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46
votes
12answers
4k views

Good reasons to keep 32-bit Microsoft Windows desktop OSes

Server software has been 64-bit only for a while now (Since Server 2008 R2 for Windows, even earlier for Exchange and Sharepoint) and even Ubuntu are pushing you away from 32-bit versions for their ...
26
votes
6answers
13k views

Why does x86 represent 32bit when x64 represents 64bit?

My question is why is the shorthand for 32-bit x86 when the shorthand for 64-bit is x64? I am guessing it has something to do with the days of 386s and 486s, when the 32-bit processors all ended in ...
10
votes
5answers
11k views

Should I install 32-bit database or 64-bit database?

(I've read a lot about 64-bit versus 32-bit OS/Apps, but this question is specifically in regards to databases.) I'm trying to understand the pros and cons of 32-bit versus 64-bit databases, and ...
7
votes
7answers
4k views

What are the main benefits of Windows 64-bit over 32-bit for ASP.Net apps?

Besides the advantages of 64-bit memory allocation (> 4 GB - see this question on StackOverflow for why 32-bit +4 GB solutions won't work for me), what other reasons do I have for recommending that we ...
6
votes
3answers
1k views

Should I reinstall my production server from 32 bit to 64 bit if it has 16GB of RAM?

I have a production server with 16GB of RAM that came with a 32bit CentOs installation. The website hosted on this server is increasing its traffic every day and I am having some MySQL trouble so I ...
6
votes
2answers
3k views

How does Windows 2008 R2 run 32-bit applications?

If 32-bit processor support is disabled in Windows Server 2008 R2, how does the operating system run 32-bit programs?
6
votes
4answers
25k views

Can 32-bit print drivers work on 64-bit windows?

I'm reading around and it seems that 32 bit drivers do not work under 64 bit windows. Is this true? since 32-bit applications can run under 64 bit windows it seems ridiculous that 32-bit printer ...
6
votes
2answers
23k views

x64 Windows reports 32GB RAM usable out of 64GB RAM installed - why?

I've got a server with 64GB RAM installed (reported in both the bios and in Windows), but the system information from control panel displays the fact that only 32GB of this is usable. I've only ever ...
5
votes
4answers
2k views

Virtualization: 64-bit or 32-bit?

I'm going to install Ubuntu 10.04 Server in a virtual machine and want run MySQL and Lighttpd on it. Are there any benefits or disadvantages between 64-bit and 32-bit virtualization, except the 4 ...
5
votes
2answers
78 views

Multi-Architectures and Their Binaries

Why is there a /usr/lib and a /usr/lib32 directory but only a /usr/bin and no /usr/bin32 directory on a AMD64 64-bit-install of Ubuntu? If or when Debian/Ubuntu start supporting ...
4
votes
2answers
419 views

static web server: 32 or 64 bits?

For a webserver serving just static files (lighttpd or nginx) which is better, 32 or 64 bits? Which OS is preferable? Centos 5 or Ubuntu 10.04?
4
votes
1answer
2k views

Why is 32-bit-mode required in IIS7.5 for my app?

I have a .net4 web application running in a 64 bits 2008 server. I can only get it to run when I set the app pool to Enable 32-bits application to true. All dlls are compiled for .net4 (verified with ...
3
votes
4answers
15k views

RHEL 6 x64: running 32 bit applications

We develop an application which currently works in 32 bit mode only. It worked fine in RHEL 5 but failed to work in RHEL 6. The reason is RHEL 6 by default is installed with 64 bit libraries only. ...
3
votes
2answers
246 views

Need to move a debian server from i686 to x86_64 architecture

I have a debian server that I need to move from one hosting provider to another. I don't really know how the old server was setup, all I know is that it's running a Ruby on Rails application with a ...
3
votes
3answers
152 views

Move a SQL 2000 32-bit database

Can I move a SQL 2000 32-bit database to a SQL 2005 64-bit database server
3
votes
1answer
436 views

Linux: 64 bit VS 32 bit on server for web-app

I want to choose distribution version of server on VDS\Cloud. I choosing between 32-bit and 64-bit. From one side, server with 64-bit OS faster than same server with 32-bit OS (is it true?). From ...
3
votes
2answers
329 views

32 bit process on 64 bit OS

What is the max RAM a 32 bit process can access in a 64bit OS? It is 2 gigs or full 4 gigs? Is there a way to make it access more maybe by enabling PAE on process level? Thanks.
2
votes
1answer
399 views

32-Bit vs. 64-Bit CentOS Server configuration with 8 GB RAM

Looking at Xeon E3-1230 system with 8 GB DDR3 RAM. I've read (somewhere) that Cent OS 64 Bit has problems and/or that the 32 bit version is "better". Also, I know that with windows you need 64-bit ...
2
votes
1answer
602 views

