Sun Microsystems SUN FIRE X4500 Manuale utente

Sun Fire X4500 as a Symantec

Netbackup 6.5 Media Server

A Quick Start Guide

Sun Microsystems

December 11, 2007

2007 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, CA 95054 SA

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Table of Contents

Introduction.....................................................................................................................................................3

Configuration .................................................................................................................................................. 4

Overview............................................................................................................................................................... 4

Solaris Configuration.............................................................................................................................................. 5

Zpool Configuration................................................................................................................................................ 5

ZFS Configuration................................................................................................................................................... 6

Netbackup Configuration....................................................................................................................................... 7

Frequently Asked Questions.............................................................................................................................16

Summary....................................................................................................................................................... 18

References..................................................................................................................................................... 19

3 Introduction Sun Microsystems, Inc.

Introduction

The Sun Fire(TM) X4500 server delivers massive storage capacity and remarkable throughput making it an ideal nearline

storage platform for backup and restore applications. Combining the power of the Solaris 10 Operating System with the

data integrity and simplified administration of ZFS, the X4500 becomes an ideal candidate for streamlining and

improving backup/restore operations.

This paper discusses how to quickly configure the X4500 as a Media Server for Symantec Veritas NetBackup.

4 Configuration Sun Microsystems, Inc.

Configuration

Overview

The below diagram shows an example NBU configuration with the X4500 acting as a Media Server. The default NIC

configuration on the X4500 allows up to four physical GigaBit Ethernet connections to be attached. The four

connections can be utilized to back up four separate subnets, or the links can be aggregated together using dladm(1M)

for improved throughput to a single subnet.

The X4500 can also be connected to an optional Tape Library (using FibreChannel or SCSI connections) for Image

Duplication or Archiving purposes. The X4500 can also be used as the primary data cache for Staging operations, with a

Tape Library be utilized for longer term storage and data moved to tape after certain filesystem utilization or time-

based thresholds are reached. It is also possible that the Tape Library is attached to a completely separate Media

Server.

Netbackup Master

Server

X4500 Netbackup

Media Server

Optional Tape Library for

Archiving and Long Term or

Offsite Storage

Image Duplication

Archive

5 Configuration Sun Microsystems, Inc.

Solaris Configuration

The X4500 server used while testing for this paper was installed with Solaris 10 8/07. This is the recommended version

to use with Netbackup as various ZFS improvements were introduced in this build.

The X4500 has 48 500GB SATA drives. The two boot drives (c5t0d0 and c5t4d0) are mirrored using Solaris Volume

Manager. The rest of the drives are available for backup data.

Zpool Configuration

Zpool configuration is a decision that needs to be made based on a number of factors.

•What is the required performance needed? (IOPS/Throughput)

•What is the required data protection level needed? (RAIDZ/RAIDZ2/Mirror)

•What is the required capacity?

After gathering and analyzing the requirements, a configuration that balances the needs of those requirements can be

chosen.

When configuring the system for network backups, the ability of the X4500 to receive data over the network is also a

factor. For example, a 450MB/s backup speed requirement cannot be met solely by using the 4 onboard Gigabit

Network ports. Additional network cards would be needed to meet this requirement.

Care should be taken that a system is not over configured for disk performance, at the expense of space or data

protection, when the entire system (encompassing backup clients and network infrastructure) is not able to send data

at adequate levels. Likewise, a system should not be over configured for space at the expense of performance or data

protection.

For the purposes of this Quick Start Guide, the X4500 was configured one zpool consisting of 8 x 5 disk RAIDZ vdevs.

Additionally, 6 hotspares were configured for reliability. This gives the X4500 sufficient disk performance to handle 300-

350MB/sec of backup traffic over the network.

Example Zpool creation script:

#!/bin/bash

zpool create -f nbupool raidz c0t0d0 c1t0d0 c4t0d0 c6t0d0 c7t0d0 \

raidz c0t1d0 c1t1d0 c4t1d0 c5t1d0 c7t1d0 \

raidz c0t2d0 c1t2d0 c5t2d0 c6t2d0 c7t2d0 \

raidz c0t3d0 c1t3d0 c4t3d0 c6t3d0 c7t3d0 \

raidz c0t4d0 c1t4d0 c4t4d0 c6t4d0 c7t4d0 \

raidz c0t5d0 c4t5d0 c5t5d0 c6t5d0 c7t5d0 \

raidz c0t6d0 c1t6d0 c4t6d0 c5t6d0 c6t6d0 \

raidz c1t7d0 c4t7d0 c5t7d0 c6t7d0 c7t7d0 \

spare c6t1d0 c5t3d0 c4t2d0 c1t5d0 c7t6d0 c0t7d0

6 Configuration Sun Microsystems, Inc.

root@thumper1 # zpool list

NAME SIZE USED AVAIL CAP HEALTH ALTROOT

nbupool 18.1T 58.6G 18.1T 0% ONLINE -

The size listed in the above command is the actual physical space in the pool. This may differ from the actual space

data may occupy as various RAIDZ methods and configurations are not taken into account. See the zpool(1M) man page

for more details.

