Chris Phillips’ Blog - API, Integration and Governance

I have been using CEPH a lot recently that has an annoying habit of knackering disks. To fix this is simple, you do a hard reset and everything is fine. However in this modern cloud world I do not have access (or want it) to my vcenter, and the guy in charge is a different time zone and equally busy.

So from a quick google I cam across this

Hard reset on linux command line.

Linux is not Windows XP and if reboot fail you usually still connect by SSH and do something. This commands will show…*www.linux-geex.com](https://www.linux-geex.com/hard-reset-on-linux-command-line/ “https://www.linux-geex.com/hard-reset-on-linux-command-line/”)

These instructions say a hard reset can be done by doing the following

echo 1 > /proc/sys/kernel/sysrq echo b > /proc/sysrq-trigger

And they work like a charm.

Thanks to Pedro M. S. Oliveira for their post from 8 years ago!

By Chris Phillips on August 15, 2018.

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Exported from Medium on April 6, 2019.