This could work. I like local disk storage so I can easily move an ISO library to the hosts. What's outlined is certainly viable. Once the host is booted, it doesn't really rely on local storage in a SAN environment, as the guests reside on the SAN. I have a couple of hosts on local storage, but these are low priority or something I'm testing. Local storage gives you flexibility. I can restore a VM and some data to a host if the SAN were to become unavailable.
On Tue, Apr 3, 2012 at 12:50 PM, David Mazzaccaro < [email protected]> wrote: > I am still researching and meeting w/ vendors.**** > > One thing that has just come up w/ a particular vendor.**** > > They are telling me that they would put in 3 hosts, w/ no hard drives and > that VMware would run off a USB stick???**** > > This sounds pretty cheesy to me… is this common practice?**** > > What are the pros/cons to USB stick vs a pair of mirrored drives on the > hosts?**** > > ** ** > > ** ** > > ** ** > > *From:* Paul Hutchings [mailto:[email protected]] > *Sent:* Thursday, March 15, 2012 10:44 AM > *To:* NT System Admin Issues > *Subject:* RE: New to virtualization**** > > ** ** > > The reality here is that you’re not going to spend $130k on a > virtualisation solution and *not* want to add more VM’s,**** > > ** ** > > Honestly, just add DataCenter from the get-go – you’ll make use of it I > guarantee it.**** > > ** ** > > *From:* Jonathan Link > [mailto:[email protected]<[email protected]>] > > *Sent:* 15 March 2012 14:03 > *To:* NT System Admin Issues > *Subject:* Re: New to virtualization**** > > ** ** > > I admit it was a while back, it may have changed, or my understanding was > incorrect. Or someone told me that and I read it that way. In any event, > I think 12 total servers for his environment may be a bit low... Or it may > not be. With Datacenter licensing, if he loses a host, he can move the > guests to the other machines and do some back of the hand guestimate based > on load balancing not licensing.**** > > > > **** > > On Wed, Mar 14, 2012 at 10:51 PM, Ken Schaefer <[email protected]> > wrote:**** > > No this is incorrect. Check the Microsoft Windows Server licensing guide:* > *** > > > http://download.microsoft.com/download/0/D/9/0D9DDF52-A855-487B-9B74-5A09A9389551/Windows%20Server%20System%20Center%20and%20Forefront%20Pricing%20and%20Licensing%20Guide.pdf > **** > > **** > > You can move individual VOSE licenses between Enterprise Hosts, provided > that no host ends up exceeding the 1 POSE + 4 VOSE limit per enterprise > license. For more than 4 VOSEs on a physical host, you need 2 (or more) > enterprise licenses.**** > > **** > > Check out page 8 on the document above – has this exact example in a > diagram.**** > > **** > > Cheers**** > > Ken**** > > **** > > *From:* Jonathan Link [mailto:[email protected]] > *Sent:* Thursday, 15 March 2012 1:24 AM**** > > > *To:* NT System Admin Issues**** > > *Subject:* Re: New to virtualization**** > > **** > > It's even a more (unenforcebly) stringent than that. If you run 4 VMs on > 3 hosts with enterprise server on each host, you power down two and do a > switch, you're in a licensing violation situation. Technically, you have > to move all 3 from one host to another. So single licensing or Datacenter, > or some oddball combination of single licenses and enterprise > licenses (DAMHIKT).**** > > **** > > Someone correct me if I'm wrong, but that's the way I read the license. > And I prefer to play it straight/conservative. I'll look forward to your > response in about 4-6 hours.**** > > On Wed, Mar 14, 2012 at 11:00 AM, Miller Bonnie L. < > [email protected]> wrote:**** > > And I’m not familiar with the HP hardware, so it’s very possible they > can—I just didn’t see anything about clustering in the original post.**** > > **** > > Why it’s important is one thing MS had told us is if you are planning on > clustering, in an environment like this, you are out of compliance with > licensing as soon as you migrate the 5th VM over to a server that is only > running Enterprise edition (such as to down one of the 3 servers for > patching). That is of course, unless you own separate individual server > licenses for those VMs.**** > > **** > > *From:* Andrew S. Baker [mailto:[email protected]] > *Sent:* Tuesday, March 13, 2012 1:50 PM**** > > > *To:* NT System Admin Issues**** > > *Subject:* Re: New to virtualization**** > > **** > > I have VM hosts at home that can support 6-8 hosts easily.**** > > **** > > At the office, we have hosts that can support 15-20 VMs pretty easily. Of > course, this depends on the workload of the boxes, but for all but the most > extreme workloads, this is probably doable.