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
Install and configure dual supervisor modules.
•
Issue the show install all impact upgrade-image CLI command to determine if your upgrade will
•
be nondisruptive.
Be aware that you need to enable Telnet following the upgrade. See
•
an Upgrade" section on page
•
Follow the recommended guidelines for upgrading a Cisco MDS 9124 or MDS 9134 Switch as
described in
Follow the guidelines for upgrading a single supervisor switch as described in
•
Disruptive Upgrade on a Single Supervisor MDS Family Switch" section on page
Make note of the information concerning SANTap when performing upgrades on a Cisco MDS
•
9222i switch, as described in
Provisioned on the SSM" section on page
Be aware of the impact of an upgrade on VSAN 4079 if you are upgrading from SAN-OS Release
•
3.x to NX-OS 4.2(1a). See the
Be aware that some features impact whether an upgrade is disruptive or nondisruptive:
•
Use
Table 8
the image release number you are currently using in the Current column of the table, and use the path
recommended.
The software upgrade information in
Note
system software disrupts IP traffic and SSM intelligent services traffic.
OL-19964-02
"Upgrading a Cisco MDS 9124 or Cisco MDS 9134 Switch" section on page
Fibre Channel Ports: Traffic on Fibre Channel ports can be nondisruptively upgraded. See
–
Table 8
for the nondisruptive upgrade path for all NX-OS and SAN-OS releases.
SSM: Intelligent services traffic on the SSM, such as SANTap, NASB, and FC write
–
acceleration, is disrupted during an upgrade. SSM Fibre Channel traffic is not.
Gigabit Ethernet Ports: Traffic on Gigabit Ethernet ports is disrupted during an upgrade or
–
downgrade. This includes IPS modules and the Gigabit Ethernet ports on the MPS-14/2 module,
the MSM-18/4 module, and the MDS 9222i switch. Those nodes that are members of VSANs
traversing an FCIP ISL are impacted, and a fabric reconfiguration occurs. iSCSI initiators
connected to the Gigabit Ethernet ports lose connectivity to iSCSI targets while the upgrade is
in progress.
Inter-VSAN Routing (IVR): With IVR enabled, you must follow additional steps if you are
–
upgrading from Cisco SAN-OS Release 2.1.(1a), 2.1(1b), or 2.1.(2a). See the
IVR Enabled" section on page 19
–
FICON: If you have FICON enabled, the upgrade path is different. See the
Releases and Upgrade Paths" section on page
to determine your nondisruptive upgrade path to Cisco MDS NX-OS Release 4.2(1a), find
Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Release 4.2(1a)
Upgrading Your Cisco MDS NX-OS Software Image
19.
"Upgrading an MDS 9222i Switch with SANTap or Invista is
19.
"Upgrading Effect on VSAN 4079" section on page 19
for these instructions.
17.
Table 8
applies only to Fibre Channel switching traffic. Upgrading
"Enabling Telnet Required After
22.
"Performing a
23.
for details.
"Upgrading with
"FICON Supported
15
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