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Dell PowerStore 500T | EMC PowerStore Host Configuration Guide - Page 1
Dell EMC PowerStore Host Configuration Guide August 2021 Rev. A07
Dell PowerStore 500T | EMC PowerStore Host Configuration Guide - Page 2
and tells you how to avoid the problem. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. © 2020 - 2021 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may
Dell PowerStore 500T | EMC PowerStore Host Configuration Guide - Page 3
is Enabled on the ESXi Host 23 Setting the Maximum I/O...24 Confirming UNMAP Priority...24 Configuring VMware vSphere with PowerStore Storage in a Multiple Cluster Configuration 24 Multipathing Software Configuration...25 Configuring Native Multipathing...25 Post-Configuration Steps...28 AppsOn
Dell PowerStore 500T | EMC PowerStore Host Configuration Guide - Page 4
PowerStore Cluster Disk Device with iSCSI 37 Configuring the PowerStore Cluster Disk Device with iSCSI - Single Network Subnet Support Fibre Channel Adapter Device Driver Maximum I/O Size 47 Dell EMC AIX ODM Installation...47 Dell EMC AIX ODM Installation Requirements...47 Chapter 7: Host
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57 Multipathing Software Configuration...58 Configuring Native Multipathing Using HP-UX Multipath I/O (MPIO 58 Post-Configuration Steps - Using the PowerStore System 58 Presenting PowerStore Volumes to the HP-UX Host 58 Creating a file system...59 Appendix A: Considerations for Boot from SAN with
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PowerStore Documentation page at https:// www.dell.com/powerstoredocs. ● Troubleshooting For information about products, software updates, licensing, and service, go to https://www.dell.com/support and locate the appropriate product support page. ● Technical support For technical support and service
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for configuring ESXi hosts that are connected externally to PowerStore. For configuring an internal ESXi host in PowerStore X model, refer to the PowerStore Virtualization Guide. For further host connectivity best practices in conjunction to other Dell EMC storage systems, also refer to the E-Lab
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paths. ● Keep a consistent link speed and duplex across all paths to the PowerStore cluster per single host or a cluster of hosts. ● With a multi-appliance Doing so may require the user to manually force a host re-scan to discover that device. For instructions on forcing a host re-scan, refer
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for Fibre Channel Fibre Channel SAN Configuration Limitations Review these limitations when configuring hosts with PowerStore storage using either SCSI Fibre Channel (SCSI-FC) or NVMe over Fibre Channel (NVMe-FC): NOTE: NVMe-FC is supported with PowerStore OS version 2 or later. ● Direct-attach
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on zoning best practices, refer to the Networked Storage Concepts and Protocols techbook: https:// support.emc.com/docu33913_Networked-Storage-Concepts-and-Protocols-TechBook.pdf ● PowerStore supports direct attachment of hosts to the appliances. The following diagram describes a simple Fibre
Dell PowerStore 500T | EMC PowerStore Host Configuration Guide - Page 11
diagram describes a simple Fibre Channel connectivity with two (2) PowerStore appliances: 1. Host 2. PowerStore Appliance 3. FC SAN Switch 4. Node The following diagram describes a simple Fibre Channel connectivity with three (3) PowerStore appliances: Best Practices for Storage Connectivity 11
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1. Host 2. PowerStore Appliance 3. FC SAN Switch 4. Node The following diagram describes a simple Fibre Channel connectivity with four (4) PowerStore appliances: 1. Host 2. PowerStore Appliance 12 Best Practices for Storage Connectivity
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switch user manual for implementation instructions. iSCSI SAN Guidelines This section details the best practices for attaching hosts to a PowerStore cluster in Warning Recommended Recommended With PowerStore OS version 2 (or later), Performance up to 32 network subnets are supported for the iSCSI
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up to 8 network subnets are supported per physical port. With PowerStore OS version 1, only a single network subnet is supported. ● If Jumbo Frames are user manual for instructions on the implementations. The following diagram describes a simple iSCSI connectivity with a single PowerStore appliance:
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ToR/iSCSI Switch 4. Node NOTE: For detailed information on connecting the PowerStore appliance to the ToR/iSCSI switch, refer to the PowerStore Network Planning Guide and the Network Configuration Guide for Dell PowerSwitch Series. The following diagram describes a simple iSCSI connectivity with two
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/iSCSI Switch 4. Node NOTE: For detailed information on connecting the PowerStore appliance to the ToR/iSCSI switch, refer to the PowerStore Network Planning Guide and the Network Configuration Guide for Dell PowerSwitch Series. The following diagram describes a simple iSCSI connectivity with four
