Cisco MDS 9000 Family Release Notes for Cisco MDS SAN-OS Release 3.2(2c) (OL14116-03, November 2007)

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Cisco MDS 9000 Family Release Notes for Cisco MDS SAN-OS Release 3.2(2c)
OL-14116-03
Limitations and Restrictions
Deprecated iSCSI Features
The following iSCSI features are no longer supported in Cisco MDS 9000 SAN-OS release 3.2(1):
• iSNS server or iSNS client
• Trespass feature
• Pass-through and cut-through modes (only iSCSI CRC with store and forward is supported)
• iSCSI interface specific TMF queuing option (perform TMF queuing by default)
Data Mobility Manager
Use the following guidelines when running Cisco Data Mobility Manager (DMM):
• If you have a DMM configuration, the DMM job may transition to a Reset state during a supervisor
switchover. In that case, the administrator should recover from the Reset state by following the
instructions in the Cisco MDS 9000 Data Mobility Manager Configuration Guide.
• A storage type job in DMM cannot be restored from a saved ASCII configuration. When a storage
job is created in DMM, the SSM generates Virtual Initiators (VIs) for each storage type job. Each
request to generate VIs can potentially return different VI pWWNs. As a result, if an ASCII
configuration for a storage type job is reapplied, there is a possibility the VIs generated by the SSM
are different. In that case, the session configurations in the saved configuration are no longer valid.
• Following a fcdomain restart disruptive command, the DMM process cleans up all configurations
and transitions the DMM job in the affected VSAN to the Reset state. During the cleanup, some
virtual devices are not deleted correctly, which results in an incomplete cleanup. As a result, when
the administrator validates the DMM job from the CLI or restarts or schedules the DMM job from
Fabric Manager, the operation fails. If this situation occurs with a DMM job configured on the SSM,
then reload the SSM to recover the DMM job.
• For active-passive arrays, DMM requires that the administrator create two DMM jobs: one for the
active LUNs from one controller and the other for the active LUNs on the other controller. DMM
provides the Server Lunmap Discovery (SLD) tool to detect if the array is in fact active-passive. On
the IBM DS-4500 storage device, the SLD cannot successfully detect active-passive LUNs on a
storage port. As a consequence, the administrator will have to determine which LUNs are active on
which port and create DMM jobs accordingly.
• A DMM job that is in progress might fail if you change the clock on an MDS switch by configuring
the NTP server.
Cisco MDS 9134 Multilayer Fabric Switch
The Cisco MDS 9134 Multilayer Fabric Switch does not support the following Cisco MDS SAN-OS
features:
• IVR
• Remote SPAN
• Translative loop support
• FCC—No generation, quench reaction only
In addition, the following features have these limits:
• VSANs—16 maximum