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Trivial Description
Mini SNMP is a tiny implementation of snmpd. It can run on embedded devices, like routers and storage devices. It is also part of the OpenWrt project.
Currently, this minimalistic daemon does implement only a very small subset information. When Obsersium tries to do discovery/polling these kind of devices, they cannot find any hrStorageEntries. This causes storage and memory pools undetected.
The information however is there, in example a dskEntry can be found when walking the information.
Currently I am working on a small implementation to support to load, memory and storage usage on those devices. After I finish, I'd like to contribute a patch when it is working.
However, as careful I as i will code, using snmp and observium is not my core business, so I might need someone to review and polish it a bit after it works 
I already started working on it. When I have a fully working version, I will upload a patch against 0.13.10.4585 here.
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Activity
Attached a small part of the mini_snmpd source and a complete snmpwalk over it.
As far I can see, only the uptime is available inside HOST-RESOURCES-MIB, the other information is found under UCD-SNMP-MIB.
Glad to hear dskEntry will be available in the next community edition.
MIB UCD-SNMP-MIB::dskEntry already supported in latest svn (Subscription Edition).
Respectively, support this MIB will be fully added to the next Community Edition.
Still running like expected, no bugs found yet. Guess I can consider this one stable on the first try
First version.. seems to work well now for a few days. Tested on two devices running mini snmpd v1.2b.
Other hosts with hr* support and normal snmpd seem to be unaffected by this patch and do run like normal.
UCD-SNMP-MIB fully supported now independently of HOST-RESOURCES-MIB.
Wait this in next CE edition.