Common decency is taking this to private email.. which I am now going to do.
Sorry to bother the rest of this list with crap..
-----Original Message----- From: Jay Orr [SMTP:orrjl@stl.nexen.com] Sent: Friday, March 31, 2000 8:48 AM To: Paquette, Trevor Cc: toasters@mathworks.com Subject: RE: benchmark
By restating someone's question as an answer, it is not "asked and answered". I had put to this forum the question of what does Netapps and Sun do, since there are many Netapp people on this and many people who use Sun here.
Your answers have been less then helpful - If you don't know then why did you reply to the original posting? It was a SIMPLE QUESTION, I didn't ask for the theory of powers of two, I didn't ask "who should I ask", I didn't say "how does Trevor feel about this?" I simply posted to this informative list a simple question of WHAT DOES NETAPP and SUN do in formulating what they consider MB and GB.
Please, if you have nothing useful to add to a discussion, don't interject. That's just common decency...
On Fri, 31 Mar 2000, Paquette, Trevor wrote:
Oh brother..
asked and answered..
"Each vendor will have to be asked what method they use in the real
world."
The answer is "ask them.."
Subject Closed.
-----Original Message----- From: Jay Orr [SMTP:orrjl@stl.nexen.com] Sent: Friday, March 31, 2000 7:30 AM To: Paquette, Trevor Cc: Karl Swartz; toasters@mathworks.com Subject: RE: benchmark
Yes, and THAT WAS MY ORIGINAL QUESTION THAT YOU RESPONDED TO - what
do
Netapps and Sun do?
On Thu, 30 Mar 2000, Paquette, Trevor wrote:
Each vendor either sticks with powers of 2 (as they should) or they
round
it. Each vendor will have to be asked what method they use in the real
world.
Yes, we all know the theory, but I'm talking real world. As the thread reads, some vendors use 1000 KB = 1MB, while some don't. I
am
asking what is implemented. Do the majority of the unix vendors
adhere
to
the proper base 2 theory of metrics or do they use base 10 combos (i.e. the 1GB = 1000 MB)?
On Thu, 30 Mar 2000, Paquette, Trevor wrote:
Here we go..
A bit is the smallest unit of data in a computer; has a single
binary
value
of either 0 or 1 A byte is a unit of information that is eight bits long. (half a
byte,
or 4
bits is called a nibble)
Computer storage is measured in byte multiples; which are based
on
powers of
Because humans deal mainly with the decimal system, the
resulting
number
is
usually 'rounded off' for humans to better comprehend.
1 Kbyte = 1024 bytes = 2^10 bytes =
1,024
bytes
1 Megabyte = 1024 Kbytes = 2^20 bytes =
1,048,576
bytes
1 Gigabyte = 1024 Mbytes = 2^30 bytes =
1,073,741,824
bytes
1 Terabyte = 1024 Gbytes = 2^40 bytes =
1,099,511,627,776
bytes
1 Petabyte = 1024 Tbytes = 2^50 bytes =
1,125,899,906,842,624
bytes
1 Exabyte = 1024 Pbytes = 2^60 bytes =
1,152,921,504,606,846,976
bytes
= approx. 1 billion GB
> Humm... Fun.. Do you know off hand how Solaris and netapp
defines
a MB
or
> GB? In moving around files I started thinking about this,
since
depending
> on what tool you use you get file sizes in "bytes" "kbytes"
"MB"
or
"GB"
> (a la gnu df, solaris df, etc...) > > On Wed, 29 Mar 2000, Karl Swartz wrote: > > > > Uh, if I can ask a simple (stupid?) question - I was
looking
at
the
> source > > > code for postmark and noticed this : > > > > > > #define KILOBYTE 1024 > > > #define MEGABYTE (1000*KILOBYTE) > > > > > > Isn't a megabite 1024*1024? > > > > It depends on who you ask. Long ago, disk vendors decided
that
they
> > could make their disks look bigger if they defined MB to be
2000
> > sectors (assuming 512 byte sectors, or 8000 sectors for 128
byte
> > sectors), and GB became 1000 MB. Of course they also talked
about
> > unformatted capacity to further inflate the size over
reality.
> > > > In a similar vein, telco people talk about 1K = 1000. The
64K
B-
> > channel in an ISDN line is 64000 bits per second, not 65536. > > > > I'm not sure about networking, but I think FDDI and
100base-T
both
> > have a data rate of 100 * 10^6 bits/second, not 100 * 2^20.
(Not to
be
> > confused with the signalling rate, which as I recall is 125
10^6
for
> > FDDI with some flavor of 4/5 encoding, and possibly
something
similar
> > for 100base-T.) > > > > What's right for Postmark? Good question. It looks like
Jeff
picked
> > the standard for disk sizes, but it's not clear that's the
standard
> > most applicable to this case. Aren't standards wonderful?
:-)
> > > > -- > > Karl Swartz Network Appliance Engineering > > Work: kls@netapp.com http://www.netapp.com/ > > Home: kls@chicago.com http://www.chicago.com/~kls/ > > > > ----------- > Jay Orr > Systems Administrator > Fujitsu Nexion Inc. > St. Louis, MO
Jay Orr Systems Administrator Fujitsu Nexion Inc. St. Louis, MO
Jay Orr Systems Administrator Fujitsu Nexion Inc. St. Louis, MO
Jay Orr Systems Administrator Fujitsu Nexion Inc. St. Louis, MO