Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Release 5.2(8a) (OL-27554-05, May 16, 2013)

Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Release 5.2(8a)

OL-27554-05

Upgrading Your Cisco MDS NX-OS Software Image

General Upgrading Guidelines

Follow these general guidelines before performing a software upgrade:

• Review the nondisruptive upgrade path to Release 5.2(8a) in Table 11.

• Install and configure dual supervisor modules before the upgrade.

• Issue the show install all impact upgrade-image CLI command to determine if your upgrade will

be nondisruptive.

• Be aware that some features impact whether an upgrade is disruptive or nondisruptive:

–

Fibre Channel Ports: Fibre Channel ports can be nondisruptively upgraded without affecting

traffic on the ports. See Table 11 for the nondisruptive upgrade path for all NX-OS and SAN-OS

releases.

–

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 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.

–

FICON: If you have FICON enabled, the upgrade path is different. See the “FICON Supported

Releases and Upgrade Paths” section on page 19.

Note In addition to these guidelines, you may want to review the information in the “Limitations and

Restrictions” section prior to a software upgrade to determine if a feature may possibly behave

differently following the upgrade.

Nondisruptive Upgrade Paths

Use Table 11 to determine your nondisruptive upgrade path to Cisco MDS NX-OS Release 5.2(8a). Find

the image release number you are currently using in the “Current Release” column of the table and

follow the steps in the order specified to perform the upgrade.

Note The software upgrade information in Table 11 applies only to Fibre Channel switching traffic.

Upgrading system software disrupts IP traffic and intelligent services traffic.

Note Before upgrading to Cisco MDS NX-OS Release 5.2(8a) on a Cisco MDS 9509 or 9506 switch, see

Table 14 for specific guidelines.

Caution Upgrading to Cisco NX-OS Release 5.2(8a) without first upgrading to Release 5.0(x) is not

recommended and is not supported, and might result in configuration loss. If you are upgrading to Cisco

NX-OS Release 5.2(8a) from any release other than Release 5.2(8), Release 5.2(6b), Release 5.2(6a),

Release 5.2(6), Release 5.2(2d), Release 5.2(2a), Release 5.2(2), or Release 5.2(1), the only supported

upgrade path to Release 5.2(8a) is from Release 5.0(x).