Cisco Cisco MDS 9000 NX-OS Software Release 4.2
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Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Release 4.2(7b)
OL-19964-09
Upgrading Your Cisco MDS NX-OS Software Image
Guidelines for Upgrading to NX-OS Release 4.2(7b)
This section lists guidelines that are specific to upgrading your Cisco MDS NX-OS software image to
NX-OS Release 4.2(7b), and includes the following topic:
NX-OS Release 4.2(7b), and includes the following topic:
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Slow Drain Feature is On Following Upgrade
Cisco NX-OS Release 4.2(7b) includes the slow drain feature. This new feature is enabled by default,
so it is on once you upgrade to Release 4.2(7b). For additional information about this feature and a link
to the documentation for it, see the
so it is on once you upgrade to Release 4.2(7b). For additional information about this feature and a link
to the documentation for it, see the
.
Debug Messages Displayed During Upgrade
If you have the port monitor enabled when you upgrade to NX-OS Release 4.2(7b), the following
messages are displayed:
messages are displayed:
2010 Jul 19 04:29:16 interop-9509 %PMON-SLOT2-2-PMON_CRIT_INFO: Port Monitor Critical
Information: policy slowdrain invalid,object 1 interval is 0; setting to default 10.
2010 Jul 19 04:29:16 interop-9509 %PMON-SLOT2-2-PMON_CRIT_INFO: Port Monitor Critical
Information: policy slowdrain invalid,object 2 interval is 0; setting to default 10.
These debug messages are displayed if you upgrade to an NX-OS release that has slow drain enabled by
default, such as NX-OS Release 4.2(7b), from a release that did not have the slow drain feature, such as
NX-OS Release 4.2(5). The messages are triggered when a module becomes aware of the new slow drain
feature that was not present in NX-OS software prior to NX-OS Release 4.2(7a). These message are
harmless and can be ignored.
default, such as NX-OS Release 4.2(7b), from a release that did not have the slow drain feature, such as
NX-OS Release 4.2(5). The messages are triggered when a module becomes aware of the new slow drain
feature that was not present in NX-OS software prior to NX-OS Release 4.2(7a). These message are
harmless and can be ignored.
You should not see these messages when you upgrade from a release that has the slow drain feature to
another release that also has the slow drain feature, such as when you upgrade from NX-OS Release
4.2(7x) to Release 5.0(4b).
another release that also has the slow drain feature, such as when you upgrade from NX-OS Release
4.2(7x) to Release 5.0(4b).
Upgrading from NX-OS Release 4.2(5) to Release 4.2(7b) with DMM, IOA, or SME Configured
If you plan to upgrade from NX-OS Release 4.2(5) to NX-OS Release 4.2(7b), be aware that in some
corner cases, the upgrade might be disruptive if you have one of the following applications
configured on your switch: DMM, IOA, or SME.
corner cases, the upgrade might be disruptive if you have one of the following applications
configured on your switch: DMM, IOA, or SME.
You can detect this issue by entering the following command:
switch#show incompatibility-all system bootflash:isan-427
The following configurations on active are incompatible with the system image
1) Service : fc-redirect , Capability : CAP_FEATURE_FC_REDIRECT_IVR_SUPPORT_ENABLED
Description : FC-Redirect IVR Support is Enabled
Capability requirement : STRICT