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, refer to the PowerStore Network Planning Guide and the Network Configuration Guide for Dell PowerSwitch Series. NOTE: Make sure to connect port 0 of each node to a different iSCSI switch. NOTE: Refer to your iSCSI switch user manual for implementation instructions. Best Practices for Storage
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externally to PowerStore. For configuring an internal ESXi host in PowerStore, refer to the PowerStore Virtualization Guide document. HBA timeout Stability & Performance Specify ESXi as the operating system Serviceability for each defined host. ESXi configuration: VAAI should be enabled,
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the PowerStore Virtualization Guide and the Best Practices Guide. NOTE: As noted in Dell EMC KB article 000126731 (https://www.dell.com/support/ you are using only iSCSI, go to iSCSI HBA Configuration. NOTE: Review Fibre Channel SAN Guidelines before you proceed. Pre-Requisites Before installing
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NOTE: NVMe-FC on an ESXi hosts connected to PowerStore is currently not supported with Raw Device Mapping files (RDMs) and VMware following esxcli command for the Host NQN to be automatically generated according to spec during the ESXi host reboot: esxcli system module parameters set -m vmknvme
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only Fibre Channel with vSphere and PowerStore, go to Fibre Channel HBA Configuration. NOTE: Be sure to review iSCSI SAN Guidelines before you proceed. ESXi hosts. As noted in the iSCSI SAN Guidelines section, PowerStore system supports only a single subnet for all iSCSI communication. Steps 1.
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://docs.vmware.com/en/VMware-vSphere/7.0/ com.vmware.vsphere.storage.doc/GUID-4C19E34E-764C-4069-9D9F-D0F779F2A96C.html Jumbo Frames Configure end-to-end Jumbo Frames for optimal performance. When using iSCSI with ESXi hosts and PowerStore, it is recommended to configure end-to-end Jumbo Frames (MTU
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to storage clusters that supports VAAI. PowerStore clusters fully support VAAI. To ensure optimal performance of PowerStore storage from vSphere, settings for configuring VAAI for PowerStore storage. Confirming that VAAI is Enabled on the ESXi Host Follow these instructions to confirm that VAAI is
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KB article SLN320477 (https://www.dell.com/support/article/sln320477) for further unmaprelated recommendations when doing VMFS (Virtual Machine File System) bootstorm or failover with VMware SRM (Site Recovery Manager) on VMFS datastores from ESXi hosts connected to PowerStore. To set UNMAP priority
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allowed (the default value is 8). For details, refer to VMware vSphere documentation. Multipathing Software Configuration Configuring Native Multipathing PowerStore supports the Native Multipathing Plugin (NMP). This section describes the procedure required for configuring native multipathing for
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Robin with path switching after each I/O packet: esxcli storage nmp satp rule add -c tpgs_on -e "PowerStore" -M PowerStore -P VMW_PSP_RR -O iops=1 -s VMW_SATP_ALUA -t vendor -V DellEMC -o disable_action_OnRetryErrors NOTE: Use the disable_action_OnRetryErrors parameter only with ESXi 6.7 hosts. This
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command to set the NMP Round Robin path switching frequency on PowerStore volumes from the default value (1000 I/O packets) to 1: #esxcli storage nmp psp roundrobin deviceconfig set --device="" --iops=1 -type=iops For example: #esxcli storage nmp psp roundrobin deviceconfig set -device="naa
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create, present, and manage volumes accessed from the host via PowerStore Manager, CLI, or REST API. Refer to the PowerStore Manager Online Help, CLI Reference Guide, or REST API Reference Guide for additional information. The Dell EMC Virtual Storage Integrator (VSI) version 8.4 and later plug-in
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to the corresponding guest OS chapter within this document for instructions on how to efficiently create a file system. NOTE: SCSI-3 Persistent Reservations (SCSI3-PRs) on a virtual disk (VMDK) level is currently not supported with PowerStore storage. Host Configuration for VMware vSphere ESXi 29
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Virtual Machine Guest OS Settings This section details the recommended settings and considerations for virtual machines guest OS. ● LUN Queue Depth - For optimal virtual machine operation, configure the virtual machine guest OS to use the default queue depth of the virtual SCSI controller. For
