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
Table 7
Current Release with
FICON Enabled
SAN-OS 2.0(2b)
SAN-OS 1.x
Upgrading with IVR Enabled
An Inter-Switch Link (ISL) flap resulting in fabric segmentation or a merge during or after an upgrade
from Cisco MDS SAN-OS Release 2.0(x) to a later image where IVR is enabled might be disruptive.
Some possible scenarios include the following:
•
•
•
If this problem occurs, syslogs indicate a failure and the flapped ISL could remain in a down state
because of a domain overlap.
This issue was resolved in Cisco SAN-OS Release 2.1(2b); you must upgrade to Release 2.1(2b) before
upgrading to Release 3.3(3). An upgrade from Cisco SAN-OS Releases 2.1(1a), 2.1(1b), or 2.1(2a) to
Release 2.1(2b) when IVR is enabled requires that you follow the procedure below, and then follow the
upgrade guidelines listed in the
If you have VSANs in interop mode 2 or 3, you must issue an IVR refresh for those VSANs.
To upgrade from Cisco SAN-OS Releases 2.1(1a), 2.1(1b), or 2.1(2a) to Release 2.1(2b) for all other
VSANs with IVR enabled, follow these steps:
Configure static domains for all switches in all VSANs where IVR is enabled. Configure the static
Step 1
domain the same as the running domain so that there is no change in domain IDs. Make sure that all
domains are unique across all of the IVR VSANs. We recommend this step as a best practice for
IVR-non-NAT mode. Issue the fcdomain domain id static vsan vsan id command to configure the static
domains.
Note
Issue the no ivr virtual-fcdomain-add vsan-ranges vsan-range command to disable RDI mode on all
Step 2
IVR enabled switches. The range of values for a VSAN ID is 1 to 4093. This can cause traffic disruption.
OL-14116-11
FICON Nondisruptive Upgrade Path to SAN-OS 3.3(3)
Upgrade Path
Use the interface shutdown command to administratively shut any Fibre
Channel ports on Generation 1 modules that are in an operationally down
state before nondisruptively upgrading from SAN-OS Release 2.0(2b) to
SAN-OS Release 3.0(2) or SAN-OS Release 3.0(3b), and then upgrade to
Release 3.3(1c). An operationally down state includes
not-connected, SFP not present
output of a show interface command. When an interface is
administratively shut it will then show as
Interfaces that are currently up or trunking do not need to be shut down.
Upgrade to SAN-OS Release 3.0(2). Use the interface shutdown
command to shut all the ports operationally down and administratively up
on all the Generation 1 modules before nondisruptively upgrading to
Release 2.0(2b) and then upgrade to 1.3(4a).
FCIP connection flapping during the upgrade process resulting in fabric segmentation or merge.
ISL flap results in fabric segmentation or merge because of hardware issues or a software bug.
ISL port becomes part of PCP results in fabric segmentation or merge because of a port flap.
Complete Step 1 for all switches before moving to Step 2.
Cisco MDS 9000 Family Release Notes for Cisco MDS SAN-OS Release 3.3(3)
"Upgrading Your Version of Cisco Fabric Manager" section on page
Upgrading Your Cisco MDS SAN-OS Software Image
Link failure or
, or
status in the
Error Disabled
Administratively down
.
10.
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