Re: "You can never have too much RAM ..........."
From: Les Connor (les.connor_at_DEL.cfive.ca)
Date: 10/08/04
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Date: Thu, 7 Oct 2004 19:46:57 -0500
I hear you SuperGrumpy, and actually I mostly agree.
There is a noticeable performance increase, even on a lightly loaded SBS,
when you go from 1 to 2 GB. Not so with 2 to 3. I won't bother again (or
until the need for real metrics comes around).
I've used and not used the /3gb switch for servers with 1 GB or more of ram.
There was some confusion early on, but I believe that the consensus is now
firmly *do not use the switch on sbs, regardless of how much ram is in the
box*. (keeping in mind, I don't have any SBS with more than 3 GB, most are 1
or 2.) I really don't know if that would change if you had 4 GB.
So I have *no* servers with the /3gb switch anymore. But I'll say I never
recognized a problem either way.
Susan has a link to a discussion on the /3gb switch, more than anyone ever
wanted to know about it. (as in, sorry I brought the subject up).
-- Les Connor [SBS Community Member] ------------------------------------- SBS Rocks ! "SuperGumby [SBS MVP]" <not@your.nellie> wrote in message news:%23qJb53LrEHA.896@TK2MSFTNGP12.phx.gbl... > before this gets outta hand. > > OK, one question neeeds changing. > Have you hit the problems SOME people seem to when having more than 2GB > RAM? > > There's been a couple of threads started on performance issues. The > posters either were already or were advised to use /3GB and va switches > but this did not address the issue. In at least two cases removing RAM > down to 2GB seems to have resolved it. > > We have a few reasonably high use SBS's out there, we're not pushing user > count limits but loaded by either intensive use or the addition of third > party software on the SBS. In recent times we are advising the > installation of 2GB RAM but many are still at 1. There are no indications > that performance of these systems would be limited by RAM. > > I'm genuinely interested in the responses to the questions, and maybe a > couple of others. > > Do you run SBS on more than 2GB? > Are you prepared to perform an experiment for me? Please reduce the RAM to > 2GB and monitor system performance, does either gut feel or statistical > data indicate a performance drop? (I sortta don't really expect anyone to > take me up on this. Unfortunately, due to Performance Tuning this may have > a long term effect on the system and may be impacted by the time the > server has been running the larger amount of RAM) > > There's a point of diminishing return. Also, in general I have found that > if more RAM is required very little benefit is gained by going from X to > 1.5X, the next logical step from 2GB is 4GB. Is the cost of the additional > RAM justified? > > > > "Les Connor" <les.connor@DEL.cfive.ca> wrote in message > news:epz0dYHrEHA.3488@TK2MSFTNGP11.phx.gbl... >> I'm not aware of any problems with more than 2 GB ram - what have I >> missed ? >> >> I will say that I've not noticed much benefit from ram over 2 GB. >> >> -- >> Les Connor [SBS Community Member] >> ------------------------------------- >> SBS Rocks ! >> >> >> >> "Geoff Dutch" <Geoff Dutch@discussions.microsoft.com> wrote in message >> news:5358DECA-70FF-4777-917E-3CDAF0ACAE8F@microsoft.com... >>> .... or so i thought until i was reading a post "What are your server's >>> specs?" and "SuperGumby" replied : >>> >>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >>> "How many SBS's do you have with more than 2GB RAM? Have you hit the >>> problems many people seem to when having more than 2GB RAM? Is there >>> some >>> secret thing you do which allows these servers to operate nicely while >>> having >>> more than 2GB RAM?" >>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >>> >>> So i've just ordered a server : >>> >>> PROLIANT ML370 XE-3.0G/533 2X36GB (15K) SCSI 2X512MB G3 x 1 >>> ML370/DL380 G3 XDP3060 DUAL PROCESSOR UPGRADE KIT x1 >>> 18.2GB PLUG ULTRA320 15K SCSI 2 >>> 36.4GB PLUG ULTRA320 15K SCSI 1 >>> SMART ARRAY 641 PCI-X CONTROLLER 1 >>> 2GB 266MHZ DDR PC2100 SDRAM 2 >>> >>> Which will give me 4GB PC2100......... this HP stuff is seriously >>> expensive >>> - have i made a major mistake? >>> >> >> > >
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