Sun Microsystems SUN FIRE X4500 User manual

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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Sun Microsystems, Inc.
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
do
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
Copyright 1993 - 2007 Symantec Corporation, All Rights Reserved.
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.