Nagios sent us an alert suggesting a virtual machine had a very high load. The OS itself looked fine and nothing appeared wrong with the server itself. Upon firing up vCenter I noticed that the virtual machine in question needed consolidating. Looking at Veeam backups from last night it seemed the job had failed. When right clicking and consolidating Read More…
Author: Jordansphere
I currently work for an ISP on the South coast as a Senior Engineer. I mainly spend my time maintaining the Cloud. CCNA, VCP4/5, VCP-Cloud
Safely Removing and Adding a Physical RDM
Scenario: I have a Physical RDM directly attached to a Virtual Machine (Windows 2008 R2) over a storage network. This was formatted as NTFS on my E: drive. I wanted to physically re-locate the box from one rack to another which would involve shutting down and moving the storage deivce (OpenFiler). The cabling was ready. Here are Read More…
Configuring a Raritan PX2 PDU
After getting a new batch of shiny Raritan PX2 PDUs I thought they would just be as easy to configure as the old PX models. How wrong I was! The new PX2 models ship wiith an Ethernet port, a feature port, 2 USB ports and what looks like a completely different OS. In the past I configured the PX's via Read More…
iSCSI Storage in VMware – A Quick Overview
Today I will be writing a very brief overview on iSCSI storage and how it fits into a VMware environment. In this example I will be referring to a small cloud I have set up using a 3 host ESXi (5.1) cluster which connects to an Equallogic SAN using a software initiator. What is iSCSI? iSCSI encapsulates Read More…
Intermittent iSCSI Connections to Dell MD3200i
Setup: 2 ESXI 5.0 hosts, connecting to a Dell MD3200i SAN via stacked Cisco switches. The setup has 3 LUNS. Problem: The small, private cloud with a webserver and backend DB server (amongst a few other servers ) became inaccessible from the outside world via HTTP/SSH etc. Upon inspection it appeared that the iSCSI storage was flapping. vCenter Read More…
Upgrading vCloud Usage meter 3.0.2 to 3.3
Original vCloud Usage Meter (VCUM) 3.0.2 = 192.168.5.3 New vCloud Usage Meter (VCUM) = 3.3.0 = 192.168.5.6 Steps 1) Download VCUM 3.3.0 OVA from VMWare website 2) Import OVA into via your vCenter (FILE -> DEPLOY OVF TEMPLATE ). Ensure this is on a different IP address to your current Usage Meter (in my case Read More…
Create a PKCS#12 (.p12) file using OpenSSL
Scenario: I wanted to create PKCS12 file to import into a Sonicwall Firewall (FW 5.9.0.4) You'll need. – Certificate from CA (my.crt) – Private key (my.key) – CA Bundle (myCA.crt) – The password for the private key From a UNIX based server pop all of the required files into a specific directory. # openssl pkcs12 Read More…
Show Sync Speeds on Ciscos
Cisco 1841 : # sh dsl int atm0/0 Cisco 1941: # sh controllers vdsl 0/0
Unable to Provision New VMs in vCloud Director. 5.1.x
Scenario: I had just created a new Provider Virtual Data Centre (PVDC) from a new ESXi cluster. When I tried to add a VAPP from the catalog I was presented with an error. Error Message: The problem was actually due to the VM Storage profile not being “enabled” on the new cluster. Read More…
Change DocumentRoot of main site in CPanel
To change the document root of a main site in CPanel you'll need root SSH access. Note that you will be able to change an "Add on domains" via the GUI. # vi /var/cpanel/userdata/{myusername}/{jordansphere.co.uk} Once in Vi change the documentroot: /home/{username}/public_html to whatever you want (eg /home/{username}/public_html/jordansphere.co.uk ) Afterwards you'll need to run this command: Read More…
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