Table Of Contents
Cisco MDS 9000 Family Release Notes
for Cisco MDS SAN-OS Release 2.0(1b)Determining the Software Version
New Features in Cisco MDS SAN-OS Release 2.0(1b)
Cisco MDS 9216i Multiprotocol Fabric Switch
Cisco MDS 9216A Multilayer Fabric Switch
14/2-Port Multiprotocol Services Module
Storing the Last Core to Flash
The snmp-server enable traps Command
Upgrading to Cisco MDS SAN-OS Release 2.0(1b) from Release 1.3(4a)
Port Mode for IBM FAStT 500 Storage System
Fabric Manager/Device Manager Support on Windows2003
Cisco Product Security Overview
Reporting Security Problems in Cisco Products
Obtaining Technical Assistance
Cisco Technical Support Website
Definitions of Service Request Severity
Obtaining Additional Publications and Information
Cisco MDS 9000 Family Release Notes
for Cisco MDS SAN-OS Release 2.0(1b)
Release Date: October 22, 2004
Text Part Number: OL-6249-01 Rev. F1
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
Releases 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 Note: 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
A0
10/22/2004
Release notes created
B0
11/05/2004
Table 2 caption revised
Table 3 correctly referenced in the Caveats sectionC0
11/09/2004
Added SSE license information
D0
11/17/2004
Added DDTS CSCeg23889, image upgrade references, and FC ID information
E0
11/30/2004
Added Fabric Manager/Device Manager Support on Windows2003 information
F0
12/15/2004
Added DDTS CSCeg53094
G0
12/22/2004
Added DDTS CSCeg59198, CSCeg61535, and CSCeg58996
H0
01/14/2005
Added DDTS CSCef74578, CSCef82882, CSCef94903, CSCeg05450, CSCeg09210, CSCeg37598, CSCeg44018, CSCeg46989, CSCeg56197.
I0
02/17/2005
Added DDTS CSCef83504
J0
02/28/2005
Added DDTS CSCeg85146 and CSCin81851
K0
03/15/2005
Added DDTS CSCeh21199, CSCef56229
L0
03/24/2005
Added DDTS CSCed20053, CSCef65409, CSCef70000, CSCeg13762, CSCeg17593, CSCeg18886, CSCeg20292, CSCeg30690, CSCeg33732CSCin81760.
Changed severity of DDTS CSCeg44018.
M0
04/12/2005
Added DDTS CSCeg07325, CSCeh44216, CSCeh49026, CSCeh51924
N0
04/13/2005
Added DDTS CSCeg81089
O0
5/3/2005
Added DDTS CSCeh65824
P0
5/19/2005
Removed DDTS CSCeh44216
Q0
5/24/2005
Added DDTS CSCeg66225 and CSCeh42252
R0
5/31/2005
Added DDTS CSCeh96928
S0
06/01/2005
Added DDTS CSCeg24199
T0
06/23/2005
Added DDTS CSCei25319
U0
07/29/2005
Added DDTS CSCed57251, CSCeh61610, CSCeh64080, CSCec31365, CSCeg20932, CSCeg53114, CSCeg66225, CSCeh19639, CSCeh52280, CSCeh56143, CSCeh82490, CSCeh83514, and CSCeh87985
V0
08/05/2005
Added DDTS CSCeh41099
W0
08/22/2005
Removed DDTS CSCeh61610
X0
08/23/2005
Added DDTS CSCeh61610
Y0
10/14/2005
Modified DDTS CSCeg07325
Z0
12/07/2005
Added DDTS CSCsc31424
A1
12/30/2005
Added DDTS CSCei91968
B1
05/02/2006
Added DDTS CSCeg33121, CSCei67982, CSCei91676, and CSCsc33788
C1
06/06/2006
Removed DDTS CSCed16845
D1
9/05/2006
Added DDTS CSCsd78967
E1
9/13/2006
Added DDTS CSCsf21970
F1
02/23/2007
Added DDTS CSCsg03171 and CSCsh27840.
Contents
This document includes the following sections:
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Introduction
The Cisco MDS 9000 Family of multilayer directors and fabric switches offers intelligent fabric-switching services that realize maximum performance while ensuring high reliability levels. These switches 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.
