For about 10 years in Unix environments, I've been using the ballpark math
of $1.00 per megabyte of data for TCO (Total Cost of Ownership) and it has
served me very well. Disk drives have gotten bigger and cheaper per say,
but we continue to advance the overall technology in ways that keep the
$1.00 math alive. First we just had disks, then we added raid, then we
added fiber, then we added clustering, then we added cache to the disk
controllers, then we added BCV's on EMC (Business Continuance Volumes), and
then we added stand-by Oracle databases. Where will technology take us
from here, I won't even take a SWAG at it, but I know my $1.00 will be
going with me.
Brian P. MacLean
Oracle DBA, OCP8i
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om To: Multiple recipients of list ORACLE-L
<[EMAIL PROTECTED]>
Sent by: cc:
[EMAIL PROTECTED] Subject: Re:RE: Disk is cheap?
om
03/19/02 08:03
AM
Please respond
to ORACLE-L
We say that disk is cheap, but that is a relative term. Yes an individual
drive
may be inexpensive, but if your using anykind or raid or mirroring (as we
are)
then each GB of space is twice as expensive as the individual part because
you
need two drives. Also, don't forget the cost of backing up that drive and
keeping several copies thereof.
Dick Goulet
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Author: =?iso-8859-8?Q?=E0=E3=F8_=E9=E7=E9=E0=EC?= <[EMAIL PROTECTED]>
Date: 3/19/2002 6:08 AM
I beg to differ.
Each disk cost the disk price + 1/24 of the infrastructure costs.
Yechiel Adar, Mehish Computer Services
[EMAIL PROTECTED]
> -----Original Message-----
> From: Stahlke, Mark [SMTP:[EMAIL PROTECTED]]
> Sent: Mon, March 18, 2002 10:33 PM
> To: Multiple recipients of list ORACLE-L
> Subject: RE: Disk is cheap?
>
> Robert G. Freeman - Oracle8i OCP wrote:
> >
> > But disk is cheap, right...?
> > Or is that yet another Urban Legend???
>
> Yes, that's another Urban Legend.
>
> Disk DRIVES are cheap, disk SPACE is not so cheap.
>
> Consider this example: I have a disk cabinet with 24 slots and 23
> disks. The 24th disk is cheap, but how much does the 25th disk cost? In
> addition to the disk drive we need a cabinet, controllers, cache, host
> adapters, cables, floor space, environmental controls, installation,
> configuration, management, maintenance contract, and on and on.
>
> Mark Stahlke
> Oracle DuhBA
> Denver Newspaper Agency
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
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> Author: Stahlke, Mark
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