What do system administrators do?

Almost every company employs system administrators. I have noticed that is it not always obvious to everyone what these system admins do all day.

Therefore I created the list below with tasks that system admins usually do in daily practice:

  • Installation and maintenance of hardware and software;
  • Daily checks of the systems;
  • Organising a fast repair of the service in case of an incident or emergency;
  • Applying changes based on RFC's;
  • Monitoring systems;
  • Creating and maintaining scripts;
  • Creating and checking daily back-ups;
  • On demand restoring of data from back-ups;
  • Performance tuning;
  • Installing patches;
  • Checking the security of systems and keeping it up-to-date;
  • Patching systems and firmware;
  • User account management;
  • Answering second-line technical questions;
  • Documenting systems and keeping documentation up-to-date;
  • Keeping informed about their professional knowledge.

So, be nice to your system administrators: they are very busy!


This entry was posted on Thursday 27 December 2007

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My Book

DevOps for infrastructure

Infrastructure as a Service (IaaS)

(Hyper) Converged Infrastructure

Object storage

Software Defined Networking (SDN) and Network Function Virtualization (NFV)

Software Defined Storage (SDS)

What's the point of using Docker containers?

Identity and Access Management

Using user profiles to determine infrastructure load

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Desktop virtualization

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x86 platform architecture

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Mainframe Architecture

Software Defined Data Center - SDDC

The Virtualization Model

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Performance and availability monitoring in levels

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Solution shaping workshops

Architecture life cycle

Project managers and architects

Using ArchiMate for describing infrastructures

Kruchten’s 4+1 views for solution architecture

The SEI stack of solution architecture frameworks

TOGAF and infrastructure architecture

The Zachman framework

An introduction to architecture frameworks

How to handle a Distributed Denial of Service (DDoS) attack

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Stakeholders and their concerns

Skills of a solution architect architect

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Purchasing of IT infrastructure technologies and services

IDS/IPS systems

IP Protocol (IPv4) classes and subnets

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IT Infrastructure Architecture model

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Where to build your datacenter

Availability - Fall-back, hot site, warm site

Reliabilty of infrastructure components

Human factors in availability of systems

Business Continuity Management (BCM) and Disaster Recovery Plan (DRP)

Performance - Design for use

Performance concepts - Load balancing

Performance concepts - Scaling

Performance concept - Caching

Perceived performance

Ethical hacking

Computer crime

Introduction to Cryptography

Introduction to Risk management

The history of UNIX and Linux

The history of Microsoft Windows

The history of Novell NetWare

The history of operating systems - MS-DOS

The history of Storage

The history of Networking

The first computers

History of servers

Tips for getting your ITAC certificate

Studying TOGAF

Is your data safe in the cloud?

Proof of concept

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Measuring Enterprise Architecture Maturity

Human factors in security

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ITAC certification

Open group ITAC /Open CA Certification

Human factors in security

Google outage

SAS 70

TOGAF 9 - What's new?

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Spam is big business

Why IT projects fail

Power and cooling

Let system administrators participate in projects

The 7 Habits of Highly Effective People

Archimate

A meeting with John Zachman

ITAC - IT Architect certification

Personal Information is Personal Property

The Irresistible Forces Meet the Movable Objects

Hardeningscheck and hack testing for new servers

Knowledge management

Information Lifecycle Management - What is ILM

LEAP: The Redmond trip

LEAP: The last Dutch masterclasses

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Is software ever finished?

SCADA systems

LEAP - Halfway through the Dutch masterclasses

Securing data: The Castle versus the Tank

Non-functional requirements

LEAP - Microsoft Lead Enterprise Architect Program

Reasons for making backups

Log analysis - Use your logging information

Archivering data - more than backup

Patterns in IT architecture

Layers in IT security

High performance clusters and grids

Zachman architecture model

High Availability clusters

Monitoring by system administrators

What is VMS?

IT Architecture certifications

Storage Area Networks (SAN)

Documentation for system administrators

Rootkits

Presentations: PowerPoint sheets are not enough

99,999% availability

Linux certification: RHCE and LPI

IT Infrastructure model

Sjaak Laan


Recommended links

Ruth Malan
Gaudi site
Byelex
XR Magazine
Esther Barthel's site on virtualization


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Disclaimer

The postings on this site are my opinions and do not necessarily represent CGI’s strategies, views or opinions.

 

Copyright Sjaak Laan