Faster performance than having the clients access the attached storage through the host OS rather than a guest OS?
From: Ken Schaefer [mailto:[email protected]] Sent: Sunday, December 21, 2008 6:59 PM To: NT System Admin Issues Subject: RE: Hyper-V and Windows Server 2008 Um - you actually get faster performance (than VHDs) because you remove a layer of virtualisation... For servers requiring the highest possible I/O performance, this is the recommended approach. Cheers Ken From: John Hornbuckle [mailto:[email protected]] Sent: Monday, 22 December 2008 10:07 AM To: NT System Admin Issues Subject: RE: Hyper-V and Windows Server 2008 How significant is the performance hit when using pass-through? From: Ken Schaefer [mailto:[email protected]] Sent: Saturday, December 20, 2008 9:53 PM To: NT System Admin Issues Subject: RE: Hyper-V and Windows Server 2008 Hi. You can do this in two ways - Pass through disks, and direct guest access (via iSCSI). http://blogs.technet.com/josebda/archive/2008/02/14/storage-options-for-windows-server-2008-s-hyper-v.aspx Cheers Ken From: Jon Harris [mailto:[email protected]] Sent: Sunday, 21 December 2008 4:47 AM To: NT System Admin Issues Subject: Re: Hyper-V and Windows Server 2008 I don't know about John but I would have loved the ability to mount a physical drive from a virtual machine. Then I could keep the files in a file server on a physical drive separate from and independent of my virtual machines. Jon On Fri, Dec 19, 2008 at 5:20 PM, Ken Schaefer <[email protected]<mailto:[email protected]>> wrote: Are you trying to mount the SCSI RAID array as a direct access disk in the guest? Or do you just want to create a VHD and mount it within the guest? Cheers Ken From: John Hornbuckle [mailto:[email protected]<mailto:[email protected]>] Sent: Saturday, 20 December 2008 6:45 AM To: NT System Admin Issues Subject: RE: Hyper-V and Windows Server 2008 One exception (and someone please let me know if there's a way around this, because I'm new to VMs in general and Hyper-V in particular)... I have an external RAID storage device attached via SCSI cable. I don't know how to make this device accessible through a Hyper-V guest OS, so I'm having my users access it through the host OS (which means I have to make the host a file server). Is there another alternative in this sort of situation? From: Joseph L. Casale [mailto:[email protected]<mailto:[email protected]>] Sent: Friday, December 19, 2008 12:06 PM To: NT System Admin Issues Subject: RE: Hyper-V and Windows Server 2008 You _can_ do whatever you wish the host, but it's my opinion that it should it be segregated to a manglement network and ran completely vanilla. Whatever you do to the host introduces any potential failure or instability for all the guests. If your host is busy chugging away, it effects all the guests as well. jlc From: Reimer, Mark [mailto:[email protected]<mailto:[email protected]>] Sent: Friday, December 19, 2008 9:54 AM To: NT System Admin Issues Subject: Hyper-V and Windows Server 2008 Hi folks, Quick question that my googling hasn't answered for me. I understand the theory of Hyper-V, and that the first VM is the "parent". My question is: Can/Should the parent be used as a regular VM (file server, web server or whatever I want to do with it), or should it just be the OS? I'm assuming it can/should be a VM (file server, web server whatever), but being the first VM, will also help control the hardware/VM setup etc. As such, the first VM should run Windows Server 2008. Other VM's can run W2K8, but can run other OS's (in my case, I would only use W2K3) as well. Correct? Am I way off base, or is this basically it? Thanks for any advice, and have a great Christmas. Mark ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
