How do
you decide what to do when it comes time to buy a new computer? Do you go down
to Staples or Costco and see what is on sale? Call your Dell sales rep?
Here are
some things to consider when deciding how to spend your hard earned money:
Instead
of starting with hardware features, start with what needs to get done in your
business. What do you want the computer to do for you? The next step is to find
the software that will do what you need. Then find the hardware that makes that
software work.
Base
your decision on well thought out, prioritized values. A purchase that puts cost
before reliability is very different than one that puts reliability before cost.
Some things to consider:
Total
Cost of ownership – equipment
lifetime, warranty, ease of maintenance, cost of repairs. Can it be upgraded?
Will the vendor be there next year to support it?
Compatibility – Does it run the
software you want to use. Will it run the next version? Does it work with your
network?
Reliability – What does it cost you
for down time? Is the hardware too close to the “Bleeding Edge”? Does the vendor
provide accurate timely information about known problems? Is it easy to get
timely service- even in Visalia?
Ease
of Use – Can your staff understand
and use it? How much training is needed?
Specifications - Are there certain
features it must have to run your software (USB ports, enough memory, etc.)?
Speed
– Usually inversely related to reliability. How much difference does it make to
the business function the computer performs if it is faster?
Obsolescence –There are significant
benefits to buying identical hardware for workstations. How long will you be
able to get this exact model? Is the technology being used at the beginning or
end of its lifetime?
Best
practices for workstations:
Stick
with well supported motherboard chipsets. We like Intel, because they provide
detailed, current bug reports and timely fixes. Because they have such a large
market share, they set standards for compatibility.
Get
adequate power supplies, and use a surge strip or workstation UPS.
Bigger
monitors mean more productivity. If you have the space, go big.
Buy
identical hardware. This allows you to use “Cloning” to manage your
workstations. You take an “Image”, or picture of the software on the hard drive,
and can copy it to any other workstation, saving hours of setup time. If a hard
drive fails, you can put in a new hard drive, copy on your image, and be done in
a matter of minutes. Standard hardware means fewer things to troubleshoot when
you have a problem. Identical parts make it very convenient to troubleshoot by
swapping between working and non-working machines. Your software can be
standardized, because you know how it will behave on this hardware.
Best
Practices for servers:
Reliability comes first, and second, when it comes to servers. Calculate the
hourly cost of down time for your server. Then spend the money to make it
reliable enough for your needs.
Base
capacity on what the server will do – many software vendors offer guidelines for
what you will need.
If you
can afford it, buy an integrated server from a well known vendor. HP, Compaq &
Dell all make excellent servers. If not, have the server built from Server
components. There are motherboards designed for servers, cases designed for
servers, etc.
Use ECC
ram. ECC Stands for Error Correcting - It keeps a parity bit for every memory
location to make sure that the memory is accurate.
Get Dual
redundant Power supplies. The most likely parts to fail are the hard drive and
the power supply.
Get
Mirrored hard drives, or better yet hardware raid. Use SCSI Drives.
Buy a
dedicated, Intelligent (comes with software) UPS, or battery backup. One per
server. UPS’s tend to last longer if you get a bigger battery than you need.
Get Dual
processors if possible. This prevents the possibility of one program or function
slowing down the whole network.
Don’t
buy more than you think you will need in the next 18 months. Figure on upgrading
or replacing it every 2 years or so.
Plan
adequate backups. Get a reliable tape backup drive, and rotate backup tapes on a
schedule. Get a big enough tape drive- make sure you won’t have to change tapes
to get everything backed up.
If you
have more than one server, get identical hardware if at all possible.
If
possible, get help from an expert, preferably someone other than the one trying
to sell you their hardware. Things change quickly. Make sure you are properly
informed before investing your money and time.