Limitations and Restrictions
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
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Cisco MDS 9134 Multilayer Fabric Switch
The Cisco MDS 9134 Multilayer Fabric Switch does not support the following Cisco MDS SAN-OS
features:
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In addition, the following features have these limits:
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Using NPIV on Cisco Fabric Switches
In Cisco SAN-OS Release 3.2(1), the Cisco MDS 9134 Switch, the Cisco MDS 9124 Switch, the Cisco
Fabric Switch for HP c-Class BladeSystem, and the Cisco Fabric Switch for IBM BladeCenter do not
support hardware-enforced zoning for devices attached to an F port that is participating in NPIV. This
capability will be supported in a future release.
If NPIV is enabled on a Cisco MDS 9134 Switch, the Cisco MDS 9124 Switch, the Cisco Fabric Switch
for HP c-Class BladeSystem, and the Cisco Fabric Switch for IBM BladeCenter and one of the devices
connected through an F port that is participating in NPIV goes down, all devices connected through the
same F port will lose connectivity. This situation can be corrected by issuing the shutdown command,
followed by the no shutdown command. This issue will be resolved in a future release.
Cisco MDS 9222i Multiservice Modular Switch and Cisco MDS 9000 18/4-Port
Multiservice Module
The Cisco MDS 9222i Multiservice Modular Switch and the Cisco MDS 9000 18/4-Port Multiservice
Module (MSM-18/4) support one iSCSI forwarding mode that is equivalent to store-forward on the
MPS-14/2 module.
The Cisco MDS 9222i and the MSM-18/4 support header-digest, but not data-digest in Cisco SAN-OS
3.2(1).
Cisco MDS 9000 Family Release Notes for Cisco MDS SAN-OS Release 3.2(1)
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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.
IVR
Remote Span
Translative loop support
FCC - no generation, quench reaction only
VSANs - 16 maximum
SPAN - 1 session maximum
OL-14116-01
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