My Oracle Support Banner

High latencies registered when enabling dNFS and ZFS Appliance (Doc ID 1586431.1)

Last updated on FEBRUARY 15, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.3 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

non-RAC -- 112036 or 112037 -- Linux x86-64 (RHEL6)

High latencies with a ZFS file system and dNFS.
3000+ ms latency in the InfiniBands (IB)
 
These servers have both IB and 10gE interfaces.  The 10gE are also connected to NFS servers (just not ZFS/dNFS capable)
The servers do not have 10gE to the ZFS.  It has been tried the ZFS via 1gE and works (ie, no latency spikes) but 40x slower.

Checked but still no solution:




Cause

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!


In this Document
Symptoms
Cause
Solution
References


My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.