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Category: Sysadmin

Restart EMC VNX Management Services in Unisphere

Posted on March 5, 2012 by tkrn

Restarting the Management Services for EMC Unisphere is simple and it does not require an outage. The process will require you to log into each Service Processor separately through a web interface. 1. Open up a web browser and goto https://<Service Processor IP/FQDN>/setup 2. Login using the ‘sysadmin’ user account and password. 3. Scroll down to […]

Firmware Update on Dell PowerConnect M6220 Switch in M1000e Blade Chassis

Posted on December 25, 2011 by tkrn

To update the PowerConnect M6220 I was force to connect via a Null Modem Cable to first configure an IP address then followed up the upgrade procedure. I was able to locate a cable off of eBay to connect to the console of the M6220 switch in the M1000e chassis. The cable is a “USB” to […]

Upgrade Brocade Fabric OS FOS firmware Brocade 4424 in Dell M1000e Blade Chassis Guide

Posted on October 20, 2011 by tkrn

It appears there is a lack of information on upgrading the Brocade Fabric Operating System (FOS) on an I/O Module within Dell PowerEdge M1000e Blade Chassis. This guide will show you the step-by-step on how to upgrade your internal Brocade switch in a Dell Blade Chassis and what can be expected. First, you will need to […]

Cisco MAC Address Flapping Causing High CPU Utilization

Posted on October 18, 2011 by tkrn

A MAC flap is caused when a switch receives packets from two different physical/logical interfaces with the same source MAC address. The switch then learns where the MAC address is and puts in to a table. This table has the physical/logical interface and the MAC address. When flapping occurs it causes this table to be […]

Commonly Used NaviSECCli Commands

Posted on September 28, 2011 by tkrn

Here is a list of good commands that I use frequently when working with an EMC SAN, in particular, a Celerra or VNX series. Enjoy! Summary: Gets the disk information, state and other metrics. Note: that 1_1_14 is Bus 1 Enclosure 1 Disk 14. Command: Result: Summary: Get all LUNs that are trespassed (not on […]

SNMP v3 + Cisco IOS Crash Course

Posted on August 17, 2011 by tkrn

SNMPv3 allows for authentication and encryption (AES, DES, 3-DES) for managing core routers and switches. CiscoWorks LAN Manager Solution (LMS) requires SNMPv3 to be enabled and setup correctly for doing port VLAN tagging and a various other features through the LMS web interface. Here is a simple crash course on setting up SNMPv3 on an […]

Symantec Backup Exec RALUS Linux Agent ///// Error

Posted on August 3, 2011 by tkrn

Dealing with Symantec is a complete nightmare and it’s more of a nightmare when you feel like you’ve have been held hostage by a product that does not have the support or the quality of code that it needs to be considered an ‘enterprise’ software solution. As you’ve already guessed, we are talking about Symantec […]

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