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host (after file system creation): Impact Stability & Performance Serviceability Performance Performance Severity Recommended Mandatory Warning Recommended Refer to Section For further details, refer to OS and HBA documentation. Presenting PowerStore Volumes to the Windows Host Configuring Native
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HBA Configuration. NOTE: Before you proceed, review Fibre Channel SAN Guidelines. Pre-Requisites This . ○ For Emulex HBAs, refer to Dell EMC Host Connectivity with Emulex Fibre Channel Installation Guide for complete driver installation instructions . Microsoft Windows PowerStore supports native
Dell PowerStore 500T | EMC PowerStore Host Configuration Guide - Page 33
Native Multipathing Using Microsoft Multipath I/O (MPIO) This topic describes configuring native multipathing using Microsoft Multipath I/O (MPIO). For optimal operation with PowerStore storage, configure the Round-Robin (RR) policy or the Least Queue Depth policy for MPIO for devices presented from
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storage. You can adjust the setting while the host is online and connected to the PowerStore cluster with no I/O impact. NOTE: Refer to the PowerStore Configuring Volumes Guide for additional information. Creating a File System This topic discusses creating a file system. File system configuration
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setting: ● LUN and HBA queue depth ● HBA timeout Stability & Performance Recommended Specify Linux as the operating system for Serviceability each defined host. Mandatory Native Multipathing: To configure the PowerStore disk device, modify /etc/multipath.conf file: ● vendor - "DellEMC" ● product
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Configuration. NOTE: Before proceeding, review Fibre Channel SAN Guidelines. Pre-Requisites When attaching a host to PowerStore cluster using Fibre Channel, the elabnavigator.emc.com) for supported Fibre Channel HBA models and drivers. ● Verify all HBAs are at the supported driver, firmware and BIOS
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review the iSCSI SAN Guidelines section. Pre-Requisites Refer to the E-Lab Interoperability Navigator (https://elabnavigator.emc.com) for supported NIC/iSCSI HBA models and drivers. Configuring the PowerStore PowerStore disk device with iSCSI, refer to the specific instructions host: service iscsi
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a single network subnet for the iSCSI portals. In PowerStore OS version 1, only a single network subnet is supported for the iSCSI target portals. By design, on this article to understand what it does and review alternative solutions as explained in https://access.redhat.com/solutions/53031.
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devices section. For additional information, refer to the Importing External Storage to PowerStore Guide document. devices { device { vendor DellEMC product PowerStore path_selector "queue-length 0" path_grouping_policy group_by_prio path_checker tur detect_prio yes failback immediate no_path_retry
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try to detect whether the device yes supports ALUA. If so, the device will automatically scsi layer will wait after a 15 problem has been detected on a FC remote from the path devices. Manually raising this value for the : In PowerStore cluster the maximum I/O size is 1MB. PowerStore does not
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} //other devices} } Configuring Oracle ASM For proper functioning with Linux hosts using Oracle ASM with PowerStore, configure the Oracle ASM settings file. Prerequisites For a PowerStore cluster to function properly with Linux hosts that are using the Oracle ASM volume management software with
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, present, and manage volumes accessed from the host via PowerStore Manager, CLI, or REST API. Refer to the PowerStore Manager Online Help, CLI Reference Guide, or REST API Reference Guide for additional information. Presenting PowerStore Cluster Volumes to the Linux Host Specify Linux as the
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a file system using the mkfs.xfs command - Use the "-K" parameter. For a more efficient data utilization and better performance, use Ext4 file system with PowerStore cluster storage instead of Ext3. For details on converting to Ext4 file system (from either Ext3 or Ext2), refer to https://ext4.wiki
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Configuration Values Summary • Fibre Channel Configuration • Dell EMC AIX ODM Installation Recommended Configuration Values Summary per LUN should be used with an AIX host that is connected to PowerStore. Stability & Performance Mandatory LUN Queue Depth: If I/O throttling is required
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paths per LUN should be used with an AIX host that is connected to PowerStore. If more paths are needed, an RPQ is required. Pre-Requisites Before you the E-Lab Interoperability Navigator (https://elabnavigator.emc.com) for supported FC HBA models and drivers. Queue Depth Follow these
