Post on forum related this problem - https://www.zabbix.com/forum/zabbix-suggestions-and-feedback/415662-discussion-thread-for-official-zabbix-smart-disk-monitoring?p=428551#post428551

Windows Agent 2:

c:\Program Files\Zabbix Agent 2>zabbix_agent2.exe -t smart.disk.discovery
smart.disk.discovery [s|[{"{#NAME}":"sdc","{#DISKTYPE}":"NVME","{#MODEL}":"Samsung SSD 980 250GB","{#SN}":"S64BNJ0R220198Z"},{"{#NAME}":"sda","{#DISKTYPE}":"SSD","{#MODEL}":"WDC WD10JPVX-22JC3T0","{#SN}":"WD-WX71AA314833"},{"{#NAME}":"sdb","{#DISKTYPE}":"SSD","{#MODEL}":"Patriot Burst","{#SN}":"F90B0796110400318558"}]]

Windows smartctl version

c:\Program Files\smartmontools\bin>smartctl.exe -v
smartctl 7.2 2020-12-30 r5155 [x86_64-w64-mingw32-w10-b19043] (sf-7.2-1)

Test from Server:

[root@zabbix54 ~]# zabbix_get -s 192.168.100.15 -k smart.disk.discovery
ZBX_NOTSUPPORTED: Failed to scan for devices: Cannot unmarshal JSON: invalid character '\'' looking for beginning of value..
 

Аналогичная ситуация. После обнаружения проблемы с версией smartmontools 7.2 пробовал проверить в старой версии 7.1, но безуспешно.

Такая же проблема. Из командной строки вывод такой же:

root@z01:/home/soft# zabbix_get -s 10.0.0.189 -k smart.attribute.discovery
ZBX_NOTSUPPORTED: Failed to scan for devices: Cannot unmarshal JSON: invalid character '\u00ad' after top-level value.. 

Хотя smartctl.exe --scan-open на машине Windows 10 выводит информацию о дисках:

/dev/sda -d ata # /dev/sda, ATA device
/dev/sdb -d ata # /dev/sdb, ATA device

При этом вывод из cmd:

В какую сторону смотреть? Уже перебрал все варианты. Служба запускается от учётной записи системы, путь до smartctl.exe прописан в переменной PATH.

Версия smartmontools 7.2

Zabbix 5.0.18 + zabbix-agent2 5.0.18
Windows-server 2019
smart.disk.get
ZBX_NOTSUPPORTED: Failed to scan for devices: Cannot unmarshal JSON: invalid character '\u00ad' after top-level value..

When executing smart.disk.* or smart.attribute.* do you configure the `Plugins.Smart.Path=` config field? And if so is it a path to the executable ? Or does it also include the executable file in it.

It must include the executable in it. So that might be the cause of some of the issues.

Спасибо! Получилось! Заработало!

Может кому-то поможет, решение моей проблемы:

1. Переустановил smartmontools
2. В zabbix_agent2.conf добавил параметр 

   Plugins.Smart.Path="C:\Program Files\smartmontools\bin\smartctl.exe" 

       3. Перезапустил службу Zabbix Agent 2

       4. Отвязал и привязал заново шаблон SMART by Zabbix agent active 2 (у меня активный агент)

       5. Для теста изменил время обнаружения дисков на 10s в правилах обнаружения и бинго, данные появились!

Я так долго бился с этим, уже не знал что делать, причём я раньше пробовал прописывать путь, но я прописывал путь до папки с файлом, но не к самому файлу. Спасибо огромное за помощь!

UPD: Windows 11, Zabbix Server 5.4.10, Zabbix Agent 2 5.4.8, smartmontools 7.2.1

Good day Dictonary !

Would it be possible to get some more information?

• What was the output error?
• Does smartctl get executed at all, if run separately from the provided pass?
• What did the Zabbix agent 2 log show (with trace debug level if possible)?

Hi, all!

Dictonary  if You or any one else is still having issues with SMART. I'd like to mention a couple of things.

• As mentioned before the path mast be to the smartctl executable and needs to be in double quotes
• Zabbix agent 2 needs to be ran with root access rights(sudo)/Admin access.
• Not all devices support smart. And sometimes they are not in smartctl lists. This might cause an empty response.
• There has been additional logging added to Zabbix agent 2 smartctl execution and now it logs the command and the raw response. This needs Trace level debug enabled in Zabbix agent 2 configuration file.

So please if the issue still persists, please enable the Trace log option, execute the key again. And if possible please provide the Trace log file.  

I've stated zabbix agent with debug level=5 and received following output:

2022/05/30 15:48:57.577912 [Smart] command sudo -n /usr/sbin/smartctl -j -V smartctl raw response:
2022/05/30 15:48:57.577975 failed to execute direct exporter task for key 'smart.attribute.discovery' error: 'Failed to execute smartctl: Command execution failed: exit status 1.'
2022/05/30 15:48:57.578021 failed to obtain PID of dead child process: no child processes
2022/05/30 15:48:57.578050 sending passive check response: ZBX_NOTSUPPORTED: 'Failed to execute smartctl: Command execution failed: exit status 1.' to 'x.x.x.x'

I found that user zabbix have no right to run smartctl

I add to sudoerrs following line:

zabbix ALL=NOPASSWD:    /usr/sbin/smartctl

This modification solved issue.