[ Sorry for the delay in responding to this ]

> The following output is from snmpwalk:
> 
> [EMAIL PROTECTED]:~> snmpwalk -v2c -c CCSADMIN localhost hrStorage
> host.hrStorage.hrMemorySize.0 = 3104964 KBytes
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> 
> Ah, what is the line above? Does that specify RAM, swap, or a 
> combination of the two?

Physical memory.


> hrStorageType.101 = OID:  hrStorageRam
> hrStorageType.102 = OID:  hrStorageVirtualMemory
> hrStorageType.102 = OID:  hrStorageOther
 
> hrStorageDescr.101 = Real Memory
> hrStorageDescr.102 = Swap Space
> hrStorageDescr.103 = Memory Buffers

> hrStorageSize.101 = 2097151
> hrStorageSize.102 = 2097136


> Am I correct in thinking that the two lines above give the
> amount for total RAM and total swap respectively?

Yes.  Quite correct.


> hrStorageUsed.101 = 2097151
> hrStorageUsed.102 = 964
> 
> And these are RAM used and swap used?

Yup.



> Could the allocation unit be increased to 4MB?
>                    is it the size of that variable in the 
> HOST-RESOURCE mib that constrains it's size, or the value
> returned by linux_mem (an integer) in hr_storage.c?

Depends on which object(s) you're referring to.
The hrMemorySize object is inherently limited to 2^32 Kbytes
(or actually 2^31 if you look at the definition of "KBytes")
That's down to the MIB definition, so would need a new RFC to change.

There's more flexibility with the hrStorageSize and hrStorageUsed
objects.  These could indeed be reported in 4Mb blocks (or similar).
That's just(!) a matter of writing the appropriate code.

Dave




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