HOW TO: Upgrade Cisco Nexus 1000V VSM and VEM

Download Cisco Nexus 1000V upgrade code from Cisco web site: These instructions will be for Cisco Nexus 1000V Release 4.2(1)SV1(5.2b).

Software:; Release Notes: Extract the following files from VSM – Nexus1000v.4.2.1.SV1.5.2b.zipVSMUpgrade: nexus-1000v.4.2.1.SV1.5.2b.bin – system software image; nexus-1000v-kickstart.4.2.1.SV1.5.2b.bin – kickstart software image VEM – Nexus1000v.4.2.1.SV1.5.2b.zipVEM: VMware vSphere ESX 4.1 – VMware […]

Unable to access CIMC on Cisco UCS server. Error 2001: Service not available.

I could not access the CIMC of the Cisco UCS C210 M2 server and received a “Error 2001: Service unavailable” error message. All menus / options were also greyed out.

I tried to reboot CIMC (Admin tab, Utilities, Reboot CIMC) but it did not help.

According to Release Notes for UCS C-Series Software, […]

HOW TO: Upgrade Cisco UCS CIMC via CLI


SSH client. Putty, for example; TFTP server. 3CDaemon, for example; CIMC firmware upgrade file. Please check this blog post for the information how to download CIMC firmware.


Upload CIMC firmware upgrade file ‘upd-pkg-c200-m1-cimc.full.1.4.3p.bin‘ to the folder where TFTP server is distributing software from; SSH to CIMC IP address and change management mode to […]

UCS Manager 2.1 “Delmar” Released

New Hardware Features in Release 2.1 Release 2.1(1a) adds support for the following: Cisco UCS CNA M73KR-Q Adapter for B-series M3 VIC 1225 Adapter for C-series C420 M3 Server New Software Features in Release 2.1 Release 2.1(1a) adds support for the following: Storage UCSM based FC Zoning – Direct Connect Topologies Multi-Hop FCoE Unified Appliance […]

HOW TO: Regenerate expired UCS Manager certificate

The default (self-signed) UCSM keyring certificate must be manually regenerated if the cluster name changes or the certificate expires (it is valid for one year).

Affected object: sys/pki-ext/keyring-default Description: default Keyring’s certificate is invalid, reason: expired Cause: invalid-keyring-certificate Code: F0910

Here is what needs to be done:

Make sure Fabric Interconnects have correct time […]

HOW TO: Upgrade Cisco UCS Manager, Fabric Interconnects, I/O Modules and B-Series blade server firmware

These instructions are for Cisco UCS B200 M2 blade server firmware upgrade from 2.0(1q) to 2.0(3a) (Vblock support matrix 2.5.9).

Before you start downloading firmware and upgrading UCS Manager and the blades, it may be a good idea to go through some housekeeping: Login to UCS Manager. Verify overall status of Fabric Interconnects, I/O Modules, […]

HOW TO: Update firmware on Cisco UCS C-Series Rack-Mount Standalone server

These instructions are for Cisco UCS C200 M2 standalone server firmware upgrade from 1.4(2) to 1.4(3c)2 (Vblock support matrix 2.5.9). The procedure for other Cisco UCS server models and UCS-managed servers might be different.

Download server firmware from Cisco Support website; Download Home >; Products >; Unified Computing and Servers >; Cisco UCS C-Series Rack-Mount […]

VMware ESXi Driver for Cisco fnic and Cisco enic

Download VMware ESXi Driver for Cisco fnic and Cisco enic: Cisco fnic driver / fnic driver; Cisco enic driver / enic driver If the links above do not work, login to My VMware > Product & Downloads > All Downloads > VMware vSphere, select vSphere version and click on Drivers […]