How many VMs is too many IYO?

Zellio

macrumors 65816
Original poster
Feb 7, 2012
1,118
433
I ask this as I am receiving Windows ME and Windows 98 se tomorrow..
 

Kashsystems

macrumors 6502
Jul 23, 2012
358
1
The only time there is too many VMs is when your machine can no longer handle it.

On my old 2011 iMac 21.5 i5 I would sometimes run 3-4 VMs with no issues, but I also had enough Ram to handle it.

If your machine has 32gb of ram it is very easy to do.

Now if you are planning to do a lot of cpu intensive among all the VMs at the same time, that is where cpu would be an issue.
 

maflynn

Moderator
Staff member
May 3, 2009
63,835
30,353
Boston
There's no real set number. Use what you can, your system will tell you when its too much as it bogs down.
 

KNNSpeed

macrumors newbie
Jul 24, 2014
14
0
At one point I had MS-DOS/Windows 3.11, Windows 95, and Windows 98 SE all under Parallels on my 2010 MBP.

I say never enough! :p

(But, seriously, whatever system you have could probably handle those 2 simultaneously, no problem. No version of Windows 9x/ME needs more than 1GB RAM max dedicated to it.)
 

James Stark

macrumors newbie
Jul 19, 2014
10
0
Indiana
I'd say never too many --so long as you actually use them. If they aren't being use for.. let's say.. 6 months maybe time to get rid of that image.;)
 

csixty4

macrumors regular
Apr 8, 2010
204
1
Somerville, MA
I do almost all of my web development work in Vagrant instances. Every client gets its own VM to keep things isolated. There's no such thing as too many!
 

SandboxGeneral

Moderator emeritus
Sep 8, 2010
24,949
7,885
Detroit
At the office we're building a whole new virtual environment and I currently have 9 VM's running in VSphere (Vcenter) on a Nexsan with plans to almost double that by the time we're done.

At home, on the iMac, with Vmware Fusion 7 I only have two VM's, Windows 8.1 and Windows 10 (Technical Preview). I do not run them at the same time, only one at a time.
 

MacTCE

macrumors 6502
Dec 20, 2013
474
15
Upstate NY
I have 10 running on my Mac Pro;
Windows 7
Windows 8
Windows 10 Tech Preview
MS Server 2003
MS Server 2008
MS Server 2012
SQL Server 2008
SQL Server 2012
Cisco CM
Cisco Unity

I obviously don't run them all at the same time, but I've had 5 open without an issue.
 

yjchua95

macrumors 604
Apr 23, 2011
6,725
230
GVA, KUL, MEL (current), ZQN
Hmm let's see....

I have:
Windows 98 SE (just for fun) - 128MB RAM
Windows XP Pro SP3 x64 (for nostalgia's sake) - 512MB RAM
Windows Vista Ultimate x64 (for nostalgia's sake as well) - 4GB RAM
Windows 7 Pro x64 - 4GB RAM
Windows 8.1 Pro x64 - 4GB RAM
Windows Embedded 8.1 Industry Pro (for making images for embedded systems) - 4GB RAM
OS X 10.6 Server (for Rosetta) - 2GB RAM
Elementary Luna - 1GB RAM
Ubuntu - 1GB RAM.

All these on a 27" iMac with 32GB of RAM. I only have 4-5 of them running at the same time though.
 

macenied

macrumors 6502a
Aug 20, 2014
636
28
The limit is not how many you have, the limit will be how many you run in parallel. Your computer will tell you that limit.