Web interface gone "An error occurred."

[diskdiddler]

Can still ping server
Can still access data over SMB.
Noticed some emails in my inbox which gmail so goddamn kindly decided to hide about critical heat alerts - however server and data do appear to still be in tact.

None the less, following error when trying the web UI.

An error occurred.
Sorry, the page you are looking for is currently unavailable.
Please try again later.

If you are the system administrator of this resource then you should check the error log for details.

Faithfully yours, nginx.

One of my disks has been pulled offline and the array is degraded (but I have 2 disk redundancy luckily)
Unsure which disk or why, I've not got an email besides basic temp alert emails.

My monthly SMART check might be occurring.
Any suggestions, I'd like to reboot her cleanly - but .. I dunno, I'm surprised to see the web UI offline, anyone?

Thanks all.
Note: pretty sure I was right up to date, perhaps 1 update behind (maybe a week or two) 9.3 - on a HP Microserver N54L, she's been fine for 7+ months thus far?

Thanks.

 

[diskdiddler]

Scratch that, she's no longer responding to ping, I attempted to telnet into it with putty and ping has stopped.
Dunno if she's rebooting or not, I was just about to respond to this bug report too.

https://bugs.freenas.org/issues/7499

 

[diskdiddler]

Ok she rebooted herself, according to alerts no disks are offline - but one of them has had it's accoustic level and all kinds of settings changed? very odd.
I need to re-initiate a ful smart check I think, anyone recall the command?

 

[diskdiddler]

Ok I've initiated this.

[root@freenas] ~# smartctl -t long /dev/ada5
smartctl 6.3 2014-07-26 r3976 [FreeBSD 9.3-RELEASE-p13 amd64] (local build)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===
Sending command: "Execute SMART Extended self-test routine immediately in off-li ne mode".
Drive command "Execute SMART Extended self-test routine immediately in off-line mode" successful.
Testing has begun.
Please wait 546 minutes for test to complete.
Test will complete after Wed Jun 17 03:44:11 2015

Use smartctl -X to abort test.
[root@freenas] ~#

Sorry for messing up the forums, my little box misbehaves so rarely, I keep forgetting how to administer it.
Anyone know how I VIEW the resules in 546 minutes?
Thanks all whom read this thread, she looks ok - but the random reboot is worrying - I don't have the budget to build a new box (because next one I build will be a very expensive beast)

EDIT:
I believe the command to read my logs back is
"smartctl -a /dev/adaXX"

I'll do that tomorrow morning.

 

[SweetAndLow]

Yes do that and post the results of you want so other people can weigh in.

 

[diskdiddler]

Is there any logs I should produce which would assist diagnosing this fault in future? Considering only one other person has it and the devs said "WTF produce logs" - sopmeone tell me which file to get and I'll pull a copy?

Thanks

 

[Noctris]

I've had this issue a couple of times. Everytime i did, it had something to do with a bad or failing boot device (This doesn't mean it always has to be).

Could you post full hardware config ( Ram? ECC ? boot device ?)
Have you checked the boot device ? ( scrub)

Concerning updates:

It might not be everyone's idea about it, but i still hold true to the simple truth: "if it is not broken, don't fix it". I fought enough wars on the battle field where a simple patch that should require no more then 5 minutes ended up costing me a night or worse.

This is especially true with something like a data repository.So unless you have a requirement, need or problem that a specific update adresses. Just leave it be.

 

[diskdiddler]

I have 8gb non ECC ram in the Microserver N54L - it's been rock solid 7 months though.
I'm using a USB boot device, semi-decent USB3 key (2 of them - with ZFS enabled) I can't recall how or what I did but I did the thing which makes them redundant (IIRC?)

Must admit, not sure if I have a scrub even configured for the boot array, does one get made as default if you make the boot volume a ZFS volume?

 

[diskdiddler]

Ok so I'm changing the default monthly smart test routine, instead of the 15'th of the month, 6 disks doing a full long test.
I'm having the 12'th = disk0, 13'th = disk 1, 14'th = disk2 and so on.... may reduce heat and strain on the system.

Anyone got any suggestions regarding the log files, I still know when the web UI went offline and I'm happy to upload a file regarding this issue?
Finally, recommended way of running a scrub on the boot volume?
EDIT: Boot volume seems to auto scrub itself, despite me not having a job configured for it, last scrub on the 4'th - current condition healthy? Is this automated once you configure a spanned boot volume?

 

[diskdiddler]

One more thing, sorry.
Results of the smart test for the disk which had accouustic settings, power settings reset.
Please remember to read the 2 posts above though :)

