Tag Archive: Linux


Position Responsibilities

POSITION OVERVIEW

The Technical Support Analyst for SunGard InvestOne’s global clients will be responsible for hands-on technical troubleshooting and support across a variety of platforms for a broad customer client base. This position is part of a global team with local responsibilities from 8am to 8pm.

The Analyst will be responsible for Tier 1 level support, which includes break/fix management and communications to internal stake holders regarding status and problem tracking.

He/She will also be responsible for performance, availability and customer satisfaction for all levels of a series of n-tier distributed web based applications.

PRIMARY RESPONSIBILITIES

• Monitor error alerts from various systems
• Document incidents as warranted
• Answer client questions relating to technical aspects of the application
• Adhere to change control policies
• Responsible for first level technical system support for multiple customers along with implementation of network connectivity for new and existing customers
• Position is 80% technical and 20% project/customer management
• Participation on an on-call rotation is required
• Occasional weekend work is required

Position Requirements

• Bachelor’s degree, preferably in an IT-related discipline, or the equivalent of education and experience
• Minimum of five years of related, technical experience, preferably in the financial systems industry
• Experience with troubleshooting, diagnosis and resolution of complex technical issues as well as escalation for complex web based applications
• Knowledge of Windows and Linux administration
• Knowledge of WebSphere
• Experience with Transact SQL, preferably Sybase
• Excellent communications skills and ability to translate technical concepts
• Excellent interpersonal, analytical, business and technical judgment, negotiation, problem solving, verbal and written communication skills
• Critical thinking skills and a mature approach to troubleshooting is critical
• Knowledge of investment accounting principles is a big plus
• Previous experience as Java developer is desired
• ITIL certification is desired but not required

Interested? (say I referred you on the application form) or this one

For those of you that are thinking about using using libvirt/kvm on Linux… here is a discussion on proposed best practices

It is likely SELinux trying to keep you safe.  Just run:

$ restorecon /home

It will correct the SELinux flags on the /home directory.

A quick test (so take it with a grain of salt):

  1. Huge pages is slightly faster than not using huge pages (~10% with 4 winxp virtual machines copying 512MB from one memory location to another).
  2. KSM is slightly slower then not using KSM (~5% with 4 winxp virtual machines copying 512MB from one memory location to another).

So, at first glance it would appear that we can use a loose rule of thumb:

  1. to consolidate the maximum number of machines, use KSM as it will allow you to over commit the amount of memory on your box.
    1. Risk: if the memory pages are significantly different, you may start swapping in a very bad way. This is where monitoring comes in
  2. to give the best performance to a number of machines, use huge memory pages.. does not allow you to over commit
    1. Risk: if you don’t leave enough memory for the host os, you can crash your machine. This is also where monitoring comes in

This assumes that your host machine has a sound card! :)

Add the args line in your /etc/qemu-server/<vm id>.conf file should give you sound:

args: -soundhw

On my Proxmox VE 1.8, I have several virtual audio devices available.   I’ve had the best luck with ac97 with Windows XP/Vista and Win7.

red:/etc/qemu-server# kvm -soundhw ‘?’
Valid sound card names (comma separated):
pcspk       PC speaker
sb16        Creative Sound Blaster 16
ac97        Intel 82801AA AC97 Audio
es1370      ENSONIQ AudioPCI ES1370
hda         Intel HD Audio

-soundhw all will enable all of the above