Avatar of Castlewood
Castlewood

asked on 

Why do we want to connect hyper-v vm to a physical hard drive?

I'm new to this job.
We have a file server with all network shared drives. That server is a vm in a single hyper-v host with cluster. And the storage is local -- no SAN, etc.
I noticed this vm has two hard drives connected:
1. IDE Controller 0 : hard drive servername.vhdx
2. ScSI Controller:   Hard Drive: Physical drive Disk 6 7448.00 GB Bus 0 Lun 1 Target 0

Can you tell me if there is specific reason we want to connect to the physical hard drive instead of using virtual drives?
Hyper-V

Avatar of undefined
Last Comment
Ross Alas
Avatar of Dan Lutey
Dan Lutey

It was maybe added for more additional hard drive space. Is your local data store almost out of space? At the time it could of been the cheapest solution without buying a NAS or SAN.
Avatar of Philip Elder
Philip Elder
Flag of Canada image

"single hyper-v host with cluster". That doesn't really make any sense?

Is the host standalone or a node in a Hyper-V cluster?

The 7TB drive is connected via USB and is being passed through to the guest VM?
Avatar of Ross Alas
Ross Alas

I'm not sure what version of Hyper-V you have but what you describe is called a pass-through disk.

If it's prior to 2012, VHDs had a limit of 2TB and you have almost 7.5 TB on  that which may be why.

In addition pass-through disks before had higher performance than virtual disks. Perhaps, it's to give the file server exclusive use of the hard disk.
Avatar of Castlewood
Castlewood

ASKER

"with cluster" is a type. Sorry, should be "without cluster"
Ross, we are on 2012 R2 Hyper-V so 2T limit should not be the reason why we want to use 7.5T on pass-through. Since that particular vm is for network shared drives/files by whole company I guess could it be because pass-through to a physical hd is more flexible, speedy, and allowed bigger capacity??

Another question is, once that particular physical drive is used by a vm via pass-through, that drive can NOT be available as pass-through to other vm, correct?
ASKER CERTIFIED SOLUTION
Avatar of Philip Elder
Philip Elder
Flag of Canada image

Blurred text
THIS SOLUTION IS ONLY AVAILABLE TO MEMBERS.
View this solution by signing up for a free trial.
Members can start a 7-Day free trial and enjoy unlimited access to the platform.
See Pricing Options
Start Free Trial
SOLUTION
Avatar of Ross Alas
Ross Alas

Blurred text
THIS SOLUTION IS ONLY AVAILABLE TO MEMBERS.
View this solution by signing up for a free trial.
Members can start a 7-Day free trial and enjoy unlimited access to the platform.
Hyper-V
Hyper-V

Hyper-V is a native hypervisor; it can create virtual machines on x86-64 systems and supersedes Windows Virtual PC as the hardware virtualization component of the client editions of Windows NT. A server computer running Hyper-V can be configured to expose individual virtual machines to one or more networks. Hyper-V Server supports remote access via Remote Desktop Connection. Administration and configuration of the host OS and the guest virtual machines is generally done over the network.

5K
Questions
--
Followers
--
Top Experts
Get a personalized solution from industry experts
Ask the experts
Read over 600 more reviews

TRUSTED BY

IBM logoIntel logoMicrosoft logoUbisoft logoSAP logo
Qualcomm logoCitrix Systems logoWorkday logoErnst & Young logo
High performer badgeUsers love us badge
LinkedIn logoFacebook logoX logoInstagram logoTikTok logoYouTube logo