[root@freenas] ~# smartctl -a /dev/ada5
smartctl 6.3 2014-07-26 r3976 [FreeBSD 9.3-RELEASE-p13 amd64] (local build)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family: Toshiba 3.5" MD04ACA... Enterprise HDD
Device Model: TOSHIBA MD04ACA500
Serial Number: 447EK3WUFS9A
LU WWN Device Id: 5 000039 57bd80a72
Firmware Version: FP1A
User Capacity: 5,000,981,078,016 bytes [5.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 7200 rpm
Form Factor: 3.5 inches
Device is: In smartctl database [for details use: -P show]
ATA Version is: ATA8-ACS (minor revision not indicated)
SATA Version is: SATA 3.0, 6.0 Gb/s (current: 3.0 Gb/s)
Local Time is: Wed Jun 17 08:03:19 2015 AEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status: (0x85) Offline data collection activity
was aborted by an interrupting command from host.
Auto Offline Data Collection: Enabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: ( 120) seconds.
Offline data collection
capabilities: (0x5b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
No Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 546) minutes.
SCT capabilities: (0x003d) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000b 100 100 050 Pre-fail Always - 0
2 Throughput_Performance 0x0005 100 100 050 Pre-fail Offline - 0
3 Spin_Up_Time 0x0027 100 100 001 Pre-fail Always - 589
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 35
5 Reallocated_Sector_Ct 0x0033 100 100 050 Pre-fail Always - 0
7 Seek_Error_Rate 0x000b 100 100 050 Pre-fail Always - 0
8 Seek_Time_Performance 0x0005 100 100 050 Pre-fail Offline - 0
9 Power_On_Hours 0x0032 081 081 000 Old_age Always - 7930
10 Spin_Retry_Count 0x0033 100 100 030 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 35
191 G-Sense_Error_Rate 0x0032 100 100 000 Old_age Always - 268
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 11
193 Load_Cycle_Count 0x0032 100 100 000 Old_age Always - 75
194 Temperature_Celsius 0x0022 100 100 000 Old_age Always - 48 (Min/Max 20/68)
196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 100 100 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 253 000 Old_age Always - 0
220 Disk_Shift 0x0002 100 100 000 Old_age Always - 0
222 Loaded_Hours 0x0032 081 081 000 Old_age Always - 7927
223 Load_Retry_Count 0x0032 100 100 000 Old_age Always - 0
224 Load_Friction 0x0022 100 100 000 Old_age Always - 0
226 Load-in_Time 0x0026 100 100 000 Old_age Always - 195
240 Head_Flying_Hours 0x0001 100 100 001 Pre-fail Offline - 0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 7925 -
# 2 Extended offline Completed without error 00% 7908 -
# 3 Short offline Completed without error 00% 7886 -
# 4 Short offline Completed without error 00% 7838 -
# 5 Short offline Completed without error 00% 7790 -
# 6 Short offline Completed without error 00% 7742 -
# 7 Short offline Completed without error 00% 7694 -
# 8 Short offline Completed without error 00% 7646 -
# 9 Short offline Completed without error 00% 7598 -
#10 Short offline Completed without error 00% 7550 -
#11 Short offline Completed without error 00% 7526 -
#12 Short offline Completed without error 00% 7478 -
#13 Short offline Completed without error 00% 7430 -
#14 Short offline Completed without error 00% 7383 -
#15 Short offline Completed without error 00% 7335 -
#16 Short offline Completed without error 00% 7287 -
#17 Short offline Completed without error 00% 7239 -
#18 Short offline Completed without error 00% 7190 -
#19 Extended offline Completed without error 00% 7164 -
#20 Short offline Completed without error 00% 7142 -
#21 Short offline Completed without error 00% 7094 -

SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

[root@freenas] ~#

 

[gpsguy]

I see you have a 5TB drive. Are all 6 disks, 5TB? If so, it could be starved for RAM, with just 8GB. How full is the volume?

Are you running one of the hacked BIOS' that allow the other two connections (ODD & eSATA) to run in AHCI mode?

I have 8gb non ECC ram in the Microserver N54L ...

 

[diskdiddler]

6x5TB, never been an issue before with RAM but yes, only 8gb.
Am running hacked bios, have been for 2 years? but only 7 months on FreeNAS
Could be RAM, won't deny it's possible - but is there a way to confirm? - does running a smart long test chew RAM? where's the log file Jordan needs?
https://bugs.freenas.org/issues/7499

 

[Robert Trevellyan]

I'm using a USB boot device, semi-decent USB3 key (2 of them - with ZFS enabled) I can't recall how or what I did but I did the thing which makes them redundant (IIRC?)

The "thing" is a ZFS mirror.

194 Temperature_Celsius 0x0022 100 100 000 Old_age Always - 48 (Min/Max 20/68)

That disk is too hot now (48C), and has been way too hot (68C) in the past.

 

[Bidule0hm]

That disk is too hot now (48C), and has been way too hot (68C) in the past.

My god, we can cook an egg on a 68 °C drive :D

 

[Robert Trevellyan]

My god, we can cook an egg on a 68 °C drive :D

Yup.

I was unable to quickly locate specs for the MD04ACA, but the MC04ACA has a maximum operating temperature of 55C.

 

[diskdiddler]

Yeah I imagine that's not ideal - I agree 100%
Doesn't explain the webUI death tho

 

[Robert Trevellyan]

Doesn't explain the webUI death tho

It may indicate that your whole box has some kind of cooling issue, which could lead to instability in other components.

 

[gpsguy]

Technically the server was only designed for four hard disks and the OP is squeezing 6 7200 RPM drives in it..

Is the hot drive in the ODD bay? What are the temps of the other drives?


Sent from my phone

 

[diskdiddler]

Yes the disks are too hot (at times) but generally, when no scrub or smart long test is being performed, they run sub 50c - not ideal but they've done this for 8 months.
Definitely would like to cool better and or replace the whole system one day but as it stands, I'd love to know what log file I should be pulling in case this happens again.

 

[Bidule0hm]

A drive should never go past 40 °C, even during scrub or SMART tests.