality).

Again, let's take this to a bug report (the forum is not a substitute for using the bug reporting system) and also list the precise set of steps required to reproduce this (from the very beginning, including installation and multi-pool layout, to the actual point where the origin pool is destroyed). Otherwise, there's nothing to be done.

 

[cyberjock]

I won't add firefox addons.. sorry. So no, I'm not viewing your screenshot.

 

[no_connection]

I have no problem seeing the screenshot, and the addon is just a screenshot tool for Firefox which generated the screenshot in the first place, not something you need to view it.
*edit* Attached from http://awesomescreenshot.com/0b330ire67

 

[Ericloewe]

http://awesomescreenshot.com/0b330ire67
If i move the system dataset, the orignal destion zpool was no more zfs datasets.

Piece of advice: Use your OS' built-in screenshot tool (in Windows, press start and type "snipping tool") and save as PNG or JPEG. There's no real reason to use a weird plugin to take screenshots.

 

[danb35]

Or, in Windows, the Print Screen key (maybe Alt+PrtScr) will take a screen shot to your clipboard. You can then paste it into MSPaint or whatever other graphics app you want. On a Mac, Cmd-Shift-3 will take a complete screen shot; Cmd-Shift-4 will let you select an area or an entire window.