I finished on my dissertation in May 1997 on modeling storage systems.
for the Sigmetrics '98 talk given on 6/26/98.
This is a shortened version of the NEC talk.
for a talk given at NEC on 8/11/97, presenting my dissertation
work. This is an updated version of the dissertation defense.
- cover sheet/slides
used for my dissertation defense given in 1/97.
My disk model
I developed an analytic performance model of a SCSI disk
that determines the service time of a request in a
The inputs into the model are the workload
use patterns and a specification of the disk.
Two implementations of the model are available: in
and in C,
along with the multiple disk model.
Uses of the disk model
One use of such my model is self-managing,
self-configuring storage systems.
These types of storage systems are discussed in an
Extensions to the disk model
I might have done some (prehaps unpublished) work on the following extensions
to the disk model:
- modeling disk arrays
- supporting multiple workloads on a device
- improving the approximation for the
partial hit probability of the model for the disk cache
- modeling multiple disks on a SCSI bus.