Table Of Contents
Cisco MDS 9000 Family Release Notes
for Cisco MDS SAN-OS Release 1.1(2)
CCO Date: July 30, 2003
Text Part Number: OL-4376-03 A0
This document describes the caveats and limitations for switches in the Cisco MDS 9000 Family. Use this document in conjunction with documents listed in the "Related Documentation" section.
Note Release notes are sometimes updated with new information on restrictions and caveats. Refer to the following website for the most recent version of the Cisco MDS 9000 Family Release Notes: http://www.cisco.com/en/US/products/hw/ps4159/ps4358/prod_release_notes_list.html
Table 1 shows the on-line change history for this document.
Table 1 On-Line History Change
Revision Date Description
Added DDTS CSCei25319
This document includes the following section:
The Cisco MDS 9000 Family of multilayer directors and fabric switches offer intelligent fabric-switching services that realize maximum performance while ensuring high reliability levels. They combine robust and flexible hardware architecture with multiple layers of network and storage management intelligence. This powerful combination enables highly available, scalable storage networks that provide advanced security and unified management features.
The Cisco MDS 9000 Family provides intelligent networking features such as multiprotocol and multitransport integration, virtual SANs (VSANs), advanced security, sophisticated debug analysis tools, and unified SAN management.
This section describes the system requirements for Cisco MDS SAN-OS Release 1.1(2) and includes the following topics:
Table 2 Cisco MDS 9000 Family Supported Hardware Modules and Minimum Software Requirements
Component Part Number Description Applicable Products
MDS 9500 Series supervisor/fabric-I, enterprise software
MDS 9500 Series only
MDS 9216 enterprise software
MDS 9216 only
MDS 9509 director, base configuration (9-slot modular chassis includes 7 slots for switching modules and 2 slots for supervisor modules—SFPs sold separately)
MDS 9509 only
MDS 9506 director (6-slot modular chassis includes 4 slots for switching modules and 2 slots for supervisor modules—SFPs sold separately.
MDS 9506 only
MDS 9216 16-port semi-modular fabric switch (includes sixteen 1 / 2-Gbps Fibre Channel ports, power supply, and expansion slot—SFPs sold separately)
MDS 9216 only
MDS 9500 supervisor/fabric-I, module
MDS 9500 Series only
MDS 9000 16-port 2/1-Gbps Fibre Channel module (SFPs sold separately)
MDS 9500 Series and 9216
MDS 9000 32-port 2/1-Gbps Fibre Channel module (SFPs sold separately)
An eight-port (8) Gigabit Ethernet IP storage services module.
LC-type fiber-optic SFP1
2/1-Gbps Fibre Channel — short wave SFP
MDS 9000 Family
2/1-Gbps Fibre Channel — long wave SFP
1-Gbps Ethernet and 2/1-Gbps Fibre Channel—short wave SFP
1-Gbps Ethernet and 2/1-Gbps Fibre Channel — long wave SFP
Gigabit Ethernet and 2/1-Gbps Fibre Channel SFP LC interface xxxx nm, where xxxx = 1470, 1490, 1510, 1530, 1550, 1570, 1590, or 1610 nm
MDS 9500 Series and 9216
Add/drop multiplexer for four CWDM wavelengths
Add/drop multiplexer for eight CWDM wavelengths
Two slot chassis for CWDM add/drop multiplexer(s)
845W3 AC power supply for MDS 9216
MDS 9216 only
2500W AC power supply
MDS 9509 only
2500W DC power supply
4000W AC power supply for US (cable attached)
4000W AC power supply international (cable attached)
1900W AC power supply for MDS 9506
MDS 9506 only
1900W DC power supply for MDS 9506
MDS 9500 supervisor CompactFlash disk, 512MB
MDS 9500 Series only
Port analyzer adapter
A standalone Fibre Channel-to-Ethernet adapter that allows for simple, transparent analysis of Fibre Channel traffic in a switched fabric.
MDS 9000 Family
1 SFP = small form factor pluggable
2 CWDM = coarse wave division multiplexing
3 W = Watt
Determining the Software Version
Note We strongly recommend that you use the latest available software release for all Cisco MDS 9000 Family products.
To determine the version of the Cisco SAN-OS software currently running on a Cisco MDS 9000 Family switch, log in to the switch and enter the show version EXEC command.
This Cisco MDS SAN-OS Release 1.1(2) software is packaged in feature sets (also called software images) depending on the platform. The Cisco MDS SAN-OS software feature sets available for the Cisco MDS 9000 Family include Ethernet, Fibre Channel (1 Gbps and 2 Gbps), SNMP, and IP packets.
