Isl Disconnect Causes Nos Error With The Openvms Operating Systems; Disconnecting The Null Modem Cable - HP StorageWorks 2/140 - Director Switch Release Note

Known Issues
HSG80 Transparent Mode Not Recommended with Controller
in SCSI-3 Mode with HP-UX Operating Systems
Due to an issue with non-existent duplicate LUNs being displayed with the HP-UX
operating systems, the HSG80 controller is restricted to SCSI-2 mode of operation
when set to Transparent failover mode.
SCSI-3 mode of operation in Multibus failover mode is fully supported with the use of
Secure Path software, Version 3.0.
Workaround
None.
ISL Disconnect Causes NOS Error with the OpenVMS
Operating Systems
When an ISL connection is physically removed between directors or switches, the
Fibre Channel Adapter model FCA2354 transmits a Not Operational Sequence (NOS)
error. This is observed as an entry in the HAFM server Link incident log for the port in
which the FCA2354 is attached. The director's Hardware View also displays a yellow
triangle icon over the port that detected this incident. The fabric operation or data
movement is not disrupted by these incidents, which can be cleared using the
following procedure.
Workaround
Use these steps to clear the incident alerts.
1. At the HAFM Hardware View, click the port module to open the Port Card
View.
2. Right click on the port with the yellow triangle icon, and choose Clear Link
Incident Alert(s).

Disconnecting the Null Modem Cable

Always log out and disconnect the Null Modem cable from the serial maintenance
port when not in use or when the switch is reset.
8 director release notes