computer network services
In practice this leads directly to economic disadvantages: let us assume that high performance
requirements exist for 20% of the data of an application, whilst only average
performance requirements exist for the remaining 80%. In this case it would be desirable
to put just the 20% of the data on a high-end disk subsystem and store the rest of the data
on a cheaper mid-range disk subsystem. Due to the incompatibility of the disk subsystem
device drivers, however, the computer network services application server can only be connected to one type of disk
subsystem, which means that all data must be stored on the high-end disk subsystem.
Ultimately, this means that 80% of the data is taking up storage capacity that is more
expensive than necessary.
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