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Our current hardware system requirements are available in the support sec-
tion on our web site www.dexis.com, from your representative, and from
our Customer Care Center. As technology changes, our requirements are
updated to reflect such changes. Please consult current DEXIS systems re-
quirements before the purchase of any hardware.
Note that systems meeting only the minimum requirements may fail to de-
liver a satisfactory experience. Systems with faster processors, more mem-
ory, and bigger, faster hard drives will significantly enhance performance.
2.4.1 Caution: Hardware Upgrades
Every change in hardware exposes your business to risk. Computers con-
taining patient records are "mission critical." Careful consideration is re-
quired in order to minimize risk before changes are made to any system
that is currently in use. Whether the change is to be made to hardware or to
the operating system, you should be prepared to deal with an unexpected
outcome including a catastrophic loss of data. For this reason, we offer the
following suggestions for use with mission-critical systems:
Instead of upgrading hardware or the operating system, consider purchas-
ing a new pre-configured system. Computers are amazingly inexpensive to-
day; bringing-up a new system in parallel with an existing system is a good
way to avoid placing the existing system at risk. The existing system will re-
main productive while the new system is qualified and readied for full ser-
vice. Consider the new computer as cheap insurance, but it's even better
than insurance because you get to keep it.
If you must upgrade your existing system, consider purchasing an addition-
al hard drive and making a bootable, literal copy of the existing hard drive.
Remove the original hard drive and make the changes to the newer (and
probably larger) hard drive. With the original hard drive removed from the
computer, it is not at risk and all of your data will be safeguarded. If the new
changes are found to be unsatisfactory after a suitable evaluation period,
you can always re-install the old hard drive and fully restore your previous
environment.
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