PIN Groups in Cisco UCS Demystified

In last couple of years we have seen a growing market for Cisco UCS Servers. With the changing technology of Software Defined Datacenter, we are moving towards a dimension where lot of Physical design are not taken care properly. Well, Continue reading PIN Groups in Cisco UCS Demystified

Trade-off Factor – Cisco UCS Fabric Failover or OS based NIC Teaming using Dual Fabric

The Cisco UCS system has lot of different components which work together. All these components’ working together seamlessly is what makes UCS look inherent. However a failure can happen at any point and this needs to be dealt with. In Continue reading Trade-off Factor – Cisco UCS Fabric Failover or OS based NIC Teaming using Dual Fabric

Cisco UCS Chassis IOM Bug – Engineering Update

After I wrote the article on the Cisco UCS Chassis issue while upgrading the firmware to version 2.0 (4a), I have exchanged couple of emails with TAC and got a comprehensive update on this. So, what happened that day, as you Continue reading Cisco UCS Chassis IOM Bug – Engineering Update

Major BUG Hit Cisco UCS Chassis – Beware before Updating Firmware 2.0 (4a)

When we have been notified about the EquipmentChassisThermalThresholdCritical BUG which has been tracked with the ID CSCtx52556, we have been told by TAC that, the permanent issue has been fixed on the next release of the Firmware or “later”, which Continue reading Major BUG Hit Cisco UCS Chassis – Beware before Updating Firmware 2.0 (4a)

EquipmentChassisThermalThresholdCritical – BUG Hit Cisco UCS Chassis

Two weeks back I was working on a DC deployment where in we have large number of Cisco UCS Chassis carrying all of our Core Infrastructure services, like, Active Directory, Exchange Servers, SAP Application Servers running on top of RHEL, Continue reading EquipmentChassisThermalThresholdCritical – BUG Hit Cisco UCS Chassis