Mark this
meeting on your calendars today. Paul Massiglia, a 25 year storage veteran, well respected author
and technical speakeer will offer some insights on
storage vendor and the ever present tradeoffs on features, benefits and costs.
There is no charge
to attend and pizza will be served compliments of our
sponsor. Pizza arrives between 11:20 and 11:30.
AUGUST
SNUG MEETING ANNOUNCEMENT
Location: SRP,
For
a map, go to: http://maps.google.com/maps?q=1600+N+Priest+Dr,+Tempe,+AZ+85281&iwloc;=A&hl;=en
Paul Massiglia
has been associated with the data storage industry for over 25 years. During
that time, he has held engineering and marketing positions with major storage
hardware and software suppliers, including, the former Digital Equipment
Corporation, Adaptec Inc., Quantum Corporation, and VERITAS (now Symantec),
where he created and directed VERITAS Publishing. He has been vice-chairman of
the RAID Advisory Board, a Board of Directors member of the SNIA, as well as a
member of other industry organizations including the Fibre Channel Association,
the Fibre Channel
ABSTRACT:
Storage
vendors habitually promote the virtues of their product features over those of
competitors--synchronous vs. asynchronous replication, RAID-4 vs. RAID-5, iSCSI
vs. Fibre Channel, and so forth. But in point of fact, in this day and age, one
would be hard-pressed to find an overtly bad feature in a commercial storage
system. It would be more accurate to say that storage system technology is a
zero-sum game; an advantage gained by utilizing some technique is inevitably
matched by a sacrifice in some other dimension. Take replication for example.
Replicating synchronously means never having to say, "I'm sorry, I lost a
few updates." But being able to say that has a cost--in money to pay for
low-latency network links, and in time to wait for less responsive
applications. And so it is throughout storage system technology. Wherever an
advantage is gained, a cost is paid somewhere else.
To
demonstrate this principle, this presentation will focus on two features of
storage systems that are particularly rife with implementation
alternatives--snapshots and replication. Inherent characteristics of different
implementation techniques will be derived, and their impact on the rest of the
IT ecosystem discussed. Full-size vs copy-on-write
snapshots will be explored, as will file-level vs
block-level alternatives. In the replication realm, continuous vs episodic, file vs. block, and synchronous vs.
asynchronous will be contrasted. The author hopes to demonstrate the premise
that in storage systems, there is no clear-cut 'winner' suitable for all
circumstances. Instead, every technique has its advantages and disadvantages,
and it becomes the job of the user to decide what is most important to him and
deploy accordingly.
OUR SPONSOR:
Agámi Systems is the leading
provider of unified network storage solutions with integrated live file system
replication.
11:30-noon
Lunch (Pizza and Soft Drinks)
1:00-1:15 Questions
You Must RSVP to attend: Register by sending an e-mail
to Warren Avery (warren@instockinc.com) please add into the body the names
of anyone that will be coming with you.
Note:
If SRP security does not have your name on the attending list you will not be
admitted.
Meeting Sponsor: Agami Systems www.agami.com