Part 86: Thanks to Zabbix, a possible early warning about a dying HDD
The following is a story about partially black monitoring with many missing details due reasons told later in this post, but is also a story about how a single hint on your dashboard can sometimes be your best friend.
Last year my Raspberry Pi 4 SD card started to tell me it should be retired. Some I/O errors, and more than that, suddenly the I/O request times started to be up to 10,000-20,000 milliseconds.
