Seriously, there are four main resources that a filer can run out of, and sysstat(1) reports on all four. They are:
- CPU - network bandwidth - disk bandwidth - caching memoryTherefore, I want MRTG and HP OpenView to pay attention to those 4 things. However, my look at the MIB doesn't really have those last two, and is slightly unclear about what the best variables are for the first two.
I'd really be able to better plan my purchases for the next year if I could have MRTG generate graphs of those four statistics for every Filer that I own. I could show a pretty picture to management and with certainty state, "...and therefore we can safely add more disk" or "...and therefore, you can't add more disk to this box; but another Filer."
Am I mis-reading the MIB or does the MIB fall short?
The mib for the future release currently in process contains the following:
cpuBusyTimePerCent OBJECT-TYPE SYNTAX INTEGER (0..100) ACCESS read-only STATUS mandatory DESCRIPTION "The percent of time that the CPU has been doing useful work since the last boot." ::= { cpu 3 }
miscNetRcvdKB OBJECT-TYPE SYNTAX INTEGER ACCESS read-only STATUS mandatory DESCRIPTION "The total number of KBytes received on all the network interfaces, since the last boot." ::= { misc 2 }
miscNetSentKB OBJECT-TYPE SYNTAX INTEGER ACCESS read-only STATUS mandatory DESCRIPTION "The total number of KBytes transmitted on all the network interfaces, since the last boot." ::= { misc 3 }
dfEntry OBJECT-TYPE SYNTAX DfEntry ACCESS not-accessible STATUS mandatory DESCRIPTION "Provide a report of the available disk space on the referenced file system." INDEX { dfIndex } ::= { dfTable 1 }
DfEntry ::= SEQUENCE { dfIndex INTEGER, dfFileSys DisplayString, dfKBytesTotal INTEGER, dfKBytesUsed INTEGER, dfKBytesAvail INTEGER, dfPerCentKBytesCapacity INTEGER, dfInodesUsed INTEGER, dfInodesFree INTEGER, dfPerCentInodeCapacity INTEGER, dfMountedOn DisplayString, dfMaxFilesAvail INTEGER, dfMaxFilesUsed INTEGER, dfMaxFilesPossible INTEGER } ...
Do these take care of the first three? I'll take a look at adding an entry for cache memory utilization.
Alan
--------------------------------------------------------------- Alan G. Yoder agy@netapp.com Network Appliance, Inc. 2770 San Tomas Expressway voice 408-367-3031 Santa Clara, CA 95051 fax 408-367-3451 ---------------------------------------------------------------