Need to reinstall TrueNAS Scale because of bad boot drive - what do I need to know

[scotrod]

Hi. Sorry if this has been asked countless times and please redirect me if there is such guide already.
I need to reinstall (((OR migrate?))) my TrueNAS Scale installation because of bad boot drive. I got the following error:
```

Device: /dev/sdd [SAT], 1 Currently unreadable (pending) sectors.​

2023-04-25 01:40:40 (Europe/Sofia)
```
sdd is my 120gb ssd boot drive - a single one, so no RAID.

The way i see it, I can either:
- save my config (already did that), plug another 120GB ssd > dublicate my boot drive/create RAIDZ1
- remove the bad drive > add another drive to its place > install TrueNAS Scale > import my config > import my pools

Is there anything important I should know? I'm using this software for ~2 months – I have no mission-critical info on it, but still wouldn't want to start from scratch as my Blu-ray collection is already on it.

Thanks!

 

[scotrod]

I have a task scheduled to run LONG S.M.A.R.T. test every Sunday night, and here is what I get from running smartctl -a /dev/sdsd:

smartctl 7.2 2020-12-30 r5155 [x86_64-linux-5.15.79+truenas] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Device Model: ADATA SU700
Serial Number: 2H2420086505
LU WWN Device Id: 5 707c18 100521a25
Firmware Version: L170203b
User Capacity: 120,034,123,776 bytes [120 GB]
Sector Size: 512 bytes logical/physical
Rotation Rate: Solid State Device
Form Factor: 2.5 inches
TRIM Command: Available, deterministic, zeroed
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: ACS-2 (minor revision not indicated)
SATA Version is: SATA 3.2, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Tue Apr 25 17:33:20 2023 EEST
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: ( 249) Self-test routine in progress...
90% of test remaining.
Total time to complete Offline
data collection: ( 33) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
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: ( 1) minutes.
Conveyance self-test routine
recommended polling time: ( 1) minutes.
SCT capabilities: (0x0039) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.

SMART Attributes Data Structure revision number: 0
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
9 Power_On_Hours 0x0012 100 100 000 Old_age Always - 23398
12 Power_Cycle_Count 0x0012 100 100 000 Old_age Always - 511
167 Unknown_Attribute 0x0022 100 100 000 Old_age Always - 0
168 Unknown_Attribute 0x0012 100 100 000 Old_age Always - 0
169 Unknown_Attribute 0x0013 100 100 010 Pre-fail Always - 0
173 Unknown_Attribute 0x0012 200 200 000 Old_age Always - 8613265636
175 Program_Fail_Count_Chip 0x0013 100 100 010 Pre-fail Always - 0
180 Unused_Rsvd_Blk_Cnt_Tot 0x0033 100 100 020 Pre-fail Always - 256
192 Power-Off_Retract_Count 0x0012 100 100 000 Old_age Always - 0
194 Temperature_Celsius 0x0022 066 066 030 Old_age Always - 34 (Min/Max 27/40)
231 Unknown_SSD_Attribute 0x0033 093 093 005 Pre-fail Always - 7
233 Media_Wearout_Indicator 0x0032 100 100 000 Old_age Always - 47441613952
234 Unknown_Attribute 0x0032 100 100 000 Old_age Always - 23748241424384
241 Total_LBAs_Written 0x0032 100 100 000 Old_age Always - 32438661200
242 Total_LBAs_Read 0x0032 100 100 000 Old_age Always - 14181316402

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.

 

[Etorix]

Plan 2:

- remove the bad drive > add another drive to its place > install TrueNAS Scale > import my config > import my pools

Done!

 

[scotrod]

Plan 2:

Done!

I'm taking that exporting and importing the config is idiot-proof and will even recognize my pools/import all of my settings? Meaning I will not have to do any additional settings, like import SSH keys and so on?

 

[sretalla]

SSH keys is the one thing not captured in the config, so manually take that and put it back after.

 

[scotrod]

SSH keys is the one thing not captured in the config, so manually take that and put it back after.

Sweet, thanks. Will confirm here if everything went smoothly - just exporting and importing the config looks too good to be true.

 

[sretalla]

You can find hundreds of "it went really well" posts on the forum, so hopefully this will now add to that list.

 

[scotrod]

You can find hundreds of "it went really well" posts on the forum, so hopefully this will now add to that list.

Yeah, it went really well. A lot of thanks to the developers who implemented such an easy process!