System Requirements
This section describes the system requirements for Cisco MDS SAN-OS Release 2.0(1b) and includes the following topics:
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Components Supported
Table 2 lists the software and hardware components supported by the Cisco MDS 9000 Family.
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Table 2 Cisco MDS 9000 Family Supported Software and Hardware Components
Software
M95S1K9-2.0.1
MDS 9500 Supervisor/Fabric-I, SAN-OS software.
MDS 9500 Series only
M92S1K9-2.0.1
MDS 9216 Supervisor/Fabric-I, SAN-OS software.
MDS 9200 Series only
M91S1K9-2.0.1
MDS 9100 Supervisor/Fabric-I, SAN-OS software.
MDS 9100 Series only
License
M9500SSE1K9
Storage services enabler package
MDS 9500 series with ASM
M9500SSE1K9
Storage services enabler package
MDS 9200 series with ASM
Chassis
DS-C9509
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
DS-C9506
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
DS-C9216-K9
MDS 9216 16-port semi-modular fabric switch (includes 16 1-Gbps/2-Gbps Fibre Channel ports, power supply, and expansion slot—SFPs sold separately).
MDS 9216 only
DS-C9216A-K9
MDS 9216A 16-port semi-modular fabric switch (includes 16 1-Gbps/2-Gbps Fibre Channel ports, power supply, and expansion slot—SFPs sold separately).
MDS 9216A only
DS-C9216i-K9
MDS 9216i 16-port semi-modular fabric switch (includes 14 1-Gbps/2-Gbps Fibre Channel ports, 2 Gigabit Ethernet ports, power supply, and expansion slot—SFPs sold separately.
MDS 9216i only
DS-C9120-K9
MDS 9120 fixed configuration, non-modular, fabric switch (includes 4 full rate ports and 16 host-optimized ports).
MDS 9120 only
DS-C9140-K9
MDS 9140 fixed configuration (non-modular) fabric switch (includes 8 full rate ports and 32 host-optimized ports).
MDS 9140 only
Supervisor modules
DS-X9530-SF1-K9
MDS 9500 Supervisor/Fabric-I, module.
MDS 9500 Series only
Switching modules
DS-X9016
MDS 9000 16-port 2-Gbps/1-Gbps Fibre Channel module (SFPs sold separately).
MDS 9500 Series and 9200 Series
DS-X9032
MDS 9000 32-port 2-Gbps/1-Gbps Fibre Channel module (SFPs sold separately).
Services modules
DS-X9308-SMIP
8-port Gigabit Ethernet IP Storage Services module.
DS-X9304-SMIP
4-port Gigabit Ethernet IP Storage Services module.
DS-X9032-SMV
32-port Fibre Channel Advanced Services Module (ASM).
DS-X9560-SMC
Caching Services Module (CSM).
DS-X9302-14K9
14-port Fibre Channel/2-port Gigabit Ethernet Multiprotocol Services (MPS-14/2) module.
LC-type fiber-optic SFP1
DS-SFP-FC-2G-SW
2-Gbps/1-Gbps Fibre Channel — short wave SFP.
MDS 9000 Family
DS-SFP-FC-2G-LW
2-Gbps/1-Gbps Fibre Channel — long wave SFP.
DS-SFP-FCGE-SW
1-Gbps Ethernet and 2-Gbps/1-Gbps Fibre Channel—short wave SFP.
DS-SFP-FCGE-LW
1-Gbps Ethernet and 2-Gbps/1-Gbps Fibre Channel — long wave SFP.
CWDM2
CWDM-SFP-xxxx-2G
Gigabit Ethernet and 2-Gbps/1-Gbps Fibre Channel SFP LC interface xxxx nm, where xxxx = 1470, 1490, 1510, 1530, 1550, 1570, 1590, or 1610 nm.
MDS 9000 Family
CWDM-MUX-4
Add/drop multiplexer for four CWDM wavelengths.
CWDM-MUX-8
Add/drop multiplexer for eight CWDM wavelengths.
CWDM-CHASSIS-2
Two slot chassis for CWDM add/drop multiplexer(s).
Power supplies
DS-CAC-300W
300-W3 AC power supply.
