2008/7/2 Lowrie, Paul <[EMAIL PROTECTED]>:
> hrStorageTable belongs to Net-SNMP.org.

Incorrect.

hrStorageTable is part of the Host Resources MIB.
As such it "belongs" to the IETF

The Net-SNMP agent certainly implements this particular table,
but it's not specific to our agent.   It's a standard MIB definition,
and could easily be implemented by a wide range of SNMP agents.



> I wonder if the philosophy behind ZFS fits within / works with
> hrStorageTable philosophy? Consider a ZPOOLs are collections of
> (different/virtual/physical/something/anything) storage resources, and ZFS's
> are virtual file system constructs thereon. The hrStorageTable works for
> the partition/mount point/available/used/free paradigm but doesn't support
> or report on the various storage aggregation mechanisms that are
> possible/used below partition level, nor does it/can it report on any of the
> ZFS enhancements (eg. snapshots, compression, scrub status, quotas or
> under/over-subscription).

The hrStorageTable is intended as a single source of information about
"storage areas" in a fairly wide sense.   This can cover filesystems,
memory pools, etc, etc.   But you could also use it to report on the usage
of a set of physical bookshelves,  or the contents of a warehouse.

As such, it is deliberately designed to provide fairly general information.

Yes - there will almost certainly be ZFS-specific information that would
be useful to monitor/manage.   And this  would naturally be handled by
separate MIB tables, which would presumably be defined under the
appropriate enterprise OID tree.
   However it would probably be sensible for these ZFS-specfic table entries
to be linked to the corresponding  hrStorageTable entry - either via a column
object in the ZFS-table (c.f., HOST-RESOURCES-MIB::hrNetworkIfIndex),
or by having the ZFS tables AUGMENT the hrStorageTable
(i.e. use the same  indexes).



I'm not sure where the discussions you refer to have been taking place.
But this mailing list doesn't really feel the right place to discuss it.
Design of an enterprise-specific MIB is not really related to a single
SNMP toolkit.



Dave

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