FW V06.02.00/HAFM SW V08.02.00 HP StorageWorks Edge Switch Release Notes (AA-RTDZF-TE, September 2004)
Table Of Contents
- Edge Switch release notes
- About this document
- Release notes information
- Intended audience
- Firmware version 06.02.00-22
- Other edge switch documentation
- CD-ROM directory structure
- Supported configurations
- Cable requirements
- Important information
- HAFM and firmware compatibility
- Prerequisites for installing and using firmware 06.02.00
- Upgrading from an earlier version of firmware
- Upgrading firmware on an edge switch from 04.xx.xx to 05.xx.xx
- Considerations for downgrading the version of firmware
- HAFM upgrade required for firmware version 06.xx.xx
- Second-generation switch support
- OSMS change
- Default zone is disabled by default
- Some IP addresses must be avoided
- Hard zoning
- Zoning change RSCN control
- SNMP changes
- Zoning limitations
- Using the same firmware
- Reinstalling feature licenses
- Disconnecting the null modem cable
- CTP controls port lights
- Ethernet switch support
- Full Volatility
- CLI threshold alerts
- CLI show.eventLog command
- MIHPTO value
- Route management-Preferred Path
- EWS enhancements
- Full-fabric capability for Edge Switch 2/12
- Hard zoning for Edge Switch 2/12 and Edge Switch 2/24 switch loop ports
- Known issues
- Certain unauthorized devices may increase response time for fabric operations under specific conditions with the Edge Switch 2/24
- HSG80 transparent mode not supported with IBM AIX
- HSG80 transparent mode not recommended with controller in SCSI-3 mode with HP-UX operating systems
- ISL disconnect causes NOS error with the OpenVMS operating systems
- Support for speed Auto-Negotiate
- Ports may accumulate spurious events
- Possible switch reset after power failure or power off sequence
- Deleting a certain switch binding member using EWS may cause an error
- SNMP issues
About this document
19HP StorageWorks Edge Switch release notes
When a Preferred Path is defined for all of the ports on a switch, it provides a
reasonable level of predictability because it isolates changes in routing only to the
ports affected by a particular “preferred path.” Thus, if the “preferred path” goes
away, only the ports assigned to the path are rerouted to other paths. Conversely, if
the “preferred path” is re-established, the ports assigned to the path are rerouted
back to the path.
The Preferred Path enhancement modifies the behavior of Open Trunking by
providing guidance for the balancing function. The paths are balanced according
to the Open Trunking guidelines after the Preferred Path selections have been
assigned. Thus, the Preferred Path selections are eliminated from the list of
candidates to be moved off of a flow.
The Preferred Path configuration allows you to assign the exit port assignment,
but is subject to the standard rules regarding the FSPF protocol. Thus, if the
indicated path is not a least-cost route, the FSPF algorithm takes precedence.
Likewise, any port that does not have a Preferred Path definition is subject to the
static load-balance rules. And finally, a Preferred Path is not excluded from the
FSPF path selection operation for undefined or recovered paths.
Note: Activating a new Preferred Path will cause a reroute to occur if the Preferred Path
is different from the current path. In congested environments, with traffic on the current
path, a reroute can cause an out-of-order frame (OOOF) at the destination device.
Reroutes are a natural activity in any Fibre Channel fabric when the network is
modified. For example, reroutes occur when ISLs are added or lost or when new
switches are added to the fabric. Fibre Channel devices are designed to handle errors
such as OOOFs, but some devices send error messages. In FICON environments, an
IFCC error can result from an OOOF. To avoid these error messages, vary devices s
offline before a Preferred Path is activated, and then return the devices to online status
afterwards.
EWS enhancements
With firmware 06.00.00 and later, EWS enhancements include support for
managing the SANtegrity Binding feature and Enterprise Fabric Mode, and
providing the Link Incident (LIN) log and the Open Trunking log.