Track disk stats (size and inodes)

[alq666]

Tasks

• Add an option called: report_mount in datadog.conf to pick up mount points instead of linux devices as Datadog "devices".
• Capture system.fs.inode_in_use/inode_total/inode_free metrics using df -i

New options

use_mount in datadog.conf

[alq666]

Duplicate of #4

[ssbarnea]

Monitoring inodes is useless if you do not track the percent free of them. Their number is irrelevant because you can have a one gigabyte ram disk or a huge 10 TB disk and they have a very different number of inodes. Still, percent free is something that we can use to show a meaningful graph and trigger an alert.

[LeoCavaille]

@ssbarnea I don't know what version of the agent you're using or what OS you're on but usually the system Disk class reports 4 metrics:

• system.fs.inodes.used : number of inodes used
• system.fs.inodes.free : number of inodes free
• system.fs.inodes.total : total of used + free
• system.fs.inodes.in_use : percentage of inodes used

If these metrics are broken for you, please open a new ticket with some troubleshooting info. Thanks.

[ssbarnea]

Sorry, my confusion, just added the alert for it.