Issues with boot

Bhoot · Dec 14, 2015

So my FreeNAS box was running for a long period (about 30 odd days) It was getting a bit slow in day to day jobs like plex server/windows sharing. I decided to shut down the system for a while and give it a break. Now the system won't turn on (no beep/no fan movement/no POST). The MoBo light is on. I guess it's not probably the correct forum for this topic but could someone help me troubleshoot?

Sakuru · Dec 14, 2015

Check to make sure nothing is short circuited. After that, try just 1 stick of RAM at a time.

tvsjr · Dec 14, 2015

Do the HDDs, or any non-PWM fans, spin up? If not, I'd guess PSU problem - maybe a dead 12V rail. Check all connections (on both ends, if this is a structured cabling PSU).

Bhoot · Dec 14, 2015

removed both ram dimm. no response inserted 1 at a time no response again. :(

Bhoot · Dec 14, 2015

tvsjr said:
Do the HDDs, or any non-PWM fans, spin up? If not, I'd guess PSU problem - maybe a dead 12V rail. Check all connections (on both ends, if this is a structured cabling PSU).

No HDD response nor is any of the fan spinning. The MoBo does show a green light and when Power Cable is removed or inserted the light goes on and off on the mobo. That's the only thing I can make happen as of now

Bhoot · Dec 14, 2015

So Now a few hours later. I thought of the basics. Replacing the Power wire and using a different Power Point to root out any thing wrong outside the freenas box. At another terminal with a different power cable it worked "YAY":D
but still not sure as to what caused it, I took it back to the original port and original wire and now it sprang back to life.

I'm still nervous since I am not sure what is the problem with my freenas box..

Bhoot · Dec 14, 2015

Further updates: It showed 7 disks instead of 8 with a critical message of degrade. Opened up the box once more ensured all connections were in place/refixed them
Now after boot it shows 8 disks with
" CRITICAL: The volume bhoot (ZFS) state is ONLINE: One or more devices has experienced an unrecoverable error. An attempt was made to correct the error. Applications are unaffected."
Is this normal?

toadman · Dec 14, 2015

Run a scrub on the pool: zpool scrub [poolname]

Bhoot · Dec 15, 2015

toadman said:
Run a scrub on the pool: zpool scrub [poolname]

Started now

Code:

[root@freenas ~]# zpool status -v
pool: bhoot
state: ONLINE
status: One or more devices has experienced an unrecoverable error. An
attempt was made to correct the error. Applications are unaffected.
action: Determine if the device needs to be replaced, and clear the errors
using 'zpool clear' or replace the device with 'zpool replace'.
see: http://illumos.org/msg/ZFS-8000-9P
scan: scrub in progress since Tue Dec 15 23:00:12 2015
3.13G scanned out of 17.9T at 8.92M/s, 585h40m to go
20K repaired, 0.02% done
config:

NAME STATE READ WRITE CKSUM
bhoot ONLINE 0 0 0
raidz2-0 ONLINE 0 0 0
gptid/cce1f2ca-e4d8-11e4-b39d-f07959376c84 ONLINE 0 0 0
gptid/cd427285-e4d8-11e4-b39d-f07959376c84 ONLINE 0 0 2
gptid/cda4f9a1-e4d8-11e4-b39d-f07959376c84 ONLINE 0 0 0
gptid/ce06b19f-e4d8-11e4-b39d-f07959376c84 ONLINE 0 0 0
gptid/ce69a75d-e4d8-11e4-b39d-f07959376c84 ONLINE 0 0 0
gptid/cecc67df-e4d8-11e4-b39d-f07959376c84 ONLINE 0 0 0 (repairing)
gptid/cf2dd08e-e4d8-11e4-b39d-f07959376c84 ONLINE 0 0 0
gptid/cf91d6e8-e4d8-11e4-b39d-f07959376c84 ONLINE 0 0 0

errors: No known data errors

pool: freenas-boot
state: ONLINE
scan: scrub repaired 0 in 0h2m with 0 errors on Sun Dec 13 03:47:31 2015
config:

NAME STATE READ WRITE CKSUM
freenas-boot ONLINE 0 0 0
da0p2 ONLINE 0 0 0

errors: No known data errors

toadman · Dec 15, 2015

Great. Looks like it's repairing blocks on gptid/cecc67df-e4d8-11e4-b39d-f07959376c84, which is what you want.

Bhoot · Dec 15, 2015

toadman said:
Great. Looks like it's repairing blocks on gptid/cecc67df-e4d8-11e4-b39d-f07959376c84, which is what you want.

Thank you for all the help. Just one question. Hypothetically if there were 3 disks which went offline/disconnected/repairing would i be losing data on a raidz2 setup?

Bhoot · Dec 17, 2015

toadman said:
Run a scrub on the pool: zpool scrub [poolname]

Bhoot said:

Ok. So as suggested I had started a scrub on my pool. There was a digit 2 in one of the chksum values and 2 disks were showing (repairing). The scrub was proceeding very slow, but I guess that's coz of the errors and the size. I have about 14tb filled out of 20tb usable. But yes, the speed had dropped from an initial ~150mbps to ~90mbps when it started to when i last checked at about 55% showing ~30hours remaining. A few hours back I could not access the shell through the WebGUI but I could access the cifs and the webGUI itself. Then the cifs dropped off and while I was trying to see what was happening the wegGUI is also inaccessible. Checked on different devices. Nothing.
The disks are spinning and computer is alive. The hard disk activity light is constantly on. I am running ti headless so I can't be sure about what the monitor on the system is displaying. Any recommendations/suggestions? According to scrub stats it should now end in less than 24 hours.

Robert Trevellyan · Dec 17, 2015

Bhoot said:
if there were 3 disks which went offline/disconnected/repairing would i be losing data on a raidz2 setup?

Yes. The number in each RAIDZn designates how many drives can be lost without data loss, so with RAIDZ2 that number is 2. Lose a 3rd and you lose data.

Bhoot said:
Any recommendations/suggestions?

Can you still get in via SSH? If so, as long as the scrub is proceeding, I would wait it out, then see if any of the other services recover. If necessary, reboot when it's done scrubbing.

Important Announcement for the TrueNAS Community.

Issues with boot

Bhoot

Patron

Sakuru

Guru

tvsjr

Guru

Bhoot

Patron

Bhoot

Patron

Bhoot

Patron

Bhoot

Patron

toadman

Guru

Bhoot

Patron

toadman

Guru

Bhoot

Patron

Bhoot

Patron

Robert Trevellyan

Pony Wrangler

Similar threads