Cisco 9134 - MDS Multilayer Fabric Switch Troubleshooting Manual page 84

SSM Overview
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 3-1
.
Table 3-1
Module
SSM
1. Requires EPLD version 2.1(2) (see
When you upgrade, or downgrade, the SSI boot image on an SSM, you might disrupt traffic through the
module.
Table 3-2
Cisco MDS SAN-OS Release
2.0(2b) through 2.1(1a)
2.1(2) and later
1. Requires EPLD version 2.1(2). See
As shown in
boot image. If you configure Layer 3 Intelligent Storage Services on your SSM, we recommend that you
shut down these services before upgrading the SSI boot image. You can use dual fabric configuration to
minimize the impact of shutting down Layer 3 services.
Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
3-2
lists the features supported for the SSM
Cisco MDS SAN-OS Feature Support for the SSM.
Cisco MDS SAN-OS Release
2.0(1b)
None
2.1(2).
Table 3-2 describes how updating the SSI boot image affects SSM traffic.
SSI Boot Image Updating Affects on SSM Traffic
Table 3-2, Layer 3 Intelligent Storage Services traffic is disrupted when you update the SSI
2.0(2b), 2.0(3), 2.0(4),
and 2.0(4a)
Fibre Channel
switching
Intelligent Storage
Services
VSFN
"Installing EPLD Images on Modules" section on page
Traffic Type
All
Layer 2 Fibre Channel switching
only
Both Layer 2 Fibre Channel
switching and Layer 3 Intelligent
Storage Services (such as
FCWA, NASB, SANTap, and
ISAPI virtualization)
Layer 3 Intelligent Storage
Services (such as FCWA, NASB,
SANTap, ISAPI virtualization)
only
"Installing EPLD Images on Modules" section on page
Chapter 3 Managing Storage Services Modules
2.1(1a) 2.1(2) and later
Fibre Channel Fibre Channel
switching switching
Intelligent Storage Intelligent Storage
Services Services
VSFN Nondisruptive
upgrade for Fibre
Channel switching
traffic
3-9) and SSI boot image version
Disrupts Traffic?
Yes
1
No
Yes
Yes
3-9.
1
OL-9285-05