Dell EMC VxFlex Ready Node 14G User Manual

Tuning considerations................................................................... 112
VxFlex OS system changes........................................................................113
Using the set_performance_parameters utility for MDM and SDS....
113
Caching Updates for VxFlex OS 2.x/3.x........................................114
Read RAM Cache settings for SDS...............................................115
Read Flash Cache settings for SDS.............................................. 116
Jumbo Frames and the potential impact on performance..............117
Optimize Linux...........................................................................................121
Change the GRUB template for Skylake CPUs.............................122
Optimize ESXi........................................................................................... 123
Optimize the SVM.....................................................................................123
Optimizing VM guests............................................................................... 124
I/O scheduler............................................................................... 124
Paravirtual SCSI controller...........................................................125
VxFlex OS Performance Parameters.........................................................126
RAID controller virtual disk settings...........................................................127
Apply Performance Profiles to system components.................................. 128
Managing and Monitoring 129
Managing System Objects 131
CLI basics..................................................................................................132
Using SCLI in non-secure mode....................................................133
Syntax.......................................................................................................133
Getting help with the CLI............................................................. 134
Managing the VxFlex OS system...............................................................135
Extending an existing VxFlex OS system...................................... 135
Cluster operations.....................................................................................135
Adding a standby to the MDM cluster.......................................... 136
Removing a standby from the MDM cluster................................. 136
Extending an MDM cluster........................................................... 137
Switching from 5-node cluster mode to 3-node cluster mode......138
Replacing a Master MDM.............................................................138
Transfer the MDM cluster component using the AMS................. 139
Managing the SDSs and cache.................................................................. 141
Modifying an SDS port during I/O.................................................141
Managing Read Flash cache......................................................... 143
Managing read RAM cache...........................................................143
SDC operations......................................................................................... 144
Updating the SDC driver with IP address changes....................... 144
Detecting new volumes................................................................ 144
Query volumes using drv_cfg....................................................... 145
Query tgt objects using drv_cfg...................................................146
Query GUID using drv_cfg............................................................147
Query MDMs using drv_cfg..........................................................147
Loading a configuration file using drv_cfg....................................148
Adding an MDM using drv_cfg..................................................... 149
Modifying an MDM IP address using drv_cfg...............................150
Permanent Device Loss state....................................................... 151
Managing ESX servers.............................................................................. 152
Modifying parameters on ESXi servers.........................................152
Checking the SDC state on ESX servers...................................... 154
Restarting the AMS service on Linux........................................................ 155
Part 3
Chapter 6
Contents
Dell EMC VxFlex Ready Node AMS User Guide 5

Dell EMC VxFlex Ready Node 14G Specifications

General

Brand	Dell
Model	EMC VxFlex Ready Node 14G
Category	Server
Language	English