MDS 9100 Series only
DS-CAC-845W
845-W AC power supply.
MDS 9200 Series only
DS-CAC-2500W
2500-W AC power supply.
MDS 9509 only
DS-CDC-2500W
2500-W DC power supply.
DS-CAC-4000W-US
4000-W AC power supply for US (cable attached).
DS-CAC-4000W-INT
4000-W AC power supply international (cable attached).
DS-CAC-1900W
1900-W AC power supply.
MDS 9506 only
DS-CDC-1900W
1900-W DC power supply.
CompactFlash
MEM-MDS-FLD512M
MDS 9500 supervisor CompactFlash disk, 512MB.
MDS 9500 Series only
Port analyzer adapter
DS-PAA-2
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 wavelength division multiplexing
3 W = Watt
Determining the Software Version
Note
To determine the version of the Cisco MDS SAN-OS software currently running on a Cisco MDS 9000 Family switch using the CLI, log into the switch and enter the show version EXEC command.
To determine the version of the Cisco MDS SAN-OS software currently running on a Cisco MDS 9000 Family switch using the Fabric Manager, view the Switches tab in the information pane, locate the switch, using the IP address, logical name, or WWN, and check its version in the Release column.
Image Upgrade
The Cisco MDS SAN-OS software is designed for mission-critical high availability environments. To realize the benefits of nondisruptive upgrades on the Cisco MDS 9500 Directors, we highly recommend that you install dual supervisor modules.
You can nondisruptively upgrade to Cisco MDS SAN-OS Release 2.0(1b) from any SAN-OS software release beginning with Release 1.3(x). If you are running an older version of SAN-OS, upgrade to Release 1.3(x) and then Release 2.0(1b).
When downgrading from Cisco MDS SAN-OS Release 2.0(1b) to release 1.3(x), you might need to disable new features in release 2.0(1b) for a nondisruptive downgrade. Issuing the install all command from the CLI, or using Fabric Manager to perform the downgrade, enables the compatibility check which will indicate that the downgrade will be disruptive and the reason will be "current running-config is not supported by new image".
Compatibility check is done:Module bootable Impact Install-type Reason------ -------- -------------- ------------ ------2 yes disruptive reset Current running-config is not supported by new image3 yes disruptive reset Current running-config is not supported by new image5 yes disruptive reset Current running-config is not supported by new image6 yes disruptive reset Current running-config is not supported by new imageAt a minimum, you need to disable the default device alias distribution feature using the no device-alias distribute command in global configuration mode. The show incompatibility system bootflash:1.3(x)_filename command determines which additional features need to be disabled.
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New Features in Cisco MDS SAN-OS Release 2.0(1b)
Cisco MDS SAN-OS Release 2.0(1b) is a major release for switches in the Cisco MDS 9000 Family. See the "Caveats" section for details on closed and outstanding caveats and limitations.
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The following new features are introduced in Release 2.0(1b):
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Cisco MDS 9216i Multiprotocol Fabric Switch
Cisco MDS 9216i multiprotocol fabric switches contain one fixed integrated supervisor module with 14 Fibre Channel ports, 2 IP ports that can support FCIP and iSCSI protocols simultaneously, and an expansion slot that can support up to 32 additional ports (for a total of 48 ports).
The Cisco MDS 9216i switch shares a consistent software architecture with the Cisco MDS 9500 Series in a semi-modular chassis and consists of the following major hardware components:
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Refer to the Cisco MDS 9200 Series Hardware Installation Guide.
Cisco MDS 9216A Multilayer Fabric Switch
Cisco MDS 9216A multilayer fabric switches contain one fixed integrated supervisor module with 16 Fibre Channel ports and an expansion slot that can support up to 32 additional ports (for a total of 48 ports).
The Cisco MDS 9216 Switch and the Cisco MDS 9216A Switch share a consistent software architecture with the Cisco MDS 9500 Series in a semi-modular chassis and consists of the following major hardware components:
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Refer to the Cisco MDS 9200 Series Hardware Installation Guide.
