Cisco Cisco MDS 9000 SAN-OS Software Release 1.0

This sections lists limitations or restrictions associated with this release. 

Starting with Cisco MDS SAN-OS Release 3.0(1), the SSM front panel ports can no longer be 
configured in auto mode. Because auto mode is the default for releases prior to Release 3.0(1), you 
should modify the configuration of the ports before upgrading the SAN-OS software image to NX-OS 
Release 4.2(1a) to avoid any traffic disruption. 

For information on how to reconfigure the SSM ports, refer to the “Reconfiguring SSM Ports Before 
Upgrading to NX-OS Release 4.2(1a)” section of the 

Before upgrading your SSI image, refer to the

 and to Table 11 in the 

. Use Table 11 to determine your nondisruptive upgrade path to Cisco MDS NX-OS 

Release 4.2(1a).

This section lists the open and resolved caveats for this release. Use 

 to determine the status of a 

particular caveat. In the table, “O” indicates an open caveat and “R” indicates a resolved caveat. 

CSCsz19597

Symptom: iSAPI unquiesce calls are not protected by a lock in the data path processor code in the 
MSM-18/4. Under a rare race condition, a list might become corrupted, which will cause the data 
path processor to fail. As a consequence, the module will reload. 

Workaround: This issue is resolved.

CSCta39343

R

R