Dell EqualLogic PS6210XS EqualLogic Host Integration Tools for Linux Version 1 - Page 9

Introduction to HIT/Linux, Overview, Terminology

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1 Introduction to HIT/Linux The Dell EqualLogic Host Integration Tools for Linux (HIT/Linux) provide a collection of applications and utilities to simplify the configuration and administration of Dell EqualLogic PS Series storage arrays. This chapter provides an overview of HIT/Linux features and information about what you can expect when installing, configuring, and using this product. Topics: • Overview • Terminology • PS Series Group Network Recommendations Overview Dell EqualLogic Host Integration Tools for Linux (HIT/Linux) provides the following features: • Dell EqualLogic Auto-Snapshot Manager/Linux Edition (ASM/LE)-Creates point-in-time copies of Dell EqualLogic volumes as part of a backup and recovery strategy for your data. From the ASM/LE command-line interface, you can: • Create, list, and manage Smart Copies, collections, and schedules • Mount and unmount Smart Copies • Create and manage group access files to store group names, group IP addresses, optional management IP addresses, user names, and passwords • Remote Setup Wizard Command Line Interface (RSWCLI)-Use the rswcli setup utility to: • Discover and initialize PS Series arrays • Configure and manage access to a PS Series group • Set configuration parameters for Multipath I/O (MPIO) • Manage which subnets are used for MPIO • Dell EqualLogic iSCSI Multipathing-A combination of user and kernel mode binaries that: • Automate iSCSI session management to create and maintain the optimal iSCSI session configuration for high availability and increased performance • Improve I/O performance by intelligently routing I/O directly to the correct PS Series group member, thereby reducing intragroup I/O forwarding • Dell EqualLogic Configuration Utility (eqlconfig)-Lets you interactively configure the components in HIT/Linux, including ASMCLI and MPIO. It is automatically invoked as part of the installation process. • Dell EqualLogic Host Performance and Configuration Tuning Suite (eqltune)-Verifies that an optimal set of tuning parameters are set for a Linux system, to enhance performance and usability • Dell EqualLogic Log Gathering Facility (eqllog)-Collects system logs and information about the current running state of your configuration • Dell EqualLogic Volume Rethinning Facility (eqlvolume)-Manages the available storage on thin-provisioned volumes • Capability to import EqualLogic storage to PowerStore. For more information see Importing External Storage to PowerStore Guide. Terminology The following terminology is used by HIT/Linux: • DM device-A block device created by the Device Mapper that is composed of constituent block devices • DM target-A kernel module that defines how I/O sent to a DM device is mapped to its constituent block devices. Examples include dm-multipath, dm-linear, and dm-switch. • Ethernet interface-A physical network interface. Also called Ethernet port or NIC port • iSCSI interface-An Open-iSCSI concept; a logical interface for creating iSCSI sessions. HIT/Linux creates iSCSI interfaces that map to the physical Ethernet interfaces. • Multipath device-The Device Mapper devices that create high bandwidth, redundant paths by bundling together connections to each volume Introduction to HIT/Linux 9

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Introduction to HIT/Linux
The Dell EqualLogic Host Integration Tools for Linux (HIT/Linux) provide a collection of applications and utilities to simplify the
configuration and administration of Dell EqualLogic PS Series storage arrays. This chapter provides an overview of HIT/Linux features and
information about what you can expect when installing, configuring, and using this product.
Topics:
•
Overview
•
Terminology
•
PS Series Group Network Recommendations
Overview
Dell EqualLogic Host Integration Tools for Linux (HIT/Linux) provides the following features:
•
Dell EqualLogic Auto-Snapshot Manager/Linux Edition (ASM/LE)—Creates point-in-time copies of Dell EqualLogic volumes as part of
a backup and recovery strategy for your data. From the ASM/LE command-line interface, you can:
•
Create, list, and manage Smart Copies, collections, and schedules
•
Mount and unmount Smart Copies
•
Create and manage group access files to store group names, group IP addresses, optional management IP addresses, user names,
and passwords
•
Remote Setup Wizard Command Line Interface (RSWCLI)—Use the rswcli setup utility to:
•
Discover and initialize PS Series arrays
•
Configure and manage access to a PS Series group
•
Set configuration parameters for Multipath I/O (MPIO)
•
Manage which subnets are used for MPIO
•
Dell EqualLogic iSCSI Multipathing—A combination of user and kernel mode binaries that:
•
Automate iSCSI session management to create and maintain the optimal iSCSI session configuration for high availability and
increased performance
•
Improve I/O performance by intelligently routing I/O directly to the correct PS Series group member, thereby reducing intragroup
I/O forwarding
•
Dell EqualLogic Configuration Utility (eqlconfig)—Lets you interactively configure the components in HIT/Linux, including ASMCLI and
MPIO. It is automatically invoked as part of the installation process.
•
Dell EqualLogic Host Performance and Configuration Tuning Suite (eqltune)—Verifies that an optimal set of tuning parameters are set
for a Linux system, to enhance performance and usability
•
Dell EqualLogic Log Gathering Facility (eqllog)—Collects system logs and information about the current running state of your
configuration
•
Dell EqualLogic Volume Rethinning Facility (eqlvolume)—Manages the available storage on thin-provisioned volumes
•
Capability to import EqualLogic storage to PowerStore. For more information see
Importing External Storage to PowerStore Guide
.
Terminology
The following terminology is used by HIT/Linux:
•
DM device—A block device created by the Device Mapper that is composed of constituent block devices
•
DM target—A kernel module that defines how I/O sent to a DM device is mapped to its constituent block devices. Examples include
dm-multipath
,
dm-linear
, and
dm-switch
.
•
Ethernet interface—A physical network interface. Also called Ethernet port or NIC port
•
iSCSI interface—An Open-iSCSI concept; a logical interface for creating iSCSI sessions. HIT/Linux creates iSCSI interfaces that map
to the physical Ethernet interfaces.
•
Multipath device—The Device Mapper devices that create high bandwidth, redundant paths by bundling together connections to
each volume
1
Introduction to HIT/Linux
9