Custom Query (1417 matches)

AFAIK, currently Windows versions of smartctl allow piping smart data generated by 3ware tw_cli tool to smartctl, but this feature is not available in Linux.

I would greatly appreciate if it could be possible in the future to let smartctl read from stdin the hex-representation of 3ware-generated smart data and show the contents in human-readable format under Linux too.

There are operating systems where tw_cli is available, but not smartctl. My current issue is related to VMware ESXi with a 3ware controller: with tw_cli running in that environment, I can get a hex table of smart data over ssh to Linux environment, where I would like to decode the data to human readable.

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