CentOS 6 on 32bit or 64bit? Ample RAM, Java Stack

I have an ESXi (v4.1 U2) box with 16GB RAM and 8 CPU cores available. The full stack will incorporate 2 CentOS 6 instances: 1) DB Server MySQL 2) Web server Apache httpd load balancer 2X Jetty ...
2
votes
2answers
950 views

Running 32 bit printer drivers on a 64 bit Windows 7 Pro

I just purchased a new workstation for a company network which is Windows 7 Pro 64bit. Unfortunately they have an Imagistics im2520f Copier/Printer that only has 32bit drivers available. Windows 7 ...
2
votes
4answers
1k views

More than 4Gb memory on MS SQL

We have a Database running on MS SQL 2005. We have a bit of a memory problem on that server. We want to up the memory to 8GB but it is running on a Server 2003 R2 standard edition OS. Will it be ...
2
votes
1answer
2k views

Is it possible to mix 32- and 64 bit application pools on IIS6

I have a 64 bit Windows Server 2003 with IIS6, on which I would like to run some 32 bit websites as well as a few websites, that should run 64 bit. I know how to configure my 64 bit IIS6 to run 32 ...
2
votes
2answers
2k views

installing 32 bit libraries on arch linux

I can't seem to find the answer anywhere... So far I figured out that I need to add (uncomment) [multilib] Include = /etc/pacman.d/mirrorlist On /etc/pacman.conf and then run: sudo pacman-key --init ...
2
votes
2answers
301 views

Can 32-bit Windows LiveCD modify the Registry of an Offline 64-bit Windows?

Is it possible to mount the NTFS and registry hives from a 64-bit Windows on a 32-bit Windows Preinstallation Environment (32-bit). Does 64-bit change the file format? Also can x86_64 machines boot ...
2
votes
1answer
1k views

32-bit DLL on SQL Server 2008 x64

Is it possible to run a 32-bit DLL on a SQL Server 2008 x64 server? I need to use the DLL inside a stored procedure. Thanks
2
votes
2answers
121 views

CentOS EPEL install, bitness-independent command

I'm writing a small 'install script' and it requires EPEL on CentOS. The command (repo url) differs according to OS bitness, how do I unify this into one command? References: How to install EPEL I ...
2
votes
2answers
76 views

How to go about migrating from a 32-bit Ubuntu VPS to a 64-bit VPS?

I have a VPS that is running 32-bit Ubuntu server edition. I understand that migrating to 64-bit means reinstalling the OS; how do I do this remotely? Or do I need my host to do it for me?
2
votes
3answers
890 views

Adding Shortcut via GP - Program Files vs Program Files (x86)

So I have a 32 bit MSI package that installs in Program Files on 32 bit machines and Program Files (x86) on 64 bit machines. I am attempting to add a shortcut to this app via GP, but I'm not sure how ...
2
votes
1answer
202 views

Can I export mailbox contents from an Exchange 2007 server if I install Outlook 2010 x64 on the same server?

As per this article, in order to export mailbox contents from Exchange 2007, you need to use a 32-bit computer with the following software installed: Exchange 2007 management tools Outlook 2003 or ...
2
votes
1answer
2k views

Apache SSL on 64-bit Windows (not a valid Win32 application)

I have created a portable (relative paths) Apache installation. It works perfectly on my 32-bit system, but when I try to run it on a 64-bit system, it gives the following error: >httpd -t httpd: ...
2
votes
2answers
3k views

Install 32-bit MySQL client library on a 64-bit CentOS

I'm trying to run a compiled 32-bit binary on a 64-bit CentOS 5.3 (based on RedHat 4.1.2) host. The binary complains about inability to find libmysqlclient.so.15. Such a file exists on the server, but ...
2
votes
1answer
96 views

How can install scripts determine which are the correct equivalents for /usr/lib for 32- and 64-bit libraries?

I have an SDK that must install 32-bit and 64-bit files in the correct places under /usr/lib for a variety of Linux distributions. For example, it appears that for Fedora, /usr/lib64 is the 64bit ...
2
votes
0answers
881 views

Installation of Lotus Notes 9.0.1 32 bit for Linux on a Debian 7.5 “wheezy” 64 bit

I'm trying to install Lotus Notes 9.0.1 32 bit for Linux (IBM has not developed a 64 bit package yet) on a Debian 7.5 "wheezy" 64 bit but I'm running into some issues and would need your help. There ...
2
votes
1answer
2k views

How to install 32-bit libraries using Debian Testing

Question: What is the way to determine, ahead of time and without doing a full install of 64-bit Debian Testing NETINST, when Debian Testing has 32-bit libraries available and fully working and ...
2
votes
2answers
436 views

