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Considerations for Boot from SAN with PowerStore

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A Considerations for Boot from SAN with PowerStore This appendix provides considerations for configuring boot from SAN with PowerStore. Topics: • Consideration for Boot from SAN with PowerStore Consideration for Boot from SAN with PowerStore NOTE: Refer to your operating system documentation for general boot from SAN configuration. NOTE: When using the PowerStore storage array as a boot disk, Dell EMC recommends shutting down the host server during any maintenance procedures to the connected PowerStore appliance, that may render the boot disk unavailable to the host. Array service/upgrade procedures, such as online microcode upgrades and/or configuration changes may crash a system booting from the storage array. Follow these guidelines when configuring boot from SAN: • Prior to the installation on a PowerStore LUN, the host must have been manually registered on the array and assigned to a Storage Group. ○ At least one LUN must be bound to the host's Volume Group and owned by the node connected to the HBA being used for the fabric boot. ○ The lowest-numbered path to the boot LUN must be the active path. • It is recommended that the boot LUN be assigned Host LUN ID 1. During the installation procedure, it is recommended that only one LUN be assigned to the Volume Group for ease of use. ○ Once the installation has completed, additional LUNs may be added to the Volume Group. 40 Considerations for Boot from SAN with PowerStore

Section	Page
Dell EMC PowerStore Host Configuration Guide	3
Additional Resources	5
Introduction	6
Purpose	6
Best Practices for Storage Connectivity	7
General SAN Guidelines	7
Recommended Zoning Configurations	7
Using LUN 0 with PowerStore	7
Fibre Channel SAN Guidelines	7
Recommended Configuration Values Summary	7
Minimal Zoning Configuration for Fibre Channel	8
Recommended Zoning Configuration for Fibre Channel	8
iSCSI SAN Guidelines	11
Recommended Configuration Values Summary	11
Minimal Subnetting Configuration for iSCSI	12
Recommended Configuration for iSCSI	12
Host Configuration for VMware vSphere ESXi	16
Chapter Scope	16
Recommended Configuration Values Summary	16
Fibre Channel HBA Configuration	17
Pre-Requisites	17
iSCSI Configuration	17
Pre-Requisites	18
Jumbo Frames	18
Delayed ACK	18
Login Timeout	18
vStorage API for Array Integration (VAAI) Settings	19
Confirming that VAAI is Enabled on the ESXi Host	19
Setting the Maximum I/O	19
Confirming UNMAP Priority	19
Configuring VMware vSphere with PowerStore Storage in a Multiple Array Configuration	20
Multipathing Software Configuration	20
Configuring Native Multipathing	20
Configuring NMP Round Robin as the Default Pathing Policy for All PowerStore Volumes	21
Configuring NMP Round Robin on a PowerStore Volume Already Presented to the ESXi Host	21
Post-Configuration Steps	23
Disk Formatting	23
Presenting PowerStore Volumes to the ESXi Host	23
Creating a File System	23
VMware Paravirtual SCSI Controllers	23
Virtual Disk Provisioning	24
Virtual Machine Guest OS Settings	24
Host Configuration for Microsoft Windows	25
Recommended Configuration Values Summary	25
Fibre Channel HBA Configuration	26
Pre-Requisites	26
iSCSI Configuration	26
Pre-Requisites	26
Multipathing Software Configuration	26
Configuring Native Multipathing Using Microsoft Multipath I/O (MPIO)	26
Enabling MPIO on the Windows Host and Configuring MPIO for PowerStore Volumes Presented to the Host	27
Post-Configuration Steps - Using the PowerStore Storage	27
Presenting PowerStore Volumes to the Windows Host	27
Creating a File System	28
Host Configuration for Linux	29
Recommended Configuration Values Summary	29
Fibre Channel Configuration	30
Pre-Requisites	30
iSCSI Configuration	30
Pre-Requisites	30
Configuring the PowerStore Cluster Disk Device with iSCSI	30
Configuring the PowerStore Cluster Disk Device with iSCSI - Single Network Subnet Support	31
Policy-Based Routing	31
Bonding/Teaming	31
Disabling Reverse Path Filtering	32
Multipathing Software Configuration	32
Configuring Linux Native Multipathing	32
Configuring Oracle ASM	34
Post-Configuration Steps - Using the PowerStore Cluster	34
Presenting PowerStore Cluster Volumes to the Linux Host	34
Partition Alignment in Linux	35
Creating a File System	35
Host Configuration for AIX	36
Recommended Configuration Values Summary	36
Fibre Channel Configuration	37
Pre-Requisites	37
Queue Depth	37
Setting the Queue Depth	37
Fast I/O Failure for Fibre Channel Devices	37
Dynamic Tracking	38
Fibre Channel Adapter Device Driver Maximum I/O Size	38
Dell EMC AIX ODM Installation	39
Dell EMC AIX ODM Installation Requirements	39
Considerations for Boot from SAN with PowerStore	40

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Considerations for Boot from SAN with

PowerStore

This appendix provides considerations for configuring boot from SAN with PowerStore.

Topics:

•

Consideration for Boot from SAN with PowerStore

NOTE:

Refer to your operating system documentation for general boot from SAN configuration.

NOTE:

When using the PowerStore storage array as a boot disk, Dell EMC recommends shutting down the host server

during any maintenance procedures to the connected PowerStore appliance, that may render the boot disk unavailable

to the host. Array service/upgrade procedures, such as online microcode upgrades and/or configuration changes may

crash a system booting from the storage array.

Follow these guidelines when configuring boot from SAN:

•

Prior to the installation on a PowerStore LUN, the host must have been manually registered on the array and assigned to a Storage

Group.

○

At least one LUN must be bound to the host's Volume Group and owned by the node connected to the HBA being used for the

fabric boot.

○

The lowest-numbered path to the boot LUN must be the active path.

•

It is recommended that the boot LUN be assigned Host LUN ID 1. During the installation procedure, it is recommended that only one

LUN be assigned to the Volume Group for ease of use.

○

Once the installation has completed, additional LUNs may be added to the Volume Group.

Considerations for Boot from SAN with PowerStore