Custom Query (1468 matches)

smartd has knowledge of the state of all the hard drives in the system, and as such it is a perfect abstraction layer between the hardware and services or software that would make use of such information.

Unfortunately, although it is a daemon, it currently behaves in a cron-like fashion, by querying the HDD at specified intervals and optionally sending emails when a fault is detected.

My proposal is to add a Unix socket interface to smartd so that the last-checked HDD state and drive inventory can be queried from external software. I am proposing a simple query interface: 1-line command, 1-line response.

What smartd should provide on the socket:

• a hello, I am running message; smartd version string included
• a command to shut down
• a command to reload the configs
• a command to provide internal daemon statistics, like daemon runtime, etc

For the drive data that should also be:

• a command to enumerate the drives monitored by smartd
• a command to provide SMART variables for the specified drive (including SCSI/ATA specifics)

Optionally, these might make sense too:

• a command to get/change device settings (-g -s in smartctl)
• a command to deal with self-tests, SMART-GPT logs

i found it handy if smartd can be set to monitor only first hdd(ssd) in system that used as boot. with auto detection of drive type (hdd ssd scsi etc).

scsiprint.cpp pout("SMART Health Status: OK\n");

should be changed to: pout("SMART overall-health self-assessment test result: PASSED\n");

It allows to parse output for different devices in the same way.