Sun Rack II PDU ( Power Distribution Unit ) Network auto negotiation issues.

Asset ID:	1-72-1568509.1
Update Date:	2016-10-25
Keywords:

Solution Type Problem Resolution Sure

Solution 1568509.1 : Sun Rack II PDU ( Power Distribution Unit ) Network auto negotiation issues.

Related Items


Exadata X3-2 Hardware
 Oracle SuperCluster T5-8 Full Rack
 SPARC SuperCluster T4-4 Full Rack
 Big Data Appliance X3-2 Full Rack
 Exalogic Elastic Cloud X3-2 Eighth Rack
 Big Data Appliance X3-2 Hardware
 Exadata Database Machine X2-2 Qtr Rack
 Exalogic Elastic Cloud X3-2 Quarter Rack
 Oracle Exalogic Elastic Cloud X2-2 Qtr Rack
 Oracle Exalogic Elastic Cloud X2-2 One-Eighth Rack
 Sun ZFS Backup Appliance
 Exadata X3-2 Half Rack
 Oracle SuperCluster T5-8 Half Rack
 Oracle Exalogic Elastic Cloud X2-2 Full Rack
 Exadata Database Machine X2-8
 Exalogic Elastic Cloud X3-2 Hardware
 Exadata X3-2 Full Rack
 Exadata Database Machine X2-2 Full Rack
 Exalogic Elastic Cloud X3-2 Half Rack
 Exalogic Elastic Cloud X3-2 Full Rack
 Exadata X3-8 Hardware
 Big Data Appliance Hardware
 Exadata Database Machine X2-2 Half Rack
 Exadata Database Machine X2-2 Hardware
 Exadata X3-2 Eighth Rack
 SPARC SuperCluster T4-4 Half Rack
 Oracle Exalogic Elastic Cloud X2-2 Hardware
 Oracle SuperCluster T5-8 Hardware
 Exadata X3-2 Quarter Rack
 SPARC SuperCluster T4-4
 Exadata Database Machine V2
 Oracle Exalogic Elastic Cloud X2-2 Half Rack
 Big Data Appliance X3-2 Starter Rack

Related Categories


PLA-Support>Eng Systems>Exadata/ODA/SSC>Oracle Exadata>DB: Exadata_EST

Applies to:

Exadata Database Machine X2-2 Qtr Rack - Version All Versions and later
Exadata Database Machine X2-2 Hardware - Version All Versions and later
Oracle Exalogic Elastic Cloud X2-2 Full Rack - Version X2 and later
Oracle Exalogic Elastic Cloud X2-2 Hardware - Version X2 and later
Oracle Exalogic Elastic Cloud X2-2 One-Eighth Rack - Version X2 and later
Information in this document applies to any platform.

Rack PDU Network auto negotiate issues - Document created using inputs from Exadata Email Alias resource .

Symptoms

While connecting the Rack PDU management Ethernet port to a switch, The auto negotiated speed is 10M/Half.
Even after configuring to 100M/Full at switch side, the connection cannot be established.

Cause

Rack PDU/ Firmware Design.

The RM-I (PDU) supports both, 10/100 Full Duplex and 10/100 Half Duplex but not auto-negotiation as defined in IEEE802.3u.
The RM Module uses “Parallel Detection” which means it just looks, what is offered on the other side and uses it.
If the other port is on “auto negotiation”, than the procedure below will most likely result in a half-duplex mode.
This can be avoided, if the switch port is also configured as 100BaseT-full duplex.

The solution to this issue is to "Force" speed & Duplex to 100 Full Duplex on the switch port

Solution

The PDU does not have an option to force 100M/Full from Management interface.

If the PDU is set to an incorrect Network Speed /Duplex Setting, PDU requires a reset to auto-negotiate again.

To set the auto negotiated Network speed on Exadata PDU management Ethernet port from 10M/Half to 100M/Full

Steps Required :-

a) Disconnect the network cable from the Switch Port.

b) Reset the PDU as follows:

i. Press and hold the reset button until you see a five-second countdown displayed on the LCD screen (see PDU Metering Unit LCD Screen and Reset Button). You must press the reset button for 20 seconds before the five-second countdown begins.

ii. During the five-second countdown, release the reset button and then tap the button again to force the metering unit to reset.

( Refer - Sun Rack II Power Distribution Unit User's Guide )

c) While resetting, plug the network cable into desired switch port. Upon boot up it should connect at 100M/Full.

Attachments

This solution has no attachment