EMC Celerra User Manual

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Celerra Network Server Command Reference Manual
The fs Commands
fs_timefinder
Manages the TimeFinder™/FS functionality for the specified file
system or file system group.
SYNOPSIS
fs_timefinder {<fs_name> |id=<fs_id>}
-Mirror {on |off | refresh [-Force]}
| [-name <name>] -Snapshot [-volume <volume_name>][-option <options>]
| -Restore [-Force] [-option <options>]
Note: TimeFinder/FS is only supported on a Celerra Network Server
attached to a Symmetrix.
DESCRIPTION fs_timefinder creates a copy of a file system or file system group that
can be placed into a mirrored mode with its original file system. The
Symmetrix must already have BCVs configured to the same size as
the volumes on the Celerra Network Server. Once the copy has been
made of the file system, the copy can be mounted on any Data Mover.
OPTIONS -Mirror {on | off | refresh [-Force]}
on places the unmounted file system copy, created using the
-Snapshot option, into mirrored mode with its original file system.
The file system copy is frozen and remains unavailable to users until
mirrored mode is turned off.
The refresh option initiates an immediate -Mirror on then off for the
unmounted file system copy, thereby refreshing the file system copy.
The file system copy should not be mounted read-write when placed
into mirrored mode or when refreshed. If the file system copy is
mounted read-write, the -Force option can be used to force a refresh
if the metavolume is an STD type. The -Force option requires root
command and must be executed using
/nas/sbin/rootfs_timefinder
CAUTION
!
Performing a mirror refresh may be time consuming, relative to the
amount of data that has changed in the file system.
[-name <name>] -Snapshot
Creates a copy of a file system and assigns an optional name to the
file system copy. If a name is not specified, one is assigned by default.

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.