Hard disk is working every few seconds

[Gleneisenbach]

Hi, I just built my first NAS4FREE Server.
Even the isn't anyone using the server, I can hear the disk working every 10 to 20 seconds.
I have no clue why.

Im using the following hardware:
Toshiba TransMemory mini Suruga 8GB schwarz
be quiet! System Power S7 300 Watt bulk
Kingston 4GB DDR3L SO-DIMM 1600MHz, PC3-12800
Cooler Master Elite 120 Advanced schwarz
ASRock Q1900-ITX
2 X Seagate ST3000VN000 NAS HDD 3TB

And in the GUI I can see the follwing processes:
last pid: 2767; load averages: 0.09, 0.02, 0.01 up 0+00:40:30 11:59:18
20 processes: 1 running, 19 sleeping

Mem: 49M Active, 139M Inact, 118M Wired, 67M Buf, 3425M Free
Swap: 4096M Total, 4096M Free


PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND
1928 root 1 20 0 12088K 1624K select 1 0:00 0.00% powerd
2282 root 1 22 0 41492K 6000K kqread 2 0:00 0.00% lighttpd
2022 root 1 20 0 275M 17784K select 1 0:00 0.00% smbd
2766 root 1 32 0 92032K 19096K piperd 3 0:00 0.00% php-cgi
2020 root 1 20 0 212M 12788K select 0 0:00 0.00% nmbd
1823 www 1 20 0 43568K 5048K kqread 0 0:00 0.00% lighttpd
2302 root 1 20 0 9952K 1836K nanslp 1 0:00 0.00% inadyn
2132 root 1 20 0 14184K 1848K nanslp 0 0:00 0.00% cron
1722 root 1 20 0 12116K 1744K select 1 0:00 0.00% syslogd
2491 root 1 52 0 14512K 3144K pause 2 0:00 0.00% csh
2488 root 1 52 0 45340K 2348K wait 2 0:00 0.00% login
2767 root 1 32 0 18668K 2340K CPU1 1 0:00 0.00% top
2502 root 1 52 0 14540K 2744K ttyin 2 0:00 0.00% sh
2746 root 1 23 0 9948K 2016K select 0 0:00 0.00% mDNSResponderPosix
1592 root 1 20 0 10376K 5356K select 0 0:00 0.00% devd
2490 root 1 52 0 12088K 1676K ttyin 0 0:00 0.00% getty
2489 root 1 52 0 12088K 1676K ttyin 3 0:00 0.00% getty
1319 root 1 52 0 12084K 1864K select 3 0:00 0.00% dhclient
2057 root 1 52 0 28924K 4372K select 1 0:00 0.00% sshd
1363 _dhcp 1 20 0 12084K 1916K select 0 0:00 0.00% dhclient

Has anyone a clue what my disk is doing??

[crowi]

Which services are running and please post the SMART values

[Gleneisenbach]

Hi crowi,

you gave me a challenge. I just googled what you my mean with SMART.
After 10 minutes I reached this answer:
SMART support is: Available - device has SMART capability.
SMART support is: Disabled

I turned SMART on, waited 5 minutes and got this, please note that I have two disks as a raid 1, this are the SMART values of disk ada0:

smartctl 6.3 2014-07-26 r3976 [FreeBSD 9.3-RELEASE-p9 amd64] (local build)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, http://www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family: Seagate NAS HDD
Device Model: ST3000VN000-1HJ166
Serial Number: W6A08306
LU WWN Device Id: 5 000c50 07d672884
Firmware Version: SC60
User Capacity: 3,000,592,982,016 bytes [3.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 5900 rpm
Form Factor: 3.5 inches
Device is: In smartctl database [for details use: -P show]
ATA Version is: ACS-2, ACS-3 T13/2161-D revision 3b
SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Sun Apr 5 10:39:14 2015 CEST
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: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection: Disabled.
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: ( 107) seconds.
Offline data collection
capabilities: (0x73) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
No Offline surface scan supported.
Self-test supported.
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: ( 1) minutes.
Extended self-test routine
recommended polling time: ( 405) minutes.
Conveyance self-test routine
recommended polling time: ( 2) minutes.
SCT capabilities: (0x10bd) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000f 117 100 006 Pre-fail Always - 151390104
3 Spin_Up_Time 0x0003 094 094 000 Pre-fail Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 10
5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0
7 Seek_Error_Rate 0x000f 100 253 030 Pre-fail Always - 70
9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 6
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 51
184 End-to-End_Error 0x0032 100 100 099 Old_age Always - 0
187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0
188 Command_Timeout 0x0032 100 100 000 Old_age Always - 0
189 High_Fly_Writes 0x003a 073 073 000 Old_age Always - 27
190 Airflow_Temperature_Cel 0x0022 073 073 045 Old_age Always - 27 (Min/Max 27/27)
191 G-Sense_Error_Rate 0x0032 100 100 000 Old_age Always - 0
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 10
193 Load_Cycle_Count 0x0032 100 100 000 Old_age Always - 83
194 Temperature_Celsius 0x0022 027 040 000 Old_age Always - 27 (0 22 0 0 0)
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always - 0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
No self-tests have been logged. [To run self-tests, use: smartctl -t]

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.

[Gleneisenbach]

I haven't found the problem, but I solved it.
Here my history in a short form:
- disks are working every few seconds
- disabled fuppes, still the same
- disabled samba, still the same
- enabled spindown of disk: disks were spinning up and down every few seconds
- disable spindown, reduced time for standby to 5 minutes, added an Electricity Usage Monitor, so I could see if the disk go to standby
- disabled fuppes, samba and webserver
- after 5 Minutes: Standby (Yuppi)
==> at this point I thought the webserver including ownclound must be the problem
- enabled webserver, disks woke up, wait 5 Minutes and again Standby!!!
- enabled samba, used samba, disks woke up, wait 5 Minutes and again Standby!!
Now fuppes remained. I already had enabled and disabled fuppes for more than 5 times without any effect. So I decided not to do the same a sixth time.
- Moved the fuppes.db from disk to usb-stick
- enabled fuppes, re-createded database, disks woke up, wait 5 Minutes and again Standby!!!
===> Problem solved!!!
- modifed standby to 30 Minutes