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Optimize Hyper-V for SC Series
25 Dell EMC SC Series: Microsoft Hyper-V Best Practices | CML1009
2.14 Disable automount
To prevent a Hyper-V host server from automatically assigning drive letters to newly mapped volumes,
disable the automount feature, which is enabled by default. Having automount disabled is also beneficial
when recovering a volume using an SC Series snapshot.
Disable the automount feature
To verify or change a server automount configuration, open a command prompt window and run Diskpart.
Use the automount command to verify the current state of automount, and the automount disable
command to disable it.
2.15 Placement of page files
Windows Servers and VMs place the page file on the boot volume by default, and automatically manage page
file and memory settings without user intervention. In most cases, these settings should not be changed
unless, for example, an application vendor provides specific guidance on how to tune the page file and
memory settings to optimize the performance of a specific workload.
With SC Series storage, there can be some advantages to placing a page file on a separate volume from the
perspective of the storage array. The following reasons are probably not sufficiently advantageous by
themselves to justify varying from the defaults, but in cases where a vendor recommends making changes to
optimize a workload, consider the following tips as part of the overall page file strategy.
• Moving the page file to a separate dedicated volume reduces the amount of data that is changing on
the system (boot) volume. This can help reduce the size of SC Storage snapshots of boot-from-SAN
volumes which will conserve space in the disk pool.
• Volumes or virtual hard disks dedicated to page files typically do not require snapshot protection, and
therefore do not need to be replicated to a remote SC Series array for DR protection. This is
especially beneficial in cases where there is limited bandwidth for replication of volumes and
snapshots to other SC Series arrays.
• Since page file data is constantly changing, it benefits from staying in tier 1 for maximum
performance. To prevent Data Progression of page file data to lower tiers, volumes containing only
page files can be assigned a storage profile that keeps the data in tier 1.