Posts made by i3

@scottalanmiller Sorry, I originally used the upload file, I didn't see the upload image next to it. I did not have permission to upload the file but the image worked ok. Thanks.

Has anyone ran into an issue on a Hyper-V host when trying to connect to a vm it is running from Hyper-V Manager?

This is a brand new Server 2012 R2 fully updated. The vm is also a 2012R2 server, fully updated with integration services installed. The host has two NIC's, one is dedicated to the host, and the other dedicated to the Virtual Network for the vm. When I try to connect to the vm from Hypver-V manager by right clicking the vm and selecting Connect, it initially connects fine and I can control the vm without issue, after about 10-15 seconds the screen blacks out and displays "Video remoting was disconnected unexpectedly" but then reconnects right away. However after it reconnects, I loose some mouse functionality.

I have restarted the host many times
Created a fresh new vm
Re-installed Hyper-v role

@scottalanmiller said in RAID recommendation for Hyper-V host:

@JaredBusch said in RAID recommendation for Hyper-V host:

@i3 you do not install server 2012 r2 onto the hardware. You install Hyper-V Server 2012 R2

This is very important.

Besides the licensing aspect, is it important for performance reasons? So the host can dedicate as as many resources to its vm's as possible?

Thank you for all the input. I will try to answer as many as the questions as I can.

@wrx7m said in RAID recommendation for Hyper-V host:

What server are you going to use as your host?

Server 2012r2

@scottalanmiller said in RAID recommendation for Hyper-V host:

@i3 said in RAID recommendation for Hyper-V host:

My thoughts were to put the virtual machines OS' on the two drive raid 1 array and the data drives for both our ERP and file server on the second array.

Yup, that's fine. It would be better to have all six drives in a single array not in split arrays, but the split arrays aren't dangerous here, just not as good speed or capacity as merging them all into a single array. A single array would be better all around, no downsides.

What type of RAID would be best in this scenario?

@Dashrender said in RAID recommendation for Hyper-V host:

@i3 said in RAID recommendation for Hyper-V host:

We are looking to purchase a Hyper-V host to consolidate a few of our physical servers. The two main servers would be our file server and an ERP system. The ERP system is supported on Hyper-V, however their recommended RAID is as follows:
Two drive Raid 1 for the OS
min. 4 drive Raid 1+0 for the data array (15k SAS)

Our ERP data size is around 400GB and our file server data size is around 700GB.

My thoughts were to put the virtual machines OS' on the two drive raid 1 array and the data drives for both our ERP and file server on the second array. At are current data usage, (4) 600GB 15k SAS drives would not be leaving us much more room for growth.
Should I add more drives to the second array or create a third array with less expensive drives since our file server doesn't require 15k drives.

Thanks,
G

Do you know your IOPs usage? What is the drive array configuration of your ERP currently? We can do some real rough calculations based on that (type of drive, RPM, number of drives in each array, etc).

I do not have a current IOP usage. The current config is a standalone server with two split arrays. OS is on a RAID 1 with two 15k drives; Data is on a RAID 1+0 with 4 15k drives. The only data I have currently is below. I know it may not be the best indicator but it is all I have at this point without collecting more data.
Read Queue length: Spikes to 2/3 during peak usage hours otherwise at 0
Write queue length: Spikes to just under 1 during peak usage hours (same as read) otherwise at 0
Disk Busy Time%: Spikes between 80-100% during peak hours (same as above) otherwise at 0
I will try to get actual IOP usage today.

@Dashrender said in RAID recommendation for Hyper-V host:

Duh, you're right, my bad.

Though the OP did voice concern about not having any left over storage... So your second solution would solve that.

The idea is to have left over storage for future growth.

Thanks again for all of your input.

We are looking to purchase a Hyper-V host to consolidate a few of our physical servers. The two main servers would be our file server and an ERP system. The ERP system is supported on Hyper-V, however their recommended RAID is as follows:
Two drive Raid 1 for the OS
min. 4 drive Raid 1+0 for the data array (15k SAS)

Our ERP data size is around 400GB and our file server data size is around 700GB.

My thoughts were to put the virtual machines OS' on the two drive raid 1 array and the data drives for both our ERP and file server on the second array. At are current data usage, (4) 600GB 15k SAS drives would not be leaving us much more room for growth.
Should I add more drives to the second array or create a third array with less expensive drives since our file server doesn't require 15k drives.

Thanks,
G