Excessive Error Counts; Hardware Updates; Verify Licenses Before Replacing Hardware; Cables - HP StorageWorks 2/8-EL - SAN Switch Release Note

Excessive Error Counts

Encoding Out Error counts vary under the following conditions:

Hardware Updates

The following sections list SAN Switch 2/8 hardware updates.

Verify Licenses Before Replacing Hardware

Prior to replacing a switch or motherboard, display and record the current feature
licenses active in the unit. Additional licenses could have been added to the switch
after the installation. Licenses that are active can be viewed from a Telnet session
using the
GUI.

Cables

Optical cables for the Fibre Channel SAN Switches must be ordered separately.
Cables that are 500 meters or less for 1 Gbps and 300 meters or less for 2 Gbps,
should be multi-mode Fibre Channel cables. Cables that are longer than 500
meters should be single-mode.
Multi-mode optical cables are connected to short-wave Small Form Factor
Pluggable (SFP) modules in Fibre Channel SAN Switches. Single-mode optical
cables are connected to longwave SFP modules in the Fibre Channel SAN
Switches. Multi-mode cables should use 50/125 optical fibers, SC Duplex
connectors with a PC finish.
Use of 62.5/125 should be restricted to situations where 62.5/125 optical fiber was
previously installed and the link lengths are to be kept shorter than 200 meters at 1
Gbps and shorter than 150 meters for 2 Gbps.
SAN Switch 2/8 Version 3.0.2k Release Notes
When the switch port is set to auto-negotiation, and an N-port device is
connected, the port synchronization takes longer to complete, and a larger
error count displays.
If a 1Gbps signal is received and the speed negotiation is transmitting at
2 Gbps, a larger error count displays.If the portSpeed and N-port device are
configured to 2 Gbps, encoding out errors are minimal. Similarly, if the
portSpeed and N-port device are configured to 1 Gbps, encoding out errors are
minimal.
If auto-negotiation is set, the potential error count can be excessive.
licenseshow
command, or they can be viewed from the Web Tools
Hardware Updates
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