14/2-Port Multiprotocol Services Module
The 14/2-port Multiprotocol Services (MPS-14/2) module allows you to use FCIP and iSCSI features. It integrates seamlessly into the Cisco MDS 9000 Family, and supports the full range of features available on other switching modules, including VSANs, security, and traffic management. The MPS-14/2 module has 14 Fibre Channel ports and two Gigabit Ethernet ports.
Refer to the Cisco MDS 9200 Series Hardware Installation Guide or the Cisco MDS 9500 Series Hardware Installation Guide.
Graceful Shutdown
As of Release 2.0(1b), the Cisco MDS SAN-OS software implicitly performs a graceful shutdown in response to either of the following actions:
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A graceful shutdown ensures that no frames are lost when the interface is shutting down. When a shutdown is triggered either by you or the Cisco MDS SAN-OS software, the switches connected to the shutdown link coordinate with each other to ensure that all frames in the ports are safely sent through the link before shutting down. This enhancement reduces the chance of frame loss.
Refer to the Cisco MDS 9000 Family Configuration Guide.
Cisco Fabric Services
The Cisco MDS SAN-OS software uses the Cisco Fabric Services (CFS) infrastructure to enable efficient database distribution and to foster device flexibility. It simplifies SAN provisioning by automatically distributing configuration information to all switches in a fabric. The following Cisco MDS SAN-OS features use the CFS infrastructure:
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Refer to the Cisco MDS 9000 Family Configuration Guide.
Dynamic VSANs
Port VSAN membership on the switch is assigned on a port-by-port basis. By default each port belongs to the default VSAN.
As of Cisco MDS SAN-OS Release 2.0(1b), you can dynamically assign VSAN membership to ports by assigning VSANs based on the device WWN. This method is referred to as the Dynamic Port VSAN Membership (DPVM) feature. DPVM offers flexibility and eliminates the need to reconfigure the VSAN to maintain fabric topology when a host or storage device connection is moved between two Cisco MDS switches. It retains the configured VSAN regardless of where a device is connected or moved.
Refer to the Cisco MDS 9000 Family Configuration Guide.
Enhanced Zoning
As of Cisco MDS SAN-OS Release 2.0(1b), the zoning feature is enhanced to be compliant with FC-GS-4 and FC-SW-3. Both standards support the basic zoning and the enhanced zoning functionalities.
Refer to the Cisco MDS 9000 Family Configuration Guide.
Zone-Based Traffic Priority
As of Cisco SAN-OS Release 2.0(1b), the zoning feature provides an additional segregation mechanism to prioritize select zones in a fabric and set up access control between devices. Using this feature, you can configure the Quality of Service (QoS) priority as a zone attribute. You can assign the QoS traffic priority attribute to be high, medium, or low. By default, zones with no specified priority are implicitly assigned a low priority. Zone-based QoS can only be implemented in Cisco MDS 9000 Family switches running Cisco MDS SAN-OS Release 2.0(1b) or later.
Refer to the Cisco MDS 9000 Family Configuration Guide.
Device Alias Distribution
As of Cisco SAN-OS Release 2.0(1b), all switches in the Cisco MDS 9000 Family offer a new alias distribution feature called Distributed Device Alias Services (device alias). In Release 1.3 and earlier, aliases were distributed on a per VSAN basis. Using this new, enhanced service, you now have the option to distribute device alias names on a fabric-wide basis.
Refer to the Cisco MDS 9000 Family Configuration Guide.
Switch Security
Management security in any switch in the Cisco MDS 9000 Family provides security to all management access methods including the command-line interface (CLI) or Simple Network Management Protocol (SNMP). CLI security options also apply to the Cisco MDS Fabric Manager and Device Manager.
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Prior to Release 2.0(1b), if a user was previously configured in one database and not the other, the user can continue using that account.
Prior to upgrading to Release 2.0(1b), if the user was present in the SNMP database and the CLI database, then the set of roles assigned to this user in Release 2.0(1b) will include the union of both sets of roles.
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Refer to the Cisco MDS 9000 Family Configuration Guide.
Network Security
The IP Security (IPsec) Protocol is a framework of open standards that provides data confidentiality, data integrity, and data authentication between participating peers. It is developed by the Internet Engineering Task Force (IETF). IPsec provides security services at the IP layer, including protecting one or more data flows between a pair of hosts, between a pair of security gateways, or between a security gateway and a host.