Image Upgrade Matrix
Table 3 lists the image upgrade (and downgrade) options for Cisco MDS SAN-OS Release 1.1(2).
New Features in Release 1.1(2)
SAN-OS Release 1.1(2) is a maintenance release for switches in the Cisco MDS 9000 Family. See the "Caveats" section for details on closed and outstanding caveats and limitations.
Note The Release Notes are specific to this maintenance release. For the rest of the 1.1(2) documentation, refer to the Release 1.1(1a) document set (see the "Related Documentation" section).
Configuring Performance Buffers
Regardless of the configured Rx BB_credit value, you can manually configure the performance buffer value for specific applications (for example, forwarding frames over FCIP interfaces).
For each physical Fibre Channel interface in any switch in the Cisco MDS 9000 Family, you can specify the amount of performance buffers allocated in addition to the configured receive BB_credit value.
Refer to Cisco MDS 9000 Family Configuration Guide, Release 1.2(1a) for details on this feature.
The show tech support Command
The show tech-support command is useful when collecting a large amount of information about your switch for troubleshooting purposes. The output of this command can be provided to technical support representatives when reporting a problem.
The show tech-support command displays the output of several show commands at once. The output from this command will vary depending on your configuration. Use the show tech-support command in EXEC mode to display general information about the switch when reporting a problem.
You can choose to have detailed information for each command or even specify the output for a particular interface, module or VSAN. Each command output is separated by line and the command precedes the output.
This command was available in Release 1.1(1a) and modified in Release 1.1(2).
Limitations and Restrictions
The following limitations and restrictions apply to all switches in the Cisco MDS 9000 Family:
Downgrading from a Higher Release
When downgrading any switch in the Cisco MDS 9000 Family, avoid using the reload command:
Tip Use the install all command to gracefully reload the switch and handle configuration conversions.
For example, to revert to Release 1.0(4) or 1.0(3a) from Release 1.x, follow these steps:
Step 1 Save the configuration using the copy running-config startup-config command to save the new configuration into nonvolatile storage.
Step 2 Issue the install all command to reload the switch.
Refer to the Cisco MDS 9000 Family Configuration Guide for further information.
Restoring the Configured Redundancy Mode
Tip If you have configured the combined mode as the redundancy mode for power supplies on a Cisco MDS 9509 switch, exert care when using the sequence of the write erase and reload commands before rolling back to a saved configuration.
As a result of issuing the write erase command and the reload command, you restore the switch settings to its factory defaults. This sequence also restores the redundancy mode setting for the power supplies back to the redundant mode (default).
Depending on the types of power supplies, the input voltage, and the number of modules (line cards) in the chassis, the redundancy mode may prevent the line cards from being powered on after a system reboot.
If you use this sequence, the commands that apply to the powered down line cards will not be enforced on the switch (and will not be part of its running configuration).
When using the sequence of the write erase and reload commands before rolling back to a saved configuration, follow these steps:
Step 1 Manually change the redundant mode configuration to combined mode, if originally configured as such.
Step 2 Wait until all modules are back online—the module status displays ok in response to the show module command.
Step 3 Rollback to the saved configuration using the copy command.
Compatible iSCSI Drivers
Each iSCSI host that requires access to storage via the IPS module needs to have a compatible iSCSI driver installed.
The CCO website at http://www.cisco.com/public/sw-center/sw-stornet.shtml provides a list of compatible drivers.
Caveats Resolved in Release 1.1(2)
The following caveats were resolved in Release 1.1(2):
This section lists the caveats and corrected caveats for this release. Use Table 4 to determine the status of a particular caveat. In the table, "R" indicates a resolved caveat, and "O" indicates an open caveat.
Symptom: A Cisco MDS 9500 director, with 16-port modules currently running version 1.1(2), 1.1(3), or 1.2(1A), that was non-disruptively upgraded from version 1.0(x), 1.1(1), or 1.1(1A) and then encountered a link reinitialization on one of the 16 ports can cause the system to get into an unpredictable state and may require a switch reset to recover.
Please use the following URL for further information: http://www.cisco.com/pcgi-bin/bugtool/onebug.pl?bugid=CSCeb83751
Symptom: Displaying the name server database for a range of VSANs only works if the name server contains entries for all the VSANs in the range.
Please use the following URL for further information: http://www.cisco.com/pcgi-bin/bugtool/onebug.pl?bugid=CSCeb24370
Symptom: After issuing the fcdomain manager restart disruptive command, an IBM tape 3590 port on the switch displays a not connected status.
Please use the following URL for further information: http://www.cisco.com/pcgi-bin/bugtool/onebug.pl?bugid=CSCeb18262
Symptom: When a private loop device connects to a TL port that is in the up state, fabric devices that are in the same VSAN and zone as the newly inserted loop devices receive multiple proxies for each loop device instead of just one.
