This document describes the features, limitations, and caveats for the Cisco Nexus Virtual Services Appliance management software. Use this document in combination with documents listed in the “Related Documentation” section.
This document includes the following information about the Cisco Nexus Virtual Services Appliance management software.
The Cisco Nexus Virtual Services Appliance is a hardware shell that can host multiple virtual service blades (VSBs), including up to four Cisco Nexus 1000V virtual supervisor modules (VSMs) and a network analysis module (NAM). From a network management perspective, the hosted VSMs appear as a cluster. Each VSM and its associated VEMs make up one virtual switch.
There are two new appliances in the Cisco Nexus Virtual Services Appliance family:
The Cisco Nexus 1110-S appliance
The Cisco Nexus 1110-X appliance
Each of the new appliances is described in the following section.
Cisco Nexus Virtual Services Appliance Features
The Cisco Nexus 1110-S appliance has the following features:
Memory: 32 GB
Hard disk: Two 2-TB SATA drives
Support for up to 6 VSBs
The Cisco Nexus 1110-X appliance has the following features:
Memory: 64 GB
Hard disk: Four 4-TB SATA drives
Support for up to10 VSBs
Complete hardware feature descriptions and specifications are available in the Cisco Nexus Virtual Services Appliance Hardware Installation Guide.
This section describes the following new or changed software features:
Information about these features can be found in the Cisco Nexus Virtual Services Appliance Software Configuration Guide and in the Cisco Nexus Virtual Services Appliance Troubleshooting Guide.
Enhanced Troubleshooting Capabilities
The following troubleshooting capabilities are available:
USB/CD Support for Troubleshooting
In the event of any failure on the Cisco Nexus Virtual Services Appliance or loss in network connectivity, you can access an external USB or CD to copy the logs for troubleshooting. To access an external USB or CD, you must enable the auxiliary feature. By default this feature is disabled.
A shutdown command is available to shut down the Cisco Nexus Virtual Services Appliance. When you execute this command, all the VSBs shut down first and then the Cisco Nexus Virtual Services Appliance shuts down. By default, the command shuts down both the primary and the secondary Cisco Nexus Virtual Services Appliance.
The show virtual-service-blade name name statistics command displays statistics for a specific virtual service blade (VSB) such as CPU utilization, memory, last reboot time, and total number of reboots.
Enhanced Log Collection
The vsa-system get agent logs command allows you to access agent logs, sos report, and other logs in the bootflash:repository.
The debug CD is a separate image for debugging purposes. It allows you to boot directly into the host operating system.
SNMP for PID
Each hardware PID is supported by its unique sysObjectId SNMP MIB. The following hardware PIDs exist: N1K-C1010, N1K-C1010-X, N1K-1110-S, and N1K-1110-X.
The Cisco Nexus Virtual Services Appliance management software controls the virtual services and blades running on the Cisco Nexus Virtual Services Appliance. These include up to six Cisco Nexus 1000V VSMs, a NAM, and up to three VSGs.
For more information about modules, see the Cisco Nexus Virtual Services Appliance Software Configuration Guide, Release 4.2(1)SP1(5.1) .
Cisco Nexus Virtual Services Appliance software is preinstalled as an ISO image that includes the following components:
Cisco Nexus Virtual Services Appliance kickstart image This is the Cisco Nexus Virtual Services Appliance Management Software.
The Cisco Nexus Virtual Services Appliance management software is compatible with the following software versions:
Cisco Nexus 1000V: All releases (no dependency)
Cisco Network Analysis Module (NAM) Release 5.1.2 and later
Cisco Virtual Security Gateway (VSG) Release 4.2(1)VSG1(3.1) and later
The Cisco Nexus Virtual Services Appliance management software works with all Ethernet switches.
The Cisco Nexus 1110-S VSA maximum supported configuration (up to six VSBs total) is either:
6 Cisco Nexus 1000V VSMs, each capable of managing 64 VMware ESX or ESXi hosts for a total of 384 VMware ESX or ESXi hosts
6 Cisco Virtual Security Gateway (VSG) VSBs
The Cisco Nexus 1110-X VSA maximum supported configuration (up to 10 VSBs total) is either:
10 Cisco Nexus 1000V VSMs, each capable of managing 64 VMware ESX or ESXi hosts for a total of 640 VMware ESX or ESXi hosts
10 Cisco VSG VSBs
Table 1 provides a weighting matrix that can be used to determine the maximum capacity of VSBs on the Cisco Nexus Virtual Services Appliance.
Table 1 Weighting Matrix (to Determine Maximum Capacity of VSBs on Cisco 1100 Series VSBs
Cisco Nexus Virtual Services Appliance
Cisco Nexus 1110-S
Less than or equal to 6
Cisco Nexus 1110-X
Less than or equal to 10
No Error Message for Upgrade Failure
If an upgrade to Cisco Nexus Virtual Services Appliance Release 4.2(1)SP1(5.1) from an earlier release of the Cisco Nexus 1010 Management Software fails, no error message is displayed. This limitation is associated with CSCub39408.
Domain ID and HA Role Cannot Be Changed
The configured domain ID and high availability (HA) role (standalone, primary, or secondary) can never be changed. To change the domain ID or the HA role, you must use the write erase command.
Boot Variables Cannot Be Manually Configured
The boot variables cannot be configured manually. To change the boot variables, you must enter the install nexus1010 command. This command installs the software from the bootflash:/repository directory and updates the boot variables with the name of the software image.
Changing the Control or Mgmt VLAN Requires a Reload
If you change the control or management VLAN, you must reload the software before the change takes effect.
The Cisco Nexus Virtual Services Appliance cannot resolve a domain name or hostname to an IP address.
No Local Copy in bootflash:export-import
Do not make a copy of the tar files in the export-import folder. Copying files locally might cause a split-brain condition and lead to HA issues.
Always copy the tar files to remote storage after entering the export command and then delete it from export-import folder.
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Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and coincidental.