vRealize Log Insight Authentication with Active Directory

Problem: When configuring vRealize Log Insight for authentication with Active Directory, the following errors were displayed in the ui_runtime.log (ssh to the vRealize Log Insight appliance to check): Caused by: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Server not found in Kerberos database (7))] at com.sun.security.sasl.gsskerb.GssKrb5Client.evaluateChallenge(Unknown Source) … 73
Read More »

Failed to obtain ICMP socket: Operation not permitted

When executing a program (check_icmp) as part of the Check_MK software, the following error was displayed: check_icmp: Failed to obtain ICMP socket: Operation not permitted The “check_icmp” program had the following “ls -l” listing: -rwsr-x---. 1 root omd 4874 Aug  7  2018 check_icmp Note the 4750 octal value for the file’s permissions above. The check_icmp
Read More »

QoS and poor SAN performance in Cisco UCS

Symptoms: Very poor SAN performance on Cisco UCS B200 M3 Blades. Deploying VMs from templates and cloning VMs hang. CPU stats in a VM indicated 100% cpu in wio state Background: Cisco UCS provides a QoS feature to allow prioritization of certain types of traffic. Cisco UCS supported multi-hop FCoE from release 2.1 onwards.  
Read More »

Service Profile Association failure due to dynamic vNICS

Symptoms: The following errors were encountered when associating a Service Profile with a B200 M3 UCS Blade: ERROR 1: SRIOV PF/VF vNIC configuration failure. Incompatible Bios Policy Settings for SRIOV vNICs There are not enough resources overall. ERROR 2: [FSM:STAGE:REMOTE-ERROR]: Configure adapter for pre-boot environment(FSM-STAGE:sam:dme:ComputePhysicalAssociate:NicConfigPnuOSLocal)   Background:  Cisco‚Äôs Virtual Interface Cards (VIC) such as the
Read More »