IPsec uses the Internet Key Exchange (IKE) protocol to handle protocol and algorithm negotiation and to generate the encryption and authentication keys to be used by IPsec. While IKE can be used with other protocols, its initial implementation is with the IPsec protocol. IKE provides authentication of the IPsec peers, negotiates IPsec security associations, and establishes IPsec keys.
Refer to the Cisco MDS 9000 Family Configuration Guide.
PortChannel Protocol
The PortChannel Protocol expands the PortChannel functional model in Cisco MDS switches. Each switch uses the information received from the peer ports along with its local configuration and operational values to decide if it should be part of a PortChannel.
The PortChannel feature now includes a new mode (ACTIVE) and a new protocol (autocreation).
Refer to the Cisco MDS 9000 Family Configuration Guide.
ACTIVE Mode
You can configure each PortChannel with a channel group mode parameter to determine the PortChannel protocol behavior for all member ports in this channel group. In the ACTIVE mode, the member ports initiate the PortChannel protocol negotiation with peer port(s) regardless of the channel group mode of the peer port.
The default ON mode is backward compatible with the existing implementation of PortChannels in releases prior to Release 2.0(1b), where the channel group mode is implicitly assumed to be ON. In Cisco MDS SAN-OS Release 1.3 and earlier, the only available PortChannel mode was ON.
Autocreation
As of Cisco SAN-OS Release 2.0(1b), a protocol to exchange PortChannel configurations is available in all Cisco MDS switches. The autocreation mode enables ISLs with compatible parameters to automatically form channel groups without manual intervention.
Port Tracking
The Port Tracking feature is unique to the Cisco MDS 9000 Family of switches. This feature uses information about the operational state of the link to initiate a failure in the link that connects the edge device. This process of converting the indirect failure to a direct failure triggers a faster recovery process. When enabled, the port tracking feature brings down the configured links based on the failed link and forces the traffic to be redirected to another redundant link.
Refer to the Cisco MDS 9000 Family Configuration Guide.
Call Home
As of Cisco SAN-OS Release 2.0(1b), the Call Home feature provides message throttling capabilities, periodic inventory messages, port syslog messages, and RMON alert messages.
Refer to the Cisco MDS 9000 Family Configuration Guide.
SAN Extension Tuner
The SAN extension tuner (SET) feature is unique to the Cisco MDS 9000 Family of switches. This feature helps you optimize FCIP performance by generating SCSI I/O commands and directing such traffic to a specific virtual target. You can specify the size of the test I/O transfers and how many concurrent I/Os to generate while testing. The SET reports the resulting I/Os per second (IOPS) and I/O latency, which helps you determine the number of concurrent I/Os needed to maximize FCIP throughput.
Refer to the Cisco MDS 9000 Family Configuration Guide.
Command Scheduler
The Cisco MDS command scheduler feature helps you schedule configuration and maintenance jobs in any switch in the Cisco MDS 9000 Family. This feature is available in the Cisco SAN-OS Release 2.0(1b) software. You can use this feature to schedule jobs on a one-time basis or periodically.
Refer to the Cisco MDS 9000 Family Configuration Guide.
Initial Setup Changes
The questions in the initial set up routine and the order in which they appear is enhanced to reflect the various changes in the Cisco SAN-OS Release 2.0(1b) software.
Refer to the Cisco MDS 9000 Family Configuration Guide.
Extended BB_Credits
The BB_credits feature allows you to configure up to 255 receive buffers. This number is insufficient for long haul links. To facilitate BB_credits for long haul links, the extended BB_credits flow control mechanism allows you to configure up to 3,500 receive BB_credits on a Fibre Channel port. The extended BB_credit configuration takes precedence over the receive BB_credit and performance buffer configurations.
Refer to the Cisco MDS 9000 Family Configuration Guide.
Link Initialization WWN Usage
Exchange Link Protocol (ELP) and Exchange Fabric Protocol (EFP) use WWNs during link initialization. The usage details differ based on the Cisco SAN-OS software release:
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This link initialization change between Cisco SAN-OS releases is implicit and does not require any configuration.
Refer to the Cisco MDS 9000 Family Configuration Guide.