**** > > **** > > If you build each host to support 30-40% more VMs than normal, then you > can suffer a failure of one of them without great difficulty. > **** > > *ASB***** > > *http://XeeMe.com/AndrewBaker***** > > *Harnessing the Advantages of Technology for the SMB market…***** > > **** > > On Tue, Mar 13, 2012 at 1:59 PM, Miller Bonnie L. < > [email protected]> wrote:**** > > I don’t see any mention of failover clustering. Right now, how much do > you lose if one server is down? How much would you lose if 4 servers were > down instead?**** > > **** > > Just a thought, but you could add another host server, or stick with > three, run datacenter, and build them with enough guts to run 6 VMs each. > That also gives you the ability to spin up test servers, etc, as you > mentioned.**** > > **** > > *From:* David Mazzaccaro [mailto:[email protected]] > *Sent:* Tuesday, March 13, 2012 8:04 AM**** > > > *To:* NT System Admin Issues > *Subject:* New to virtualization**** > > **** > > Hi all,**** > > I am starting to investigate moving our aging network infrastructure into > the virtual world.**** > > ~ 10 servers, 6-7 years old**** > > Windows 2003 domain**** > > Exchange 2003 **** > > Citrix 4.0 farm**** > > ~190 users**** > > After some initial discussions w/ a reseller, here’s what they are > recommending:**** > > (3) DL 380 G7 servers (to host the VMs) ~$18,000**** > > (1) Net App FAS2240 (this is the SAN that would host 12 600GB drives of > storage for the VMs) ~$20,000**** > > VMWare essentials plus kit (VMware software) ~$5200**** > > (3) MS Windows 2008 R2 Enterprise (this would allow the 3 HP servers to > run 4 Windows 2008 VMs each)**** > > I guess the way it would work is that the VMs would reside on the SAN, and the > 3 hosts would call up the SAN to load each VM utilizing the host’s CPU, > RAM, NIC, etc.)… right?**** > > I have meetings scheduled w/ 2 other vendors, but verbally both have > started the conversation along the same path as above.**** > > Being very new to VM, does the above scenario seem to make sense? **** > > It is hard for me to imagine all that traffic going between the SAN and > the host servers w/o creating a huge bottleneck (over gig Ethernet)**** > > Do people recommend virtualizing every server? **** > > Domain controllers? Exchange? Citrix farm (4 server)?**** > > Shouldn’t something be left physical?**** > > Is 7 TB of storage enough (probably only 3 usable after array config)? ** > ** > > Is the net app a decent appliance? $20k sounds cheap to me…**** > > I have done a little more reading, and from what I understand w/ 3 Windows > Enterprise licenses, I would be limiting myself to 12 VMs.**** > > However, if I went w/ 3 Windows Datacenter licenses, for a small increase > in price - I would get unlimited VMs? **** > > Which would allow for actually having a testing environment, and better > patch deployment?**** > > Thx**** > > **** > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~**** > > > ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > > --- > To manage subscriptions click here: > http://lyris.sunbelt-software.com/read/my_forums/ > or send an email to [email protected] > with the body: unsubscribe ntsysadmin**** > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ > ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > > --- > To manage subscriptions click here: > http://lyris.sunbelt-software.com/read/my_forums/ > or send an email to [email protected] > with the body: unsubscribe ntsysadmin**** > > **** > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ > ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > > --- > To manage subscriptions click here: > http://lyris.sunbelt-software.com/read/my_forums/ > or send an email to [email protected] > with the body: unsubscribe ntsysadmin**** > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ > ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > > --- > To manage subscriptions click here: > http://lyris.sunbelt-software.com/read/my_forums/ > or send an email to [email protected] > with the body: unsubscribe ntsysadmin**** > > ** ** > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ > ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > > --- > To manage subscriptions click here: > http://lyris.sunbelt-software.com/read/my_forums/ > or send an email to [email protected] > with the body: unsubscribe ntsysadmin**** > ------------------------------ > > *MIRA Ltd***** > > ** ** > > Watling Street, Nuneaton, Warwickshire, CV10 0TU, England**** > > Registered in England and Wales No. 402570**** > > VAT Registration GB 100 1464 84**** > > ** ** > > The contents of this e-mail are confidential and are solely for the use of > the intended recipient. 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