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listmail
Posts:445
 | | 09/24/2008 1:33 PM |
| Wow. What else are you doing on the DCs? Does the current use load justify
that spec? Are you expecting to grow that much?
I would likely do the six disks in a RAID10 and split into two (maybe 3)
logical partitions, OS and then DIT/LOGS/SYSVOL. You aren't building an
Exchange or SQL Server. Watch the perf counters for your disks on your
current DCs. If you aren't caching your entire DIT you will see that log
accesses are a rounding error next to the DIT accesses. If you are caching
your DIT, you will likely see very little IO for logs or DIT except during
heavy auth periods when the DIT will likely pick up.
--
O'Reilly Active Directory Third Edition -
http://www.joeware.net/win/ad3e.htm
_____
From: ActiveDir-owner@mail.activedir.org
[mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Sabharanjak, Ravi
BGI SF
Sent: Wednesday, September 10, 2008 1:46 PM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] OT:Thinking of going 64 bit?
We'll be shortly going to x64 on our DC's. The DIT is about 3 gb currently,
which should fit nicely in-RAM, with 16 GB on the server. We would be having
6 disks configured into 3 spindles (mirrors of 2 disks each), one spindle
each for the OS, logs and the DIT file.
What has been the experience of people going to x64 for the DC's? Are there
any major design / configuration changes that you've had to make because of
x64? How about pagefile configuration etc?
Thanks,
-Ravi
_____
From: ActiveDir-owner@mail.activedir.org
[mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of joe
Sent: Wednesday, September 10, 2008 8:30 AM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] OT:Thinking of going 64 bit?
You can load the full DIT into RAM on x86 for many many many companies. It
simply depends on the size of the DIT. I expect the vast majority of users
of AD (thinking of all the mom and pops as well as medium and large, etc)
will have their DIT fit into RAM with a normal x86 machine. Prior to loading
Exchange into an AD Forest the DIT for one company I worked with with a
couple of hundred thousand users fit in less than 800MB of RAM on Windows
2000. Exchange is one of the top causes of DIT bloat, another reason I like
Exchange resource forests. 
This really is, I think, more of a push to get people's servers onto x64 so
they can drop the x86 support for them and the resulting savings to MSFT
from having to support both. It also allows them to start making assumptions
based on x64 for other server products.
--
O'Reilly Active Directory Third Edition -
http://www.joeware.net/win/ad3e.htm
_____
From: ActiveDir-owner@mail.activedir.org
[mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Michael B. Smith
Sent: Wednesday, September 10, 2008 10:58 AM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] OT:Thinking of going 64 bit?
Drop support for /3gb, /userva/, and /pae comes to mind.
I know that lots of performance issues in exchange went away by going to
x64, and I know of a couple that go away in AD (loading the full dit into
memory pops to mind).
If css/pss no longer has to take those kinds of calls.it represents a
savings to MSFT and a reduction in problems for the client.
Regards,
Michael B. Smith
MCITP:SA,EMA/MCSE/Exchange MVP
http://TheEssentialExchange.com
From: ActiveDir-owner@mail.activedir.org
[mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of joe
Sent: Wednesday, September 10, 2008 10:43 AM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] OT:Thinking of going 64 bit?
To get people out onto the dance floor....
--
O'Reilly Active Directory Third Edition -
http://www.joeware.net/win/ad3e.htm
_____
From: ActiveDir-owner@mail.activedir.org
[mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Brandon Shell
Sent: Wednesday, September 10, 2008 10:37 AM
To: ActiveDir@mail.activedir.org
Subject: Re: [ActiveDir] OT:Thinking of going 64 bit?
That is how I perceive it working as well... but I am curious what the value
will be.
On Wed, Sep 10, 2008 at 10:08 AM, joe <listmail@joeware.net> wrote:
It can be the same code base, they just don't release the x86 bins...
--
O'Reilly Active Directory Third Edition -
http://www.joeware.net/win/ad3e.htm
_____
From: ActiveDir-owner@mail.activedir.org
[mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Brandon Shell
Sent: Wednesday, September 10, 2008 10:03 AM
To: ActiveDir@mail.activedir.org
Subject: Re: [ActiveDir] OT:Thinking of going 64 bit?
Perhaps I am off base, and yes I clearly see the "server" reference, but it
is my understanding the idea was to keep 2k8 and Vista on the same base. I
wonder what impact , if any, this will have on Vista.
I suppose we should take it to mean that the R2 extensions will only be
available for x64.
p.s. I realize there is a difference between RX and SPX.
On Wed, Sep 10, 2008 at 9:46 AM, Coleman, Hunter <hcoleman@mt.gov> wrote:
"Microsoft announced several years ago that Windows Server 2008 would be the
last server OS available in 32-bit. (And let's not overlook the word
"server" there! I'm not talking about the desktop.) Windows Server 2008 R2
will be 64-bit only."
(http://blogs.technet.com/windowsserver/archive/2008/09/08/64-bit-windows-se
rver-hyper-v-and-the-future.aspx)
-----Original Message-----
From: ActiveDir-owner@mail.activedir.org
[mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Michael B. Smith
Sent: Wednesday, September 10, 2008 7:37 AM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] OT:Thinking of going 64 bit?
Mark (or anyone else), do you have a reference for this?
(I support it - I just want a reference.) :-)
Regards,
Michael B. Smith
MCITP:SA,EMA/MCSE/Exchange MVP
http://TheEssentialExchange.com <http://theessentialexchange.com/>
-----Original Message-----
From: ActiveDir-owner@mail.activedir.org
[mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Grillenmeier, Guido
Sent: Wednesday, September 10, 2008 9:23 AM
To: ActiveDir@mail.activedir.org
Subject: RE: [ActiveDir] OT:Thinking of going 64 bit?
Yep, they've touted this for a while now. Makes perfect sense.
/Guido
-----Original Message-----
From: ActiveDir-owner@mail.activedir.org
[mailto:ActiveDir-owner@mail.activedir.org] On Behalf Of Mark Parris (L)
Sent: Wednesday, September 10, 2008 8:04 AM
To: ActiveDir
Subject: [ActiveDir] OT:Thinking of going 64 bit?
True to their word:
I read yesterday that Windows 2008 R2 will ship as a 64bit version only.
Regards,
Mark Parris
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