About smartctl

Issues related to applications and software problems
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patrickchan701
Posts: 6
Joined: 2018/06/05 04:51:51

About smartctl

Post by patrickchan701 » 2018/10/08 07:50:23

my centos server is crashed , the /dev/sda1 is unable to mount , it was repair by the centos source disc rescue mode function

I would like to try to run the command "smartctl -a /dev/sda" to check the health , just would like to know if I run this command , do I need to shutdown anything eg . service or unmount the volumn ? is there any risk to run this command ?

thanks

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jlehtone
Posts: 2018
Joined: 2007/12/11 08:17:33
Location: Finland

Re: About smartctl

Post by jlehtone » 2018/10/08 09:24:18

There is no risk in that. It simply reads the smart data.

The smartctl can be used to start a self-test on the drive. Not sure whether that is invasive.

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