Multicast Compliance
Prior to Cisco SAN-OS Release 2.0(1b), the principal switch to compute the multicast tree. Now, to interoperate with other vendor switches (following FC-SW3 guidelines), the Cisco SAN-OS software uses the lowest domain switch as the root to compute the multicast tree in interop mode.
Refer to the Cisco MDS 9000 Family Configuration Guide.
FC ID Enhancements
The FC ID feature is enhanced as described in this section.
Refer to the Cisco MDS 9000 Family Configuration Guide.
Persistence by Default
To preserve the FC IDs in your configuration, verify that the persistent Fibre Channel ID (FC ID) feature is enable before rebooting. As of SAN-OS Release 2.0(1b), this feature is enabled by default. In earlier releases, the default is disabled. For more information on persistent FC ID, see the Persistent FC IDs section in the Cisco MDS 9000 Family Configuration Guide.
Allocation for HBAs
To conserve the number of FC IDs used, Cisco MDS 9000 Family switches use a special FC ID allocation scheme.
In Cisco SAN-OS Release 1.3 and earlier, a full area is allocated to host bus adapters (HBAs). This allocation isolates them to an area and they are listed with their pWWN during a fabric login. The allocated FC IDs are cached persistently and are still available in Cisco SAN-OS Release 2.0(1b).
To allow further scalability for switches with numerous ports, the Cisco SAN-OS Release 2.0(1b) software maintains a list of HBAs, identified by their company IDs (also known as Organizational Unit Identifier, or OUI), that use the pWWN during a fabric log in. A full area is allocated to N ports with company IDs that are listed and for the others, a single FC ID is allocated. Irrespective of the kind (whole area or single) of FC ID allocated, the FC ID entries remain persistent.
Changed Term from FCOT to SFP
As of Cisco SAN-OS Release 2.0(1b), the term FCOT (Fibre Channel optical transmitter), is replaced by the term SFP (small form-factor pluggable), in the Cisco SAN-OS software and in the documentation.
Refer to the Cisco MDS 9000 Family Configuration Guide.
IP-ACL Enhancements
In Cisco SAN-OS Release 1.3 and earlier, you could only apply IP-ACLs to VSAN interfaces and the management interface. As of Cisco SAN-OS Release 2.0(1b), you can also apply IP-ACLs to Gigabit Ethernet interfaces (IPS modules) and Ethernet PortChannel interfaces.
If IP-ACLs are already configured in a Gigabit Ethernet interface, you cannot add this interface to a Ethernet PortChannel group.
Do not apply IP-ACLs to only one member of a PortChannel group. Apply IP-ACLs to the entire channel group.
Refer to the Cisco MDS 9000 Family Configuration Guide.
Storing the Last Core to Flash
As of Cisco SAN-OS Release 2.0(1b), the last core dump (service core) is automatically saved to the Flash in the /mnt/pss/ partition before the switchover or reboot occurs. Three minutes after the supervisor module reboots, the saved last core is restored from the Flash partition (/mnt/pss) back to its original RAM location. This restoration is a background process and is not visible to the user.
Refer to the Cisco MDS 9000 Family Configuration Guide.
File System Enhancements
As of Cisco SAN-OS Release 2.0(1b), you can use the Tab key to complete schemes, servers, and file names available in the file system.
Refer to the Cisco MDS 9000 Family Configuration Guide.
RMON Configuration
As of Cisco SAN-OS Release 2.0(1b), you can configure RMON alarms and events by using the CLI.
Refer to the Cisco MDS 9000 Family Configuration Guide.
IP Storage
This section includes the following subsections:
Refer to the Cisco MDS 9000 Family Configuration Guide.
FCIP Tape Acceleration
Tapes are storage devices that store and retrieve user data sequentially. Applications that access tape drives normally have only one SCSI WRITE operation outstanding to it. This single command process limits the benefit of the write acceleration feature when using an FCIP tunnel over a long-distance WAN link. It impacts backup and archive performance because each SCSI WRITE operation does not complete until the host receives a good status response from the tape drive.
The FCIP tape acceleration feature is introduced in Cisco SAN-OS Release 2.0(1b) to improve tape backup and archive operations by allowing faster data streaming from the host to the tape over the WAN link.
