HP StorageWorks Fabric OS 5.2.3 Release Notes (AA-RWEYD-TE, November 2007)
FC4–16IP iSCSI blade for
the 4/256 SAN Director
(continued)
• Do not inser t the blade until the system is running Fabric OS 5.2.1b.
• iSCSI virtual target creation involves adding LUNs to the virtual targets. The
user discovers the LUNs by executing the fclunquery command. Testing
has revealed that some devices do not respond properly to the LUN query.
The user will need to use tools from the array vendor to determine LUN
information required for iSCSI target creation.
• Any uppercase letters used for the CHAP user name will be transformed
into lowercase.
• Users may install up to four FC4–16I P iSCSI blades per 4/256 SAN
Director chassis, or any combination of up to four blades (FC4–16IP and
B-Series MP Router blades) , not exceeding the individual blade limit per
chassis. Valid combinations include:
• Three FC4–16IP blades + one B-Series MP Router blade
• Two FC4–16 IP blades + two B-Series MP Router blades
• One FC4–16IP blade + two B-Series MP Router blades
• Two FC4–16IP blades + one B-Series MP Router blade
Firmware upgrade/
downgrade
• When up
grading from Fabric OS 5.1.0x to 5.2.0x, if there are two or
more inter-fabric links (IFLs) connected to an edge fabric, one IFL will stay
onlin
eandtheotherIFLswillgoonlineandoffline. This will cause a
temporary traffic disruption going from multiple IFLs to one IFL and then
back
to multiple IFLs. This is due to the new front dom ain consolidation
feat
ureinFabricOS5.2.0,wheretheIFLsconnectedtothesameedge
share the same front d omain.
• WhendowngradingfromFabricOS5.2.0to5.1.x,FCtrafficwillbe
dis
rupted if there is front domain consolidation prior to the downgrade,
eveninthecaseofasingleIFL.
• Upon firmware download the FC4–16IP blade does not preserve disabled
GE_Ports in disabled state. If you want to retain GE_Ports in a disabled
state across firmware download, you must configure them as persistently
disabled.
• In a large fabric with a large zoning database (for example, 2560 ports
with a 1 MB zoning database), a non-disruptive firmware download on
aBrocade3850or3900canresultinanE_portoffline transition. The
E_Port offline transition causes a fabric reconfiguration and can cause
momentary frame loss. The 4 Gb/s switches do not experience this issue.
• FCIP traffic is disrupted in an upgrade from Fabric OS 5.2.0a to Fabric
OS 5.2.0b.
Fabric OS — CU commands
• The slotOff and slotOn commands are now obsolete; use
slotPowerOff and slotPowerOn instead. The portLogPortShow
command is also now obsolete.
• The Q uickLoop feature and related commands a re no longer supported on
Fabric OS versions 5.1.0 and later .
Distance mode
Distance setting is not persistent. After a configuration uploads and
downloads, distance settings are lost and the desired distance is shown as 0.
FC Routing
• If an HP StorageWorks MP Router is present in the backbone fabric, the
command fcrDisable may take up to 8 minutes to complete. If the
MP Router is replaced by a B-Series MP Router blade (FR4-18i) or an HP
StorageWorks 400 MP Router, the command completes immediately.
• EX_Port trunking is not enabled by default.
• Fabric OS 5.2.0 introduces the EX_Port trunking feature. This feature
should be enabled only if the entire configuration is running Fabric OS
5.2.0 or later. Enabling the EX_port trunking feature on a switch running
Fabric OS 5.2.0 or later in a configuration containing a Fabric OS 5.1.0
switch causes the Fabric OS 5.1.0 switch to panic.
• When an unstable edge fabric that has multiple EX_Port connections is in
a transitional state, on rare occasions one of the EX_Ports may detect a FID
conflict and be disabled. If this occurs, manually re-enable the port.
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