EMC Celerra User Manual

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Celerra Network Server Command Reference Manual
The server Commands
server_sysstat
Displays the operating system statistics for the specified Data
Mover(s).
SYNOPSIS
server_sysstat {<movername> | ALL} [-blockmap]
DESCRIPTION server_sysstat displays the operating system statistics and the status
of blockmap memory for the specified Data Mover(s).
The ALL option executes the command for all of the Data Movers.
OPTIONS No arguments
Displays all operating system statistics.
[-blockmap]
Displays the status of blockmap memory in the Data Mover.
Blockmaps are paged memory used by SnapSure to locate each block
of data comprising the checkpoint. 25 percent of physical RAM on the
Data Mover is reserved for blockmap memory.
EXAMPLE #1 To display all operating system statistics, type:
$ server_sysstat server_2
server_2 :
threads runnable = 6
threads blocked = 1399
threads I/J/Z = 2
memory free(kB) = 2689924
cpu idle_% = 99
Where:
EXAMPLE #2 To display current blockmap memory status, type:
$ server_sysstat server_2 -blockmap
server_2 :
total paged in = 0
total paged out = 1
page in rate = 0
page out rate = 0
block map memory quota = 1048576(KB)
Value Definition
threads runnable threads running as well as the ones waiting for a cpu to become available.
threads blocked threads waiting on either a condition variable or a Sthread Mutex.
threads I/J/Z threads in the following state: IDLE, JOINED, and ZOMBIE.
memory free (kB) the amount of free memory from the RAM that is available to Data Mover.
cpu idle_% idle time of the system averaged across all the processors.

EMC Celerra Specifications

General

Category	Server
Form Factor	Rack-mountable
Operating System	DART (Data Access in Real Time)
Data Deduplication	Yes
Snapshot Support	Yes
Product Family	EMC Celerra
File Systems Supported	NFS, CIFS
Protocols Supported	NFS, CIFS, iSCSI, FC
High Availability	Yes
Replication Support	Yes
Product Type	Network Attached Storage (NAS)

Summary

Preface

Chapter 1: Overview

The Celerra Network Server

Describes the Celerra Network Server as a dedicated file server solution integrated into existing networks.

Control Station

Explains the Control Station's role in managing, configuring, and monitoring Data Movers within the Celerra Network Server.

Command Set Conventions

Details the conventions used for command syntax, synopsis, descriptions, options, and examples in the manual.

Chapter 2: The cel and cs Commands

cel_fs Command

Manages file systems on a remotely-linked Celerra Network Server, including import and list operations.

cs_standby Command

Initiates takeover and failover of a Control Station on a Celerra Network Server with dual Control Stations.

Chapter 3: The fs Commands

fs_ckpt Command

Manages checkpoints using SnapSure functionality, covering create, refresh, and restore operations.

fs_copy Command

Creates complete or differential copies of file systems for replication or backup purposes.

fs_replicate Command

Manages local and remote replication instances, covering start, stop, refresh, and failover operations.

Chapter 4: The nas Commands

nas_checkup Command

Performs system health checks on the Celerra Network Server, reporting problems and required actions.

nas_fs Command

Manages local file systems, covering creation, deletion, extension, listing, and access control management.

nas_server Command

Manages server tables for physical and virtual Data Movers (VDMs), including creation and access control.

nas_storage Command

Controls storage system access and performs management tasks like health checks and synchronization.

nas_quotas Command

Manages quotas for mounted file systems, allowing editing, enabling/disabling, and clearing records.

nas_security Command

Manages security policy settings, including GPO and CHAP security for CIFS servers.

Chapter 5: The server Commands

server_archive Command

Reads and writes file archives, and copies directory hierarchies, supporting various archive formats.

server_checkup Command

Performs sanity checks on Data Mover components and dependencies, reporting errors and warnings.

server_cifs Command

Manages CIFS configuration for Data Movers, including adding, deleting, renaming, and modifying server settings.

server_ifconfig Command

Manages network interface configuration, including creating, deleting, enabling/disabling interfaces, and setting IP addresses.

server_iscsi Command

Manages iSCSI targets and LUNs, performing name service and iSCSI service management.

server_mount Command

Manages file system mounting and mount options for Data Movers, controlling access policies.

server_nfs Command

Manages NFS service, including secure NFS and NFSv4, controlling client access and service status.

server_setup Command

Manages Data Mover type and protocol components, including loading images and starting/stopping services.

server_viruschk Command

Manages virus checker configuration, including display, audit, and update operations.

Appendix A: Using Celerra Command Scripts

Celerra Scripting Guidelines

Lists guidelines for creating Celerra command scripts, covering scheduling, command sequencing, and error handling.

Appendix B: GNU General Public License

Preamble

Explains the intent of the GNU General Public License to guarantee freedom to share and change free software.

Terms and Conditions for Copying, Distribution, and Modification

Details the terms and conditions for copying, distribution, and modification of the Program under the GPL.