HP StorageWorks Multi-protocol Router XPath OS 7.4.1c Release Notes (AV-RW5LL-TE, December 2006)

Issue
Description
Edge fabric switch booting and
EX_Ports
Certain configuration values and versions of Fabric OS switches in edge fabrics
might cause EX_Ports on the Router to be disabled when the switches are rebooted.
EvidenceoftheunexpecteddisabledEX_PortcanbeseenintheRouter’sport
display:
#switchshow
:
7 id AN No_Light disabled EX_PORT
(Last error: Failed to init in time)
Workaround for switches running FOS 3.x /4.x:
• Issue the diagdisablepost command on edge switches
connected to Router EX_Ports.
• Upgrade edge switches to Fabric OS 3.x/4.x.
• Manually enable any disabled EX_Ports when the condition occurs.
Edge fabric s
egmentation
If an edge fab
ricinwhichmultipleEX_Portsarelinkedtomultipleedgeswitches
segments into two or more fabrics, all EX_Ports connected to any of the new fabrics
resulting f
rom the segmentation will be disabled due to a fabric ID (FID) conflict
error. If the ed ge fabric remerges into a single fabric, the EX_Ports that were
disabled remain disabled until administratively enabled. This characteristic is by
design, to prevent erroneous meta-SAN configurationsfromforming.
Fibre Channel test equipment
Fibre Channel test equipment must use a maximum frame size of 2048 bytes or less
when used with the MP Router.
Fibre Channel HBAs are not affected by this issue, because maximum frame size
is typically negotiated during N_Port login (PLOGI).
Table 7 FCIP service
Issue
Description
Serverle
ss backup
applicat
ions and
routed f
abrics
With routed fabrics, serverless backup using SCSI Extended Copy (XCOPY)
commands
is not supported if the backup server and copy manager reside on
different fabrics and the target descriptor(s) in the Extended Copy command
contains port IDs (descriptor type codes E1h or E2h).
FCIP with Continuous
Access EVA, XP,
or HSG80 DRM
(exchange-based
trunking feature)
MP Router Fibre Channel over IP (FCIP) ports utilized for Continuous Access EVA,
XP, or HSG80 DRM must have the exchange-based trunking feature disabled.
Disabling exchange trunking across FCIP port processors can be accomplished
using the following commands:
portCfgFcip -m 2
FCIP portcfgfcip [-m LOAD_BAL (1-exchange, 2-SID_DID,
3-none]
The default is 1. Must be set to 2 or 3 for Continuous Access EVA, XP, or HSG80
DRM.
Multiple FCIP Links
not supported with
Continuous Access
EVA or HSG80 DRM
Support for multiple FCI P Links between locations was added in XPath 7.0.3b.
This feature is supported with Continuous Access XP only.
FCIP
with Continuous
Acce
ss XP
AllContinuousAccessXPconfigurations using the MP Router require a m inimum
of 45
Mbps IP bandwidth.
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