senorsmile

Introspecting a file on ZFS

Derived from: http://www.c0t0d0s0.org/archives/7485-Find-out-in-depth-information-about-a-file-in-ZFS.html

Sometimes you need to acquire in-depth information about a file that isn't exposed by other commands like stat.

ZFS allows you to do this with zdb. However there's a confusing problem. If you're just trying to access a file on your root pool that doesn't have any nested datasets, you need use rpool/ instead of just rpool (assuming "rpool" is the name of your root pool).

Here's 3 examples of acquiring information on /filepath.

senorsmile

def make_rules(hosts, ports, proto):
    return [{"proto": proto,
             "from_port": port,
             "to_port": port,
             "cidr_ip": host} for host in hosts for port in map(int, ports.split(","))]

class FilterModule(object):
     def filters(self):
         return {'make_rules': make_rules}