A company has a Windows Server 2012 R2 server namedNYC-HOST1 that has the Hyper-V role installed.
The host server hosts two virtual machines named SALES1 and SALES2. NYC-HOST1 uses storage spaces
with tiered storage. The storage spaces contain both solid state disks (SSDs) and 10,000 RPM Serial Attached
SCSI (SAS) disks for .vhdx files. Each virtual machine runs on its own .vhdx file.
You plan to add new virtual machines each month. SALES1 and SALES2 must run at the highest possible
performance at all times.
You need to configure the virtual machines.
What should you do?
A.
Add additional SSDs to the storage space that is occupied by SALES1 and SALES2.
B.
Replace the 10,000 RPM SAS disks with 15,000 RPM SAS disks.
C.
Move the .vhdx files from the storage spaces to individual SAS hard disks.
D.
pin the .vhdx files for SALES1 and SALES2 to the fast tier.
Answer is D
Storage Tiers in “Windows Server 2012 R2” enhances Storage Spaces by combining the best performance attributes of solid-state disks (SSDs) with the best cost:capacity attributes of hard disk drives (HDDs) together. It allows us to create individual Storage Spaces LUNs ( called “Virtual Disks” – not to be confused with Hyper-V “Virtual Hard Disks” or VHDs ) that span SSD and HDD “tiers”. Once a tiered LUN is created, Windows Server 2012 R2 analyzes disk IO requests on-the-fly and keeps the most frequently accessed data blocks located on speedy SSDs while moving less frequently accessed data blocks to HDDs – all transparently to applications and users.
http://blogs.technet.com/b/keithmayer/archive/2013/10/23/step-by-step-build-an-automated-storage-tiers-lab-with-windows-server-2012-r2-and-powershell.aspx
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