ZFS Configuration

In this example, the X4500 Media Server is configured to write to Basic Disk Storage Units. Each Storage Unit is created

from a ZFS filesystem mountpoint. The number of filesystems needed will be a implementation by implementation

decision but a few factors should be considered.

•Number of Backup/Recover streams needed

•Number of duplication or stage operations needed

•Number of Tape Drives configured for duplication or stage operations

In this example, 4 backup filesystems are created (/backup1, /backup2, /backup3, /backup4). Testing has shown that

creating a single ZFS filesystem for all backup streams is a bottleneck that limits the throughput to 200-250MB/sec.

Using multiple filesystems in parallel eliminates that bottleneck.

Example ZFS filesytem creation script:

#!/bin/bash

for fs in 1 2 3 4

zfs create -o mountpoint=/backup$fs nbupool/backup$fs

done

root@thumper1 # zfs list

NAME USED AVAIL REFER MOUNTPOINT

nbupool 46.8G 14.2T 39.1K /nbupool

nbupool/backup1 14.8G 14.2T 14.8G /backup1

nbupool/backup2 10.8G 14.2T 10.8G /backup2

nbupool/backup3 5.38G 14.2T 5.38G /backup3

nbupool/backup4 15.8G 14.2T 15.8G /backup4

7 Configuration Sun Microsystems, Inc.

Netbackup Configuration

The X4500 will be configured as a Media Server. In this example, it is assumed that there is a separate Master NBU

server.

The “Netbackup and Media Manager” package must be installed on the X4500. It also will require the appropriate

server licensing.

It is recommended that the Master server's bp.conf file be updated with the new Media server information before

installing the software on the media server. An example is shown below.

The supported installation method is using the install script that comes with the Netbackup Installation media.

root@thumper1 # /nfs/nbu-new/DVD2/install

Symantec Installation Script

Installing NetBackup Server Software

NOTE: To install only NetBackup Client software locally on this machine

or to load additional UNIX client software on this server, insert

the NetBackup UNIX Clients cdrom.

Do you wish to continue? [y,n] (y) y

NetBackup installs to the running root environment, by default.

Are you installing to the running root environment? [y,n] (y) y

Processing package instance <SYMCnetbp> from </nfs/nbu-new/DVD2/solaris_x86>

(... rest of the installation output omitted for brevity...)

After the installation process prompts for the license key and the key is properly entered, the following questions need

to be answered

Would you like to use "thumper1" as the configured

name of the NetBackup server? [y,n] (y) y

Is thumper1 the master server? [y,n] (y) n

What is the fully qualified name of the master server? sol-230

The previously installed master server name should be entered. In this example, the master server name was “sol-230”.

After the package is installed on the X4500. The Master Server EMM database must be updated with the new Media

Server information.

From the Master Server command line:

# /usr/openv/netbackup/bin/admincmd/nbemmcmd -addhost -machinename thumper1 -machinetype media -masterserver sol-230 \

-netbackupversion 6.5 -operatingsystem solaris

NBEMMCMD, Version:6.5

Command completed successfully.

8 Configuration Sun Microsystems, Inc.

Where “machinename” is the name of the X4500 and “masterserver” is the name of the Master Server.

The results of this command can be verified

# nbemmcmd -listhost

NBEMMCMD, Version:6.5

The following hosts were found:

media thumper1

master sol-230

server sol-230

Command completed successfully.

The bp.conf files on both Master and Media servers and any clients should be adjusted for the new Media Server.

On the Master Server

SERVER = sol-230

SERVER = thumper1

CLIENT_NAME = sol-230

EMMSERVER = sol-230

VXDBMS_NB_DATA = /usr/openv/db/data

On the Media Server

SERVER = sol-230

SERVER = thumper1

CLIENT_NAME = thumper1

EMMSERVER = sol-230

Also, any client needing access to the Media Server resources should add “SERVER=<x4500 name>” into it's bp.conf file

as well.

Restart the NetBackup processes on the Master and Media servers to have the changes recognized.

9 Configuration Sun Microsystems, Inc.

Use the NetBackup GUI for the remaining configuration

Verify that the Media Server is recognized via “Host Properties -> Media Servers” Click on the X4500 hostname to ensure

the Media Server is “Connected” The Master Server will already be listed.

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