Please use the following URL for further information: http://www.cisco.com/pcgi-bin/bugtool/onebug.pl?bugid=CSCeb50783
Symptom: When you delete roles, they reappear after the switch is rebooted.
Please use the following URL for further information: http://www.cisco.com/pcgi-bin/bugtool/onebug.pl?bugid=CSCeb26940
Symptom: Removing and inserting a standby supervisor causes it to fail the boot procedure (at the boot loader prompt). No alert or notification is generated.
Please use the following URL for further information: http://www.cisco.com/pcgi-bin/bugtool/onebug.pl?bugid=CSCeb25354
Symptom: During switch bootup, occasionally some modules may fail to come online. The following messages are reported:
–XBAR-2-MOD_CONNECTION_FAILURE: Xbar connection with module x failed
–XBAR-1-XBAR_ASIC_FATAL_ERROR: Encountered Fatal ASIC Error for module x device 12 error 0xc02message
Please use the following URL for further information: http://www.cisco.com/pcgi-bin/bugtool/onebug.pl?bugid=CSCeb42054
Symptom: Issuing a show switchover impact command while any module is booting up can cause the switch to failover to the standby supervisor.
Please use the following URL for further information: http://www.cisco.com/pcgi-bin/bugtool/onebug.pl?bugid=CSCeb10177
Symptom: The following IPS module port configurations are not allowed:
–If a member port has subinterfaces, then the member port cannot be added to any PortChannel.
–If a member port is part of a PortChannel, then you cannot create subinterfaces in this member port.
–If a Gigabit Ethernet port is part of a PortChannel, then you cannot create a different PortChannel on its adjacent port.
Please use the following URL for further information: http://www.cisco.com/pcgi-bin/bugtool/onebug.pl?bugid=CSCeb17094
Symptom: When fabrics are merged by bringing up an inter-switch link, the active Zone Set name in every switch is different based on the local switch configuration.
Please use the following URL for further information: http://www.cisco.com/pcgi-bin/bugtool/onebug.pl?bugid=CSCeb17094
Symptom: The show fcs database command returns entries with 0.0.0.0 as the IP address.
Please use the following URL for further information: http://www.cisco.com/pcgi-bin/bugtool/onebug.pl?bugid=CSCeb26498
Symptom: When a link is brought up, the following error message is generated:Error in processing LSA packet on intf fc_/_ VSAN _, Error = Illegal state.
Please use the following URL for further information: http://www.cisco.com/pcgi-bin/bugtool/onebug.pl?bugid=CSCeb36758
Symptom: When a power supply that is turned off while a switch is running, the Device Manager does not display the power supply.
Please use the following URL for further information: http://www.cisco.com/pcgi-bin/bugtool/onebug.pl?bugid=CSCeb29307
Symptom: A SNMP trunk VSAN trap is not generated for each VSAN of a trunking PortChannel, when a member port goes down. Also when a trunk member port comes up, the SNMP VSAN traps are generated for each VSAN, but they have incorrect trunk operational port status.
Please use the following URL for further information: http://www.cisco.com/pcgi-bin/bugtool/onebug.pl?bugid=CSCeb28919
Symptom: When a power supply that is turned on or off, the corresponding SNMP trap displays an incorrect AdminStatus.
Please use the following URL for further information: http://www.cisco.com/pcgi-bin/bugtool/onebug.pl?bugid=CSCeb28812
Symptom: Issuing a show hardware command displays the same serial number for both active and standby supervisors.
Please use the following URL for further information: http://www.cisco.com/pcgi-bin/bugtool/onebug.pl?bugid=CSCeb45606
Symptom: If automatic image synchronization is enabled, and the standby supervisor module is synchronizing the image from the active supervisor, the switch will not stop you from issuing the reload command on the active or standby supervisor modules. This may result in a failure to synchronize the images.
Workaround: Be sure to allow sufficient time for the images to be synchronized before reloading a supervisor module. Use the show system status redundancy CLI command to check the standby supervisor status.
Symptom: When you issue the copy startup-config running-config command on a switch which is already up and running, the trunking ports may flap, due to reapplication of allowed VSANs for trunking ports in the startup configuration.
Workaround: Ensure that the startup configuration does not contain any allowed VSAN configuration for trunking ports (trunking ports default to the allowed VSAN configuration).
Symptom: If a copy running-config startup-config command is issued when a switching module is temporarily down, the configuration for that module will be deleted from the system. This primarily occurs at boot time before all the modules are online.
Workaround: First issue the show module command to ensure that all modules are online before issuing a copy running-config startup-config command.
