Yes, over subscribing can be an issue if you don't manage your capacity properly.
It hasn't proved to be an issue in any of the environments where I have been. *ASB **http://XeeMe.com/AndrewBaker* <http://xeeme.com/AndrewBaker>* **Providing Virtual CIO Services (IT Operations & Information Security) for the SMB market…*** On Mon, Jan 7, 2013 at 11:35 AM, Ken Cornetet <ken.corne...@kimball.com>wrote: > Thin provisioning seems risky to me. Seems like you are always in danger > of non-critical virtuals deciding to use more disk space thus exhausting > physical space which would cause critical VMs to pause if they happen to > need more space. > > We tried thin provisioning back in the old VirtualServer days, and I ran > into this problem a few times. > > -----Original Message----- > From: Michael B. Smith [mailto:mich...@smithcons.com] > Sent: Monday, January 07, 2013 10:28 AM > To: NT System Admin Issues > Subject: RE: Time sync > > Because the overhead associated with dynamic disks in Hyper-V v3 is in the > very low single digits. We don't spend any time on this process, thin > provisioning still works seamlessly, and we get on with our lives. > > :) > > -----Original Message----- > From: Ken Cornetet [mailto:ken.corne...@kimball.com] > Sent: Monday, January 7, 2013 10:06 AM > To: NT System Admin Issues > Subject: RE: Time sync > > We are running ESX 5. To conserve SAN storage, we provision virtuals with > the bare minimum needed disk space because it is so easy to extend disks > later (extend the VMDK in VMWare, extend in Windows, done). No down time, > and no wasted disk. We don't have to spend a lot of time trying to > anticipate how big the disks will get and wasting disk if we guess too high. > > In HyperV, you can't extend disks without shutting down the virtual - > seriously. > > I can't for the life of me figure out why MS isn't fixing this instead of > adding silly features like 4TB of guest RAM. And, I also wonder why HyperV > users aren't howling about this. > > -----Original Message----- > From: Michael Leone [mailto:oozerd...@gmail.com] > Sent: Monday, January 07, 2013 9:43 AM > To: NT System Admin Issues > Subject: Re: Time sync > > On Mon, Jan 7, 2013 at 8:31 AM, Ken Cornetet <ken.corne...@kimball.com> > wrote: > > Lol, how many times do you need 64 vCPUs or 4TB of guest Ram versus > > needing to extend a disk? > > I run VMware ESXi 5.0, and I know I have had to extend a disk any number > of times. And Win2008 makes extending the boot disk so much easier, too. > > My largest VM has 16G of RAM, and I was even leery of that. And I have > 6 hosts with 512G RAM each ... > > *ASB* *http://XeeMe.com/AndrewBaker* <http://xeeme.com/AndrewBaker>** *Providing Expert Technology Consulting Services for the SMB market…* ~ 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 listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe ntsysadmin
