Category Archives: Uncategorized

Manually Switching Nexus1000v Active VSM to Standby

Posted on March 23, 2016 by Gkhan

Manually Switching Nexus1000v Active VSM to Standby Use this procedure to manually switch an active VSM to standby in a dual supervisor system. BEFORE YOU BEGIN Before beginning this procedure, you must know or do the following: •You are logged … Continue reading →

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Nexus1000v Installation and configuration manual CLI

Posted on March 19, 2016 by Gkhan

Nexus1000v Installation and configuration manual CLI [gview file=”https://gkhan.in/wp-content/uploads/2016/03/n1000v_gsg_4setup_cli.pdf”]

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LUN and Storage Group mapping rule for EMC VNX SAN Storage

Posted on March 14, 2016 by Gkhan

LUN and Storage Group mapping rule for EMC VNX  SAN Storage Product: CLARiiON AX Series, CLARiiON CX Series,CLARiiON iSCSI Array, VNX, VNXe. Description: The rule is that multiple hosts can access one Storage Group, but one host cannot access multiple … Continue reading →

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Windows 2012 Server Network Disconnection issue

Posted on March 1, 2016 by Gkhan

Windows 2012 Server Network Disconnection issue I have installed Windows 2012 Server on VMWare ESX Server .Server was not being used it was idle I getting issue as Network was being disconnected .Network was going to sleep mode . To … Continue reading →

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How to get RDM list in your VMware infrastructure

Posted on December 29, 2015 by Gkhan

How to get RDM list in your VMware infrastructure. Some time we require information about our virtual machines connected to which RDM .Below are the usefull powershell script to generate a csv report . VMName: (Display) name of the VM … Continue reading →

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How to get WWN of all your ESXi Servers from Power CLI

Posted on December 29, 2015 by Gkhan

How to get WWN of all your ESXi Servers from Power CLI Some time require to know our ESXi servers  WWN information for your record if you are having Cisco UCS or you are coordinating with Storage Administrator .That time … Continue reading →

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How to install vos3000 2.1.2.4 on centos

Posted on December 16, 2015 by Gkhan

How to install vos3000 2.1.2.4 on centos Vos3000 2.1.2.4 can be install on 32 bit or 64 bit Centos Linux. Before Installation we will check the following. 1- Check Linux version and Kernel version #cat /etc/redhat-release #uname -m If Linux … Continue reading →

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How to troubleshoot SIP Connection using tcpdump

Posted on November 27, 2015 by Gkhan

How to troubleshoot SIP Connection using tcpdump To check SIP connection through tcpdump use the following command tcpdump -nqt -s 0 -A -i eth0 port 5060 where: -n do not convert IP address to DNS names -q be quite, print less … Continue reading →

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VOS3000 Server quick Backup

Posted on September 19, 2015 by Gkhan

VOS3000  Server quick Backup If you want to take backup of VOS3000 Server without CDR  for emergency . just take a backup of all tables except CDR . Below are the example:-

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How to change VOS3000 admin client port

Posted on September 19, 2015 by Gkhan

How to change VOS3000 admin client port If you want to change vos3000 client default admin port . you can do it without changing anything on vos3000 server setting you need to just configure the iptables on server. Below are … Continue reading →

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