Real use case of 3 x Odroid HC2 that have been in production for 3+ years

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domih
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Real use case of 3 x Odroid HC2 that have been in production for 3+ years

Post by domih »

The 3 systems run with a 10TB WD Red (WD100EFAX) and are named hc2a, hc2b and hc2c.

So far the NAS storage is used at 34%.

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Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1       9.1T  2.9T  5.8T  34% /mnt/storage
The 3 systems maintain an identical NAS image using rsync. No distributed storage.

hc2a is the "active" NAS.
hc2b syncs from hc2a every "active" hour, from early morning to late evening.
hc2c is manually synced on demand every few days or once a week.

As of this writing the 3 x HC2 have been working with zero issue. Kudos to Hard Kernel engineers!

I manually apt update them every few months. They are not exposed to the Internet. I usually upgrade hc2c and if it reboots normally, I then upgrade hc2b and if it reboots normally, I finally upgrade hc2a. In doing so, I always has at least one NAS running if a problem were to occur.

Because the Power-Off_Retract_Count does not rise at the same rate on each drive, I do not expect the disks to die at the same time.

The systems have now been running for about 3.2 years :-)

Statistics for each drive:

hc2a

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domih@hc2a:~$ sudo smartctl -d sat -a /dev/sda
...
Device Model:     WDC WD100EFAX-68LHPN0
...
Rotation Rate:    5400 rpm
Form Factor:      3.5 inches
...
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
...
  9 Power_On_Hours          0x0012   096   096   000    Old_age   Always       -       28067
...
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       38
...
192 Power-Off_Retract_Count 0x0032   086   086   000    Old_age   Always       -       17795
193 Load_Cycle_Count        0x0012   086   086   000    Old_age   Always       -       17795
194 Temperature_Celsius     0x0002   180   180   000    Old_age   Always       -       36 (Min/Max 20/49)
...
SMART Error Log Version: 1
No Errors Logged
hc2b

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domih@hc2b:~$ sudo smartctl -d sat -a /dev/sda
...
Device Model:     WDC WD100EFAX-68LHPN0
...
Rotation Rate:    5400 rpm
Form Factor:      3.5 inches
...
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
...
  9 Power_On_Hours          0x0012   097   097   000    Old_age   Always       -       27969
...
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       41
...
192 Power-Off_Retract_Count 0x0032   090   090   000    Old_age   Always       -       12994
193 Load_Cycle_Count        0x0012   090   090   000    Old_age   Always       -       12994
194 Temperature_Celsius     0x0002   185   185   000    Old_age   Always       -       35 (Min/Max 21/47)


SMART Error Log Version: 1
ATA Error Count: 2
...
Error 2 occurred at disk power-on lifetime: 15776 hours (657 days + 8 hours)
  When the command that caused the error occurred, the device was active or idle.
...
Error 1 occurred at disk power-on lifetime: 15776 hours (657 days + 8 hours)
  When the command that caused the error occurred, the device was active or idle.
...
SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed without error       00%     27969         -
# 2  Short offline       Completed without error       00%      2902         -
# 3  Short offline       Completed without error       00%      1875         -
hc2c

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domih@hc2c:~$ sudo smartctl -d sat -a /dev/sda
...
Device Model:     WDC WD100EFAX-68LHPN0
...
Rotation Rate:    5400 rpm
Form Factor:      3.5 inches
...
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
...
  9 Power_On_Hours          0x0012   097   097   000    Old_age   Always       -       27898
...
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       41
...
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       712
193 Load_Cycle_Count        0x0012   100   100   000    Old_age   Always       -       712
194 Temperature_Celsius     0x0002   180   180   000    Old_age   Always       -       36 (Min/Max 21/48)
...
SMART Error Log Version: 1
No Errors Logged
These users thanked the author domih for the post (total 2):
odroid (Sat May 07, 2022 10:43 am) • DHGE (Mon May 23, 2022 4:39 pm)

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