SNMP Network Counters are Too Small and Easily Overrun

Asset ID:	1-72-2350638.1
Update Date:	2018-02-26
Keywords:

Solution Type Problem Resolution Sure

Solution 2350638.1 : SNMP Network Counters are Too Small and Easily Overrun

Applies to:

Sun ZFS Storage 7420 - Version All Versions to All Versions [Release All Releases]
Information in this document applies to any platform.

Symptoms

Counters for SNMP are too low for faster interfaces. The numbers easily wrap and are not useful.

Changes

Cause

SNMP counters are currently only 32-bit. Newer network technology, such as Gigabit Ethernet and Infiniband, need more space to record useful numbers.

Solution

This is a known issue. A software enhancement is currently under consideration.

References

<NOTE:2074261.1> - ZFS Storage Appliance (ZFSSA) Software may Fail to Gather Analytics Data and the Browser User Interface (BUI) and Command Line Interface (CLI) may Slow Down or Hang Due to Insufficient Memory
<NOTE:166650.1> - Working Effectively With Oracle Support - Best Practices
<NOTE:1307224.1> - FAB: Standard: Reactive: RW2 SIM heartbeat timeout (aka White Light Special) scenario with RW2, which will cause one of the SIMs to go offline and show up as one of the paths to the JBOD removed.
<NOTE:2021771.1> - Oracle ZFS Storage Appliance: Software Updates
<BUG:27225327> - REQUEST FOR 64-BIT SNMP COUNTERS

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