RPM with RHEL: install 2 version of same package / different arch

I think the title is pretty self explanatory :) Is it possible, under RHEL (v 5) to install 2 instances of the same packages with 32 bit support for one and 64 bits support for the other one? ...
2
votes
1answer
605 views

Unable to add a 64-bit MSI package to a Group Policy Object on Windows Server 2003 (32 bit)

I am trying to remotely install a 32 -bit MSI and a 64-bit MSI, using Group Policies in Windows Server 2003 (32 bit). I've created a distribution point and a Group Policy Object. When I try to ...
1
vote
5answers
2k views

Virtual machine : is it possible to run a 32 bits guest OS on a 64 bits host OS?

I am a software developer, and I need to use old version of Borland/Embarcadero Delphi 7 for one software. The others ones are PHP software. I will have soon a 64 bits PC, running Linux, but I need a ...
1
vote
2answers
3k views

HP DL380 G4 - Cannot install Server 2008 R2 64bit - not compatible

I recently purchased some software which will only run on the 64bit version of Windows, so I need to do a clean install of the 64bit version of Server 2008. When I ran the Intel Process Utility it ...
1
vote
4answers
914 views

Why does a 32-bit server support 32GB RAM?

I just got an old IBM x445 with 4xXeon and 32GB RAM home. I happily put in Win2008R2 DVD but got a bit surprised when it said the system only has 32-bit CPU. A quick Google confirms that. What does a ...
1
vote
4answers
147 views

If kernel type (64/32) is no indication of what bit your distribution is, how do I know what I'm running?

If kernel type (64/32) is no indication of what bit your distribution is, how do I know what I'm running? I'm on Ubuntu, and I just found out, to my surprise, you can use a 64 bit kernel on a 32 bit ...
1
vote
1answer
612 views

32 bit ODBC driver on a 64 bit OS

I have a 64 bit windows server 2008 R2 system. I want to install the Btrieve ODBC driver on this system, but there is only a 32 bit version of Btrieve ODBC available. Is there any way to install this ...
1
vote
3answers
1k views

Linux 2.6 32-bit + BIGMEM versus Linux 2.6 64-bit?

I've been told that 32-bit Linux with a bigmem kernel (when the system has >=4GB RAM) will perform better than 64-bit Linux. I'd love to define "perform better than" for you, but unfortunately the ...
1
vote
2answers
168 views

Downsides to running Windows 2008 64 with less than 4GB of RAM?

Occasionally I need to roll a server that doesn't need 4GB or more of RAM. Is there a downside (performance or otherwise) to just using 64-bit Windows 2008 on everything? This way I'm still in good ...
1
vote
2answers
365 views

Ubuntu — Running 32 bit software on 64 bit server

I'm planning to host a web application on a 64-bit Dell server with 32 GB RAM. I'm planning to put Ubuntu 10.04 LTS there. The problem is, our web app uses a simulator, which could be compiled and run ...
1
vote
3answers
5k views

What is the maximum memory a process (MySQL) can consume on a 32-bit OS?

I have MySQL running on a 32-bit RHEL box. The server itself has 4GB total memory with 2GB allocated to MySQL. I would like to know the max amount of memory I can put in the box and how much of that ...
1
vote
3answers
2k views

Should Windows 7, 32-bit vs 64-bit be installed on various machines?

Windows 7 will be released only 3 days from now. If there are a bunch of machines 1) Quad Core, 4GB machines 2) Core2Duo, 2GB machines 3) HyperThread 3.2GHz, 1GB machines are there pros and cons to ...
1
vote
2answers
1k views

When is it a good idea to chose 32bit instead of 64bit VPS?

Within the next couple of days, I'm going to need two Linux VPS instances (probably Ubuntu 10.04), one running PHP and one for Ruby on Rails. Both are most likely going to use nginx and MySQL and have ...
1
vote
2answers
289 views

Upgrade Windows XP 32-bit to 64-bit using repair (e.g. in-place upgrade)

I have a user with a Mac + VMware Fusion with a 32-bit Windows XP virtual machine. He needs a 64-bit OS for a project he is working on with the development team. It appears that the upgrade process to ...
1
vote
1answer
2k views

Multiple 32bit processes on 64bit IIS - memory limit?

I've got a legacy ASP web application that uses a VB6 DLL. The app is quite memory hungry. I need to run multiple instances of the app on one machine. Now since VB6 DLLs are 32bit only, running in a ...
1
vote
1answer
92 views

Restoring an 64 SQL server 2005 backup to a 32 bit installation

I am under the impression that this cannot be done, but would love to know if it can. And if so, why?