list five ways that server
their lives — and reveal how
they handle each headache.
BY STACY COLLETT
SERVER VIRTUALIZA- TION o;ers a host of e;ciencies, but storage administrators say it may open a can of worms on the storage side. Resulting headaches can include huge I/O bottle- necks for primary and backup storage, as well as complicated disaster and
recovery e;orts, among other things.
With multicore CPUs being utilized to create
multiple virtual machines on servers — and
since the typical large-enterprise server farm
is 70% to 80% virtualized — there’s a lot more
application I/O moving back and forth between
application servers and primary storage, and
between primary storage and backup storage.