Dell PowerStore 1200T EMC PowerStore Host Configuration Guide - Page 47

Virtual Machine Guest Operating System Settings, Creating a File System

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● VM hardware version 11 ● EnableBlockDelete set to 1 ● Guest operating system support of UNMAP NOTE: See the corresponding guest operating system chapter within this document for instructions on how to efficiently create a file system. NOTE: For details on SCSI-3 Persistent Reservations (SCSI3-PRs) on a virtual disk (VMDK) support with PowerStore storage, see Dell EMC Knowledge Article 000191117 (PowerStore: SCSI-3 Persistent Reservations Support). Virtual Machine Guest Operating System Settings Follow these recommendations for setting a virtual machines guest operating system. ● LUN Queue Depth - For optimal virtual machine operation, configure the virtual machine guest operating system to use the default queue depth of the virtual SCSI controller. For details on adjusting the guest operating system LUN queue depth, see VMware Knowledge Article 2053145 (Large-scale workloads...). ● RDM volumes in guest operating system - Span RDM volumes, which are used by the virtual machine, across SCSI controllers to prevent a bottleneck on a single SCSI controller. ● RDM volumes in guest operating system used for Microsoft Cluster (MSCS) - ESXi hosts with visibility to RDM volumes, which are used by Microsoft Cluster (MSCS) may take a long time to start or to perform LUN rescan. For the required settings on the RDM volumes, see VMware Knowledge Article 1016106 (ESXi host takes a long time...). Creating a File System It is recommended to create the file system using its default block size. NOTE: File system configuration and management are out of the scope of this document. It is recommended to create the file system using its default block size (using a nondefault block size may lead to unexpected behavior). See your operating system and file system documentation. Host Configuration for VMware vSphere ESXi 47

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●
VM hardware version 11
●
EnableBlockDelete set to 1
●
Guest operating system support of UNMAP
NOTE:
See the corresponding guest operating system chapter within this document for instructions on how to efficiently
create a file system.
NOTE:
For details on SCSI-3 Persistent Reservations (SCSI3-PRs) on a virtual disk (VMDK) support with PowerStore
storage, see
Dell EMC Knowledge Article 000191117 (PowerStore: SCSI-3 Persistent Reservations Support)
.
Virtual Machine Guest Operating System Settings
Follow these recommendations for setting a virtual machines guest operating system.
●
LUN Queue Depth - For optimal virtual machine operation, configure the virtual machine guest operating system to use the
default queue depth of the virtual SCSI controller. For details on adjusting the guest operating system LUN queue depth, see
VMware Knowledge Article 2053145 (Large-scale workloads...)
.
●
RDM volumes in guest operating system - Span RDM volumes, which are used by the virtual machine, across SCSI
controllers to prevent a bottleneck on a single SCSI controller.
●
RDM volumes in guest operating system used for Microsoft Cluster (MSCS) - ESXi hosts with visibility to RDM volumes,
which are used by Microsoft Cluster (MSCS) may take a long time to start or to perform LUN rescan.
For the required settings on the RDM volumes, see
VMware Knowledge Article 1016106 (ESXi host takes a long time...)
.
Creating a File System
It is recommended to create the file system using its default block size.
NOTE:
File system configuration and management are out of the scope of this document.
It is recommended to create the file system using its default block size (using a nondefault block size may lead to unexpected
behavior). See your operating system and file system documentation.
Host Configuration for VMware vSphere ESXi
47