SAS drives and TrueNAS

wdp

New Member
May 1, 2021
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I've have a TrueNAS 12.0 U3 build that I've been chipping on the last few weeks, SuperStorage 6028R-E1CR12, Xeon E5-2600's, 64gb RAM, Broadcom 3008 controller, 10gbe, and happen to have SAS drives to populate the server with.

But SAS isn't smart capable? Correct me if I'm wrong, I am not a server engineer. This is all pretty new to me.

I see a lot of SAS setups out on the internet with TrueNAS. They show up, I build my pool and vdev, everything is good.

But what are the best practices for health checks / maintenance?
 

wdp

New Member
May 1, 2021
17
2
3
I brought this up because running a manual test in the GUI kicks back an error. I can't view results. And the TrueNAS forums are littered with SAS conversations about how SMART isn't really supported. I am very confused as to why the GUI is just failing left and right for me when it comes to implementing a health check workflow.
 

wdp

New Member
May 1, 2021
17
2
3
Well TrueNAS in the GUI just gives me an error when I start a test, and I can't view any results at all. The test does continue to run in the background, even though I was given a vague error on start.

But if I run or view the test in terminal, here is the output.

Code:
=== START OF INFORMATION SECTION ===
Vendor:               WDC
Product:              WUH721818AL5201
Revision:             B232
Compliance:           SPC-5
User Capacity:        18,000,207,937,536 bytes [18.0 TB]
Logical block size:   512 bytes
Physical block size:  4096 bytes
LU is fully provisioned
Rotation Rate:        7200 rpm
Form Factor:          3.5 inches
Logical Unit id:     
Serial number:       
Device type:          disk
Transport protocol:   SAS (SPL-3)
Local Time is:        Mon May  3 07:09:36 2021 PDT
SMART support is:     Available - device has SMART capability.
SMART support is:     Enabled
Temperature Warning:  Enabled

=== START OF READ SMART DATA SECTION ===
SMART Health Status: OK

Grown defects during certification <not available>
Total blocks reassigned during format <not available>
Total new blocks reassigned <not available>
Power on minutes since format <not available>
Current Drive Temperature:     31 C
Drive Trip Temperature:        85 C

Accumulated power on time, hours:minutes 32:31
Manufactured in week 50 of year 2020
Specified cycle count over device lifetime:  50000
Accumulated start-stop cycles:  3
Specified load-unload count over device lifetime:  600000
Accumulated load-unload cycles:  4
Elements in grown defect list: 0

Error counter log:
           Errors Corrected by           Total   Correction     Gigabytes    Total
               ECC          rereads/    errors   algorithm      processed    uncorrected
           fast | delayed   rewrites  corrected  invocations   [10^9 bytes]  errors
read:          0        0         0         0          2          0.018           0
write:         0        0         0         0        221          7.573           0
verify:        0        0         0         0         30          0.000           0

Non-medium error count:        0

SMART Self-test log
Num  Test              Status                 segment  LifeTime  LBA_first_err [SK ASC ASQ]
     Description                              number   (hours)
# 1  Background long   Completed                   -      27                 - [-   -    -]
# 2  Background short  Completed                   -       0                 - [-   -    -]
# 3  Background short  Completed                   -       0                 - [-   -    -]
# 4  Background short  Completed                   -       0                 - [-   -    -]
# 5  Background short  Completed                   -       0                 - [-   -    -]

Long (extended) Self-test duration: 65535 seconds [1092.2 minutes]
 

Rand__

Well-Known Member
Mar 6, 2014
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1,133
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You could open a ticket for this with iX?
If its actually working fine, just a gui issue then they might be able to do something about it...