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to link loss between the storage device and switch, by supporting faster failover to alternate paths. Dynamic Tracking This topic describes for non-NPIV configurations). It is recommended to enable dynamic tracking for PowerStore volumes. To enable dynamic tracking for FC devices, change all fscsi
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storage cluster requirements, you must install the correct Dell EMC ODM filesets to support Fibre Channel attachment to the PowerStore cluster. The minimum ODM and AIX operating system versions that are supported with PowerStore and native MPIO are: DellEMC.AIX.6.2.0.1.tar.Z -> For AIX 7.1, 7.2 and
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APPLY SUCCESS SUCCESS 5. Run the following command to install the following filesets to support PowerPath (an RPQ for PowerPath is required for this configuration): installp -ad . EMC.POwerStore.aix.rte EMC.PowerStore.fcp.rte Installation Summary Name Level Part Event Result EMC
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: Topics: • Recommended Configuration Values Summary • Fibre Channel Configuration • Solaris Host Parameter Settings • Post configuration steps - using the PowerStore system Recommended Configuration Values Summary The following table summarizes all used and recommended variables and their values
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HBAs. NOTE: When using Fibre Channel with PowerStore, the FC HBA (Host Bus Adapters) issues for optimal performance. NOTE: Before you proceed, review Fibre Channel SAN Guidelines. Pre-Requisites Before installing (patch), as described on the Oracle support site for each specific FC HBA. ● Refer to
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when using Dell Technologies PowerStore storage. Configuring Solaris native multipathing For a PowerStore cluster to cluster other than PowerStore, the configuration file may include additional devices. NOTE: Currently, PowerStore clusters are only supported with native Solaris multipathing
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etc/driver/drv/scsi_vhci.con /etc/driver/drv/scsi_vhci.conf_ORIG # vi /etc/driver/drv/scsi_vhci.conf Example Below are the entries recommended for PowerStore storage. load-balance="round-robin"; auto-failback="enable"; ddi-forceload = "misc/scsi vhci/scsi vhci f asym sun", "misc/scsi vhci/scsi vhci
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ignore size=256 set zfs:zfs log unmap ignore size=256 Parameter Description set maxphys Sets the maximum size of a single I/O request. For PowerStore it must be set to no more than 1MB. set zfs:zfs_unmap_ignore_size ZFS TRIM settings set ZFS TRIM settings zfs:zfs_log_unmap_ignore_size Value
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queue depth setting Optimal LUN block size in bytes SCSI device command optimization Indicate whether the storage has a nonvolatile cache Value 0x100000 DellEMC PowerStore 64 4096 false true Updating sd.conf configuration file (Solaris 11.x x86 and 11.4 SPARC) About this task The sd.conf host
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the host. You can create, present, and manage volumes accessed from the host via PowerStore Manager, CLI, or REST API. Refer to the PowerStore Manager Online Help, CLI Reference Guide, or REST API Reference Guide for additional information. When adding host groups and hosts to allow Solaris hosts to
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4KB) scsimgr save_attr -a escsi_maxphys=256 Impact Stability & Performance Serviceability Performance Load balancing: Keep the following HP-UX native multipathing further details, refer to OS and HBA documentation. Presenting PowerStore Volumes to the HPUX Host Maximum Transfer Length Configuring
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only FC-SW FCP connections. GigE iSCSI and FC direct connections form HP-UX initiators to PowerStore target ports are not supported. NOTE: Before you proceed, review Fibre Channel SAN Guidelines. Pre-Requisites This section describes the pre-requisites for FC HBA configuration ● Refer to the
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Multipathing Software Configuration for HP-UX PowerStore supports only native multipathing using multipath I/O PowerStore Manager, CLI , or REST API. Refer to the PowerStore Manager Online Help, CLI Reference Guide, or REST API Reference Guide for additional information. Presenting PowerStore
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may require you to properly-align the file system on the PowerStore volume. It is recommended to use specified tools to optimally match UX native volume manager, this recommendation is not applicable as UNMAP is not supported in this case. To disable UNMAP during file system creation (only when
Dell PowerStore 500T | EMC PowerStore Host Configuration Guide - Page 60
SAN configuration. NOTE: The current PowerStore version does not support mapping individual LUNs to host under host group. Follow these guidelines when configuring boot from SAN: ● Before the installation on a PowerStore LUN, the host must have been manually registered on the system and assigned

