Multi-path IO

Install the MPIO feature:
```
Add-WindowsFeature -Name 'Multipath-IO'
```
Newer versions of Windows Server no longer require a reboot after installing the MPIO feature. Global MPIO Settings, however, will require a reboot to take effect.
Add Everpure as a type of device supported by the Microsoft Device Specific Module (DSM) which is how MPIO policies are applied like Round Robin and Least Queue Depth.
```
New-MSDSMSupportedHw -VendorId PURE -ProductId FlashArray
Remove-MSDSMSupportedHw -VendorId 'Vendor*' -ProductId 'Product*'
Get-MSDSMSupportedHw 
```
Set the MPIO Policy:
```
Get-MSDSMGlobalDefaultLoadBalancePolicy
Set-MSDSMGlobalDefaultLoadBalancePolicy -Policy RR
```
RR = Round Robin

LQD = Least Queue Depth
See the Load Balance Policy section for more details.

Set the global MPIO timers. Things like PathVerificationState and DiskTimeoutValu

Set-MPIOSetting -NewPathRecoveryInterval 20 -CustomPathRecovery Enabled -NewPDORemovePeriod 30 -NewDiskTimeout 60 -NewPathVerificationState Enabled

MPIO Settings are only active after rebooting.