Dell PowerStore 1000X EMC PowerStore Host Configuration Guide
Dell PowerStore 1000X Manual
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- Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 1
Dell EMC PowerStore Host Configuration Guide 2.0 August 2020 Rev. A01 - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 2
of data and tells you how to avoid the problem. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. © 2020 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 3
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 Post-Configuration Steps...23 Disk - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 4
PowerStore Cluster Disk Device with iSCSI 30 Configuring the PowerStore Cluster Disk Device with iSCSI - Single Network Subnet Support Size 38 Dell EMC AIX ODM Installation...39 Dell EMC AIX ODM Installation Requirements...39 Appendix A: Considerations for Boot from SAN with PowerStore 40 - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 5
to the PowerStore Documentation page at www.dell.com/ powerstoredocs. • Troubleshooting For information about products, software updates, licensing, and service, go to www.dell.com/support and locate the appropriate product support page. • Technical support For technical support and service requests - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 6
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 - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 7
use more than 8 paths per device per host. It is recommended to use 4 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 cluster, it is highly advised to zone the host to as many appliances as - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 8
per host: 8 Recommended number of paths per volume per host: Performance 4 Link speed should be consistent across all paths to Performance the PowerStore cluster per single host or a cluster of hosts. Balance the hosts between the nodes of the appliance to provide a distributed load across all - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 9
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 1000X | EMC PowerStore Host Configuration Guide - Page 10
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: 1. Host 10 Best Practices for Storage Connectivity - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 11
3. FC SAN Switch 4. Node NOTE: Refer to your Fibre Channel switch user manual for implementation instructions. iSCSI SAN Guidelines This section details the best practices for attaching hosts to a PowerStore cluster in a highly-available, resilient and optimal iSCSI SAN. Recommended Configuration - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 12
using NIC Teaming (Link Aggregation), to combine multiple interfaces into a single virtual interface. • In PowerStore only single network subnet is supported for the iSCSI target portals and routing is not supported. • If Jumbo Frames are required for iSCSI traffic, make sure that all ports (servers - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 13
NOTE: Refer to your iSCSI switch user manual for instructions on the implementations. The following diagram describes a simple iSCSI connectivity with a single PowerStore appliance: 1. Host 2. PowerStore Appliance 3. ToR/iSCSI Switch 4. Node The following diagram describes a simple iSCSI - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 14
1. Host 2. PowerStore Appliance 3. ToR/iSCSI Switch 4. Node The following diagram describes a simple iSCSI connectivity with four (4) PowerStore appliances: 1. Host 2. PowerStore Appliance 14 Best Practices for Storage Connectivity - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 15
3. ToR/iSCSI Switch 4. Node 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 Connectivity 15 - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 16
chapter provides guidelines only for configuring ESXi hosts that are connected externally to PowerStore. For configuring an internal ESXi host in PowerStore, refer to the PowerStore Virtualization Guide document. Recommended Configuration Values Summary The following table summarizes all used and - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 17
Virtual Volumes, refer to the PowerStore Virtualization Guide and the Best Practices Guide. Fibre Channel HBA Configuration This Navigator (https://elabnavigator.emc.com) for supported FC HBA models and drivers. • Verify that all HBAs have supported driver, firmware and BIOS versions. • Verify - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 18
to the E-Lab interoperability Navigator (https://elabnavigator.emc.com) for supported NIC/iSCSI HBA models and drivers. 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 - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 19
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 - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 20
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 - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 21
to configure the default pathing policy for newly defined PowerStore volumes to Round 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 This command also sets the - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 22
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 - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 23
PowerStore User Guide that matches the version running on your PowerStore cluster. The Dell supported by vSphere ESXi for presenting volumes is 512 bytes. NOTE: For details on formatting a newly created volume, refer to the PowerStore User Guide that matches the version running on your PowerStore - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 24
Guide in the VMware vSphere documentation. Virtual Disk Provisioning Follow these recommendations for provisioning virtual disks on the PowerStore set to 1 • Guest OS support of UNMAP NOTE: Refer to the corresponding guest OS chapter within this document for instructions on how to efficiently create - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 25
depth • HBA timeout Impact Stability & Performance Specify Windows as the operating Serviceability system for each defined host. Load balancing: Use Round Robin or Least details, refer to OS and HBA documentation. Presenting PowerStore Volumes to the Windows Host Configuring Native Multipathing - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 26
Environment document. ○ For Emulex HBAs, refer to the Dell EMC Host Connectivity with Emulex Fibre Channel and iSCSI HBAs Windows Installation Guide for complete driver installation instructions (https://www Configuration for Microsoft Windows PowerStore supports native multipathing using Microsoft - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 27
from the host via either the GUI or the CLI, refer to the PowerStore User Guide that matches the version running on your PowerStore cluster. Presenting PowerStore Volumes to the Windows Host This topic discusses presenting PowerStore Volumes to the Windows host. When adding host groups and hosts to - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 28
. 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 User Guide that matches the version running on your PowerStore cluster. Creating a File System This topic discusses creating a file system. File system - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 29
"tur" • detect_prio - "yes" • failback - "immediate" • no_path_retry - "3" • rr_min_io_rq - "1" • fast_io_fail_tmo - "15" • max_sectors_kb - "1024" Serviceability Performance iSCSI Configuration: To configure the PowerStore disk device, modify /etc/iscsi/iscsid.conf file: • Set node.session.timeo - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 30
Requisites Refer to the E-Lab Interoperability Navigator (https://elabnavigator.emc.com) for supported NIC/iSCSI HBA models and drivers. Configuring the PowerStore Cluster Disk Device with iSCSI To configure the PowerStore disk device, modify the configuration file with the following parameters. The - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 31
the following command on the Linux host: service iscsi restart NOTE: If a previous iSCSI PowerStore Cluster Disk Device with iSCSI - Single Network Subnet Support This topic describes the issue of single subnet support for iSCSI target portals. In PowerStore, only single network subnet is supported - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 32
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 - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 33
the default path grouping policy to apply to PowerStore volumes • Paths are grouped by priorities assigned will try to detect whether the device supports yes ALUA. If so, the device scsi layer will wait after a problem 15 has been detected on a FC the path devices. Manually raising this value for - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 34
, presenting and managing volumes accessed from the host via either the GUI or the CLI, refer to the PowerStore User Guide that matches the version running on your PowerStore cluster. Presenting PowerStore Cluster Volumes to the Linux Host Specify Linux as the operating system when presenting - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 35
for the first partition of 2048, which is divisible by 16, and thus is correctly assigned. Creating a File System When creating a file system with PowerStore cluster storage, use its default block size, and disable UNMAP during creation. It is recommended to create the file system using its default - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 36
Recommended Configuration Values Summary • Fibre Channel Configuration • Dell EMC AIX ODM Installation Recommended Configuration Values Summary The paths per LUN should be used with an AIX host that is connected to PowerStore. LUN Queue Depth: If I/O throttling is required, the default depth value - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 37
(8) 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 feature for FC devices and details the setting recommendations. AIX supports Fast I/O Failure for Fibre Channel devices after link events in - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 38
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 - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 39
cluster. The minimum ODM and AIX operating system versions that are supported with PowerStore and native MPIO are: DellEMC.AIX.6.2.0.0.tar.Z -> For AIX 7.1, 7.2 and VIOS 3.1.0 To install the Dell EMC fileset: 1. Download the correct Dell EMC ODM fileset version and place it in the /tmp/ODM - Dell PowerStore 1000X | EMC PowerStore Host Configuration Guide - Page 40
. 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
Dell EMC PowerStore
Host Configuration Guide
2.0
August 2020
Rev. A01