Section	Page
Dell EMC PowerStore Host Configuration Guide	1
Contents	3
Additional Resources	6
Introduction	7
Purpose	7
Best Practices for Storage Connectivity	8
General SAN Guidelines	8
Recommended Zoning Configurations	8
Using LUN 0 with PowerStore	8
Fibre Channel SAN Guidelines	9
Recommended Configuration Values Summary	9
Fibre Channel SAN Configuration Limitations	9
Minimal Zoning Configuration for Fibre Channel	9
Recommended Zoning Configuration for Fibre Channel	10
iSCSI SAN Guidelines	13
Recommended Configuration Values Summary	13
Minimal Subnetting Configuration for iSCSI	13
Recommended Configuration for iSCSI	14
Host Configuration for VMware vSphere ESXi	18
Chapter Scope	18
Recommended Configuration Values Summary	18
Fibre Channel Configuration	19
Pre-Requisites	19
NVMe over Fibre Channel Configuration on ESXi Hosts	20
Setting the ESXi Host NVMe Qualified Name	20
Setting up NVMe HBAs	20
Setting Up Marvell NVMe HBAs	20
Setting Up LPe3200x NVMe HPA	20
iSCSI Configuration	21
Pre-Requisites	21
Software iSCSI Adapter Configuration	21
Jumbo Frames	22
Delayed ACK	22
Login Timeout	22
No-Op Interval	23
vStorage API for System Integration (VAAI) Settings	23
Confirming that VAAI is Enabled on the ESXi Host	23
Setting the Maximum I/O	24
Confirming UNMAP Priority	24
Configuring VMware vSphere with PowerStore Storage in a Multiple Cluster Configuration	24
Multipathing Software Configuration	25
Configuring Native Multipathing	25
Configuring NMP Round Robin as the Default Pathing Policy for All PowerStore Volumes	26
Configuring NMP Round Robin on a PowerStore Volume Already Presented to the ESXi Host	26
Post-Configuration Steps	28
AppsOn: Virtual Machine Compute and Storage Collocation Rules for PowerStore X Clusters	28
Disk Formatting	28
Presenting PowerStore Volumes to the ESXi Host	29
Creating a File System	29
VMware Paravirtual SCSI Controllers	29
Virtual Disk Provisioning	29
Virtual Machine Guest OS Settings	30
Host Configuration for Microsoft Windows	31
Recommended Configuration Values Summary	31
Fibre Channel Configuration	32
Pre-Requisites	32
iSCSI Configuration	32
Pre-Requisites	32
Multipathing Software Configuration	32
Configuring Native Multipathing Using Microsoft Multipath I/O (MPIO)	33
Enabling MPIO on the Windows Host and Configuring MPIO for PowerStore Volumes Presented to the Host	33
Post-Configuration Steps - Using the PowerStore system	34
Presenting PowerStore Volumes to the Windows Host	34
Creating a File System	34
Host Configuration for Linux	35
Recommended Configuration Values Summary	35
Fibre Channel Configuration	36
Pre-Requisites	36
NVMe-FC Configuration on Linux Hosts	36
Setting Up NVMe HBAs	36
Setting Up Qlogic NVMe HBA	36
Setting Up Emulex NVMe HBA	37
iSCSI Configuration	37
Pre-Requisites	37
Configuring the PowerStore Cluster Disk Device with iSCSI	37
Configuring the PowerStore Cluster Disk Device with iSCSI - Single Network Subnet Support	38
Policy-Based Routing	38
Bonding/Teaming	38
Disabling Reverse Path Filtering	38
Multipathing Software Configuration	39
Configuring Linux Native Multipathing	39
Configuring Device Mapper Multipathing (DM-multipathing) with MVMe-FC	40
Configuring Oracle ASM	41
Post-Configuration Steps - Using the PowerStore system	42
Presenting PowerStore Cluster Volumes to the Linux Host	42
Partition Alignment in Linux	42
Creating a File System	42
Host Configuration for AIX	44
Recommended Configuration Values Summary	44
Fibre Channel Configuration	45
Pre-Requisites	45
Queue Depth	45
Setting the Queue Depth	45
Fast I/O Failure for Fibre Channel Devices	46
Dynamic Tracking	46
Fibre Channel Adapter Device Driver Maximum I/O Size	47
Dell EMC AIX ODM Installation	47
Dell EMC AIX ODM Installation Requirements	47
Host Configuration for Solaris	49
Recommended Configuration Values Summary	49
Fibre Channel Configuration	50
Pre-Requisites	50
Queue Depth	51
Solaris Host Parameter Settings	51
Configuring Solaris native multipathing	51
Enable Solaris native multipathing on Solaris 10 and 11.0-11.4 hosts (SPARC and x86)	51
Updating scsi_vhci.conf configuration file	51
Host storage tuning parameters	52
Updating fp.conf configuration file	52
Updating /etc/system configuration file	53
Updating fcp.conf configuration file	53
Updating ssd.conf configuration file (Solaris 10 and 11.0-11.3 SPARC)	54
Updating sd.conf configuration file (Solaris 11.x x86 and 11.4 SPARC)	54
Post configuration steps - using the PowerStore system	55
Partition alignment in Solaris	55
Host Configuration for HP-UX	56
Recommended Configuration Values Summary	56
Fibre Channel Configuration	57
Pre-Requisites	57
HP-UX Host Parameter Settings	57
Maximum Transfer Length	57
Multipathing Software Configuration	58
Configuring Native Multipathing Using HP-UX Multipath I/O (MPIO)	58
Post-Configuration Steps - Using the PowerStore System	58
Presenting PowerStore Volumes to the HP-UX Host	58
Creating a file system	59
Considerations for Boot from SAN with PowerStore	60

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Dell EMC PowerStore

Host Configuration Guide

August 2021

Rev. A07