Symptom: Avoid using the same TCP port number for iSCSI and FCIP protocols on an IP Storage Services module (IPS module) port.
Sympton: An error message in the log file occurs because the platform manager component passes the wrong parameter while responding to a SNMP query. In some cases, this results in the query not being responded to.
Workaround: Perform a refresh on Device Manager to clear the problem.
Symptom: Importing the ASCII configuration multiple times in the same switch can cause the FCIP interface to go into error disabled state.
Symptom: When the Fabric Manager or Device Manager communicates with the Cisco MDS switch through Virtual Private Network (VPN) or any Network Address Translation (NAT) scheme, a generic error message occurs while adding duplicate zone members from a VPN connection.
Workaround: None. If an error occurs while running through VPN/NAT, all errors will show up as generic errors without a detailed message describing the error.
Symptom: The Fabric Manager or Device Manager reports an error for all operations if the switch is multihomed (both IPFC-based in-band management and the out-of-band management interface are up) and the Fabric or Device Manager was started using the IPFC address. Typically, you will see a notInTime window error in the Device Manager and all SNMP set operations fail.
Workaround: If the switch is multihomed, then start the Fabric or Device Manager on the switch using the out-of-band management interface IP address.
Symptom: For iSCSI configurations, both no pwwn hh:hh:hh:hh:hh:hh:hh:hh and no pwwn auto number delete all the pWWNs for a given target.
Symptom: If you change the iSCSI switchport identification from name to IP address, the TCP sessions are not terminated.
Symptom: The Fabric Manager and Device Manager do not support iSCSI TCP parameter configuration and display.
Symptom: When you delete a pWWN for an auto-created iSCSI initiator using the Device Manager, (removed from snmp fcAddress table), it still shows up in the CLI (the initiator is still auto-created).
Symptom: The counter values freeze if the Device Manager port monitor window has been up and running for a long time (overnight or a few days).
Workaround: Close the frozen Device Manager window and re-open Device Manager.
Symptom: The Device Manager shows a port in the down state (red square) when the operational status of the port is up. This rare occurrence is due to the failure cause of the port not being empty (for example, the failure case reflects the initializing state).
Symptom: When a switch is upgraded while the Device Manager for that switch is open, a Java error of class cast exception occurs. When this error occurs, some Device Manager menu items are unusable while other menu items remain in this error state.
Workaround: Close the Device Manager and reopen it.
Symptom: After plugging and unplugging a Gigabit Ethernet cable multiple times the PortChannel gets isolated and issues a remote domain manager not responding error.
Symptom: Sometimes, the zone merge import command results in isolation.
Workaround: Reissue the command to resolve the isolation problem.
Symptom: The following error message is issued when you try configuring switch drop latency:changing this parameter is not allowed could not update the value
Workaround: None. Switch drop latency is not configurable in this release of the software.
Symptom: SNMP timeouts occur, or you have difficulty logging into a switch. This can happen if there are two NICs in the same host, and the Java environment attempts to access a switch through the incorrect NIC.
Workaround: Open the Windows shortcuts to Fabric Manager and Device Manager. Add the following parameter to the shortcut, after java.exe":
-Dmds.nmsAddress=nic IP address to use
Below is an example of what the full line might look like for Fabric Manager:
"C:\Program Files\Java\j2re1.4.1\bin\javaw.exe" -Dmds.nmsAddress=192.168.0.1 -Dsun.java2d.ddoffscreen=false -cp bitmaps.jar;sm.jar;dm.jar;dmdb.jar;dmhelp.jar; esper.jar;layout.jar;jchart.jar;jh.jar;jnm.jar;sanmgr-topo.jar;snmp.jar;agent.jar -Xms6m com.andiamo.sm.SM
Symptom:The Telnet server may not be disabled even if you disable it through setup. A telnet session will still work in the switch.
Workaround: Issue the no telnet server enable command in configuration mode to disable telnet after you login to the switch.
Regulatory Compliance and Safety Information for the Cisco MDS 9000 Family
Cisco MDS 9100 Series Quick Start Guide
Cisco MDS 9500 Series and Cisco MDS 9216 Quick Start Guide
Cisco MDS 9100 Series Hardware Installation Guide
Cisco MDS 9216 Switch Hardware Installation Guide
Cisco MDS 9500 Series Hardware Installation Guide
Cisco MDS 9000 Family Command Reference
Cisco MDS 9000 Family Configuration Guide
Cisco MDS 9000 Family Fabric Manager User Guide
Cisco MDS 9000 Family Troubleshooting Guide
Cisco MDS 9000 Family System Messages Guide
Cisco MDS 9000 Family MIB Reference Guide
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