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Tuning and troubleshooting UNIX

A 5 day
training course

Tuning UNIX training course description

This course is for experienced administrators. Advanced troubleshooting techniques are shown using crash and truss. Tuning the performance of UNIX is looked at in detail along with the structure of the UNIX kernel. The course uses hands on with Solaris and Linux but can be customised for other UNIX variants.

Key outcomes from this course

By the end of the course delegates will be able to:
  • Customise the UNIX kernel.
  • Use UNIX tools to analyse problems.
  • Monitor the performance of UNIX.
  • Add and remove device drivers to and from the UNIX kernel.
  • Tune the UNIX system.
  • Describe the organisation and implementation of the filesystem.

Tuning UNIX training course details

Who will benefit:
System administrators.
Network administrators.
Support personnel
Essential UNIX administration
Knowledge of shell programming and C would be useful though not essential.
5 days

Training approach

This structured training course seeks to build upon workbook learning through the use of group exercises, dynamic discussion and individual tasks in order to deliver an engaging and interactive module that will ensure all candidates are able to transfer their new skills into the workplace.

Overall ratings for this course:

Course review

"Hard concepts were explained very simply."
J. S., Framestore CFC
"Excellent presentation - very good course structure."
B. M., London Internet Exchange

Tuning UNIX training course contents

UNIX versions
UNIX flavours, how the version of UNIX affects tuning and troubleshooting.

System sizing and estimation
Overview, performance concepts, benchmarks, system sizing, performance tuning process, system resources.

Overview of the UNIX kernel
Micro kernels, Monolithic kernels, Kernel modules, the kernel.

Kernel tunings
Overview, Tuneable parameters, changing parameters, static changing, dynamic changing.

Problem analysis tools
Passwords, recovering lost root passwords, common problems, log files, Kernel errors, PANIC, crash, core dump analysis, syslog, process tracing with truss, fsdb.

Performance monitoring tools
Cron tables, Systems accounting, sar, iostat, vmstat, kernel profiling and tracing.

CPU bottlenecks
Issues and approaches, sar, ps, top, systems accounting, Assessing the load, priorities, customising the scheduler, dispatcher tables, multiple CPUs.

Memory bottlenecks
Memory layout, paging, swapping, calculating process sizes, performance solutions, controlling paging and swapping.

Disk bottlenecks
Disk structure, the buffer cache, monitoring and balancing the load, tuning actions, virtual disks.

Filesystem types - s5, ufs, Vxfs, ext3, structure, problems, performance

Why Choose Us

SNT trainers score an average of over 90% on the three main areas of:
  • Ability to teach
  • Technical knowledge
  • Answering questions
“Excellently presented by a very knowledgeable and enthusiastic trainer.” P.D. General Dynamics

We limit our maximum class size to 8 delegates; often we have less than this. This ensures optimal interactivity between delegates and instructor.
"Excellent course. The small class size was a great benefit…" M.B. IBM

We write our own courses; courseware does not just consist of slides and our slides are diagrams not bullet point text. A typical chapter provides clearly defined objectives with a chapter overview, slides with text underneath, a quiz at the end to check the learning of the students. Hands on exercises are at the end and are used to reinforce the theory.

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