HP StorageWorks Fabric OS 5.2.3 Release Notes (AA-RWEYD-TE, November 2007)

4/256 SAN Director
• Customers upgrading SAN Director 2/128 units from Fabric OS 5.0.5
to 5.2.0 while in chassisconfig option 3 or 4, will not get sufficient
notification in the session error message or firmwaredownloadstatus
command about how to correct the problem.
• Before moving the slider UP on a Control Processor blade that is being
activated, observe that the amber LED is not ON for the active CP for at
least 5 seconds and that all LEDs are off on the new inserted CP.
• In a core-edge design, when a fully-populated 384–port 4/256 SAN
Director (populated with eight F C4–48 blades) is an edge switch in a large
SAN, it c an experience high CPU utilization and may panic if it becomes a
principal switch. SAN design best practice recommends deploying a high
port-count switch as both core and principal switch to reduce fabric stress
and provide ease of management.
FC4–48 port blade for the
4/256 SAN Director
• The HP St
orageWorks 4/48 SAN Director blade requires a minimum of
Fabric OS 5.2.0a. Do not insert the FC4–48 blade into the 4/256 chassis
until the chassis is running Fabric OS 5.2.0a or later. After Fabric OS has
been updated and an FC4–48 has been installed, the Fabric OS will not be
able to be downgraded earlier than 5.2.0a until the FC4–48 is removed.
• The FC4–48 blade supports only core PID (fmt 1) in Secure Fabric OS.
• NPIVissupportedonlyinports0to15oftheFC4–48blade.
• Regarding long distance buffer credits, the FC4–48 has 560 credits
avai
lable for long distance. The FC4–32 blade has 624 credits available
for long distance.
• Regarding port mirroring, the FC4–48 is restricted to one F-port mirroring
all
owed between shared areas for por ts 16–47. On the FC4–48, port
mir
roring on ports 0–15 behaves the same as the FC4–32 blade.
• Th
e configure command gives only a maximum login per port setting.
Thecommandallowsover127,whereportsfortheFC4–48bladewill
honor that value as long as its share area values are 127 or less.
• Before replacing an FC4–21 blade with an FC4–48 blade, restore ports
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6–31 of th e FC4–32 blade, if these ports are used for port swapping.
FailuretodosowillfaulttheFC4–48blade.Theonlywaytorestorethe
original settings is to add the FC4–32 blade back into the slot and port
swap the ports back to the port’s d efault setting.
• FC4–48 ports should not belong to the zone or in an administrative
domain in which FICON devices are present.
• The FC4–48 blade does not support loop. Private L_Ports will be shown on
these ports in switchshow, but will not participate in the fabric.
• The porttest and spinfab commands on any platform will not work
on E_Por ts connected to an FC4–48 port.
• The FC4–48 Fibre Channel port blade is not supported to connect to the
SystemzenvironmentsviaFICONchannelsorviaFCPzLinuxonSystemz.
To use the 4/256 SAN Director to attach to the System z envir onment, use
the FC4–16 or FC4–32 Fibre Channel port blades.
• In a zoning configuration with members D and P, where P is greater than
or equal to 256, remove these configurations before downgrading to an
earlier firmware version (5.1.x or 5.0.x). Otherwise, the downgrade will
notbeHAcompatiblewithearlierversions.
HP StorageWorks Fabric OS 5.2.3 release notes
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