.SAN design reference guide Vol. 1-5 785350-001

WARNING ZONE-ZONEGROUPADDFAIL, 3, WARNING - port 7 Out of CAM entries
WARNING ZONE-SOFTZONING, 3, WARNING - port 7: zoning enforcement changed
to SOFT
The zoning configuration has exceeded limits, forcing the specified port to change from
hardware-enforced zoning to software-enforced zoning. Other zone members remain hardware
enforced. These warning messages appear at zoning configuration time (for port-level zoning) or
dynamically at run time (for WWN zoning).
Primary management switch recommendations (B-series Fibre Channel switches)
Recommendations for primary management switches follow:
• Designate one switch in the fabric as the primary management switch and use it for all
management and control, including zoning, Time Services, fabric management interface, and
WebTools. Using one switch for access prevents multiple administrators from making changes
to switches in the fabric at the same time. If you have a core-edge topology, HP recommends
you use a core switch as the primary management switch. Typically, a core switch is connected
directly to all other switches in a core-edge fabric, providing optimal communication. In SANs
with mixed Fabric OS, these functions must only be executed from a switch running the highest
Fabric OS. For example, if a SAN contains switches running Fabric OS 3.x and switches
running Fabric OS 5.x, these functions must be executed from a switch running Fabric OS
5.x.
• Configure the primary management switch in the fabric as the preferred principal switch by
using the fabricprincipal command.
• How a principal switch is assigned can vary in a fabric. That assignment depends on the state
of the fabric, the switch WWN, and whether other switches or fabrics merge with that fabric.
The principal switch in a fabric may not remain a principal switch once new switches are
added to the original fabric or the original fabric is reconfigured. The Fibre Channel standards
alone specify the mechanisms to implement the fabricprincipal command. These
mechanisms allow a preference for a switch that requests to be the principal switch in a fabric.
However, they do not absolutely guarantee that a switch that requests to be the principal
switch actually achieves that status.
The primary management switch is used by the fabric management interface as the main
access point to that fabric.
• Fabric time synchronization is implemented differently based on the security setting. For
switches in a fabric where security is not enabled, synchronize time with the principal switch
in the fabric. The principal switch in the fabric synchronizes its clock with an NTP time server
by identifying the time server with the tsclockserver command. In a fabric where security
is enabled, switches synchronize time with the primary Fibre Channel switch, which may or
may not be the principal switch.
122 B-series switches and fabric rules