FCIP Compression Enhancement
The FCIP compression feature is enhanced to support new compression modes
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These three modes replace the high-throughput and high-comp-ratio modes available in Cisco SAN-OS Release 1.3.
When you upgrade from Cisco SAN-OS Release 1.3, the high-throughput configuration becomes mode 1 and the high-comp-ratio configuration becomes mode 3.
When you downgrade from Cisco SAN-OS Release 2.0(1b) to Cisco SAN-OS Release 1.3 release, all modes (mode 1, mode 2, and mode 3) in Cisco SAN-OS Release 2.0(1b) become high-throughput mode in Cisco SAN-OS Release 1.3.
iSNS Server
The iSNS server allows existing TCP/IP networks to function more effectively as storage area networks by automating the discovery, management, and configuration of iSCSI devices. It also provides device registration, state change notification, and remote domain discovery services.
Mutual CHAP Authentication
The IPS module supports a mechanism for the iSCSI initiator to authenticate the switch using the switch user name and password during the iSCSI CHAP authentication login.
Other IP Storage Changes
The following settings are enhanced in Cisco SAN-OS Release 2.0(1b):
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New CLI Commands
Several new CLI commands support the new features in this software release. Other commands introduced or significantly enhanced in Release 2.0(1b) are addressed in this section.
Refer to the Cisco MDS 9000 Family Configuration Guide and the Cisco MDS 9000 Family Command Reference.
The show inventory Command
To view information on the field replaceable units (FRUs) in the switch, including product IDs, serial numbers, and version IDs, use the show inventory command.
The error-enabled Command
To enable the error-enabled message display, use the aaa authentication login error-enable command.
To disable the error-enabled message display, use the no aaa authentication login error-enable command.
To view the current display status, use the show aaa authentication login error-enable command.
The snmp-server enable traps Command
To enable a specific SNMP trap (for example, fcdomain traps) notification use the snmp-server enable traps fcdomain command.
To disable the specified SNMP trap notification use the no snmp-server enable traps fcdomain command.
The Extended ping Command
The ping command now provides additional options to verify the connectivity of a remote host or server. To specify these additional parameters, type ping at the CLI switch prompt and press Enter.
Deprecated Commands
The following commands are deprecated in Cisco SAN-OS Release 2.0(1b):
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Fabric Manager Enhancements
The Cisco MDS 9000 Family Fabric Manager enhancements are as follows:
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Device Manager Enhancements
The Cisco MDS 9000 Family Device Manager enhancements are as follows:
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Refer to the Cisco MDS 9000 Fabric Manager Guide.
Limitations and Restrictions
The following limitations and restrictions apply to all switches in the Cisco MDS 9000 Family:
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Upgrading to Cisco MDS SAN-OS Release 2.0(1b) from Release 1.3(4a)
This procedure applies to Fabric Manager and Device Manager applications using Cisco MDS SAN-OS Release 1.3(4a) software.
To upgrade a switch from 1.3(4a) to 2.0(1b), use Device Manager to copy the image files to bootflash and then use Fabric Manager to perform the upgrade.
To copy the image files from a server or PC to bootflash, follow these steps:
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Step 7
Step 8
Step 9
Note
[device>:][<partition>:]<file>
where <device> is a value obtained from the Flash device name,
<partition> is obtained from the Flash partition name
and <file> is any character string that does not have embedded colon characters.Step 10
To upgrade using Fabric Manager, use the Software Install Wizard. Software upgrades may be disruptive under the following conditions:
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Note
To use the Software Install Wizard, follow these steps:
Step 1
You see the Software Install Wizard.
Step 2
You must select at least one switch to proceed. When finished, click Next.
Step 3
To use images that are already downloaded (the file is already on the bootflash), check the Skip Image Download check box.
Step 4
Step 5
You must select at least one image for each switch to proceed.
Note
Step 6
If you check version check before the upgrade process is started, a version check is done. This check provides information about the impact of the upgrade for each module on the switch. It also shows any HA-related incompatibilities that might result. You see a final dialog box at this stage, prompting you to confirm that this check should be performed.
Caution
Note
Refer to the Cisco MDS 9000 Fabric Manager Guide.
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