HP J3278B - SureStore CD-ROM Server/Tower 7 NAS... Service manual

Using This Guide
Click on a topic in the left-hand pane to view information about the topic. For
example, click on Product Overview for a detailed description of HP SureStore
AutoBackup.
Use the Index of Topics page to search for a particular topic.
What Does the Administrator
Do?
The administrator initializes the system, defines backup settings as appropriate, and
monitors backup status for all protected computers.
In the event of disk failure on a protected computer, the administrator can create a
disaster recovery CD-ROM for the client (the user of the protected computer) from
Administrator's Guide - Home Page
file:///D|/ADMIN_~1/eng/admin/home.htm (1 of 3) [5/3/2000 3:31:45 PM]

the HP SureStore AutoBackup appliance.
If you have purchased the optional HP SureStore Tape drive, the administrator is also
responsible for backing up the appliance to tape for offsite storage. In the event of
appliance failure (for example due to fire, earthquake or hardware failure), the
administrator can then recover the whole system using new hardware.
Register Your HP SureStore
Autobackup
If you have not yet registered your product, please take a few minutes to do so now at
http://www.hp.com/autobackupreg. This will give you the opportunity to receive
up-to-date information about our products, solutions and services.
Privacy Statement
HP and its subsidaries are committed to respecting your privacy. If you would like
more information about HP's privacy policy, please visit
http://www.hp.com/ahp/privacy/privacy.htm.
Notice
The information contained in this document is subject to change without notice.
Hewlett-Packard makes no warranty of any kind with regard to the material,
including, but not limited to, the implied warranties of merchantability and
fitness for a particular purpose.
Hewlett-Packard shall not be liable for errors contained herein or direct, indirect,
special, incidental or consequential damages in connection with the furnishing,
performance, or use of this document.
This document contains proprietary information which is protected by copyright. All
rights reserved. No part of this document may be photocopied, reproduced or
translated to another language without the prior written consent of Hewlett-Packard.
Copyright
Copyright 1999-2000 Hewlett-Packard. All rights reserved.
Previo client backup software copyright 1998-2000 Stac Software, Inc. All rights
reserved. Includes one or more U.S. or foreign patents 4701745, 5016009, 5126739,
5146221, 5414425, 5463390, 5506580, 5532694, 5778395, 5907672, GB2172127,
Administrator's Guide - Home Page
file:///D|/ADMIN_~1/eng/admin/home.htm (2 of 3) [5/3/2000 3:31:45 PM]

B904359, 3606869. Other patents pending.
Windows and Windows NT are U.S. registered trademarks of Microsoft Corp.
Revision History
Edition Date Comments
1.0 February 2000 English only version
Administrator's Guide - Home Page
file:///D|/ADMIN_~1/eng/admin/home.htm (3 of 3) [5/3/2000 3:31:45 PM]

Product Overview
HP SureStore AutoBackup provides a complete automated solution for backing up
data held on desktop and mobile PC hard disks that are connected across the network
to the HP SureStore AutoBackup appliance.
HP SureStore AutoBackup consists of a customized server (or appliance) with
internal HP SureStore CD-Writer and customized backup and restore software. It is
designed to attach to an existing LAN in small to medium size companies or
workgroups, so that users (or clients) on desktop PCs or remote PCs can
automatically back up data from their local hard disks across the network to the HP
SureStore AutoBackup appliance.
Note: The modems for remote dial-up must connect to an NT server or workstation.
The AutoBackup backup and restore processes are completely unobtrusive and are
carried out while the user is online and working with the desktop or mobile PC.
Overview Of The Product
file:///D|/ADMIN_~1/eng/admin/overview.htm (1 of 2) [5/3/2000 3:31:50 PM]

Additional Appliance Disaster
Recovery Protection
HP SureStore AutoBackup also supports connection to an optional, external HP
SureStore tape drive, as shown on the above illustration. This allows backup of the
appliance itself. Hewlett-Packard strongly recommends this feature to protect your
data from disasters such as fire, earthquake and data critical hardware failure.
Overview Of The Product
file:///D|/ADMIN_~1/eng/admin/overview.htm (2 of 2) [5/3/2000 3:31:50 PM]

Product Overview
What Is HP SureStore
AutoBackup?
HP SureStore AutoBackup provides automatic backup of data held on the local hard
disks of PCs connected to a network. The PCs protected by HP SureStore
AutoBackup, also called clients, may have either fixed or remote access to the
network.
Administrators access HP SureStore AutoBackup via a web-based console for
normal administration tasks. They can also download an Advanced Administration
console. Users (or clients) install the HP SureStore AutoBackup Agent software via
their web browser, and can then run the HP SureStore AutoBackup Agent from their
PCs.
Backup Strategy
Typically, the strategy is to create a full daily backup of the entire data on the local
hard disk (the C: drive and any additional partitioned drives), where the backup is set
to run automatically in accordance with a defined schedule. Although the first
backup after installation may take a little time to run because it backs up all the data,
subsequent daily backups will take just a few minutes because it only writes changed
data to the appliance. When running, the automatic backup is transparent to the user,
who can continue working on the PC.
What Is The Product?
file:///D|/ADMIN_~1/eng/admin/whatis.htm (1 of 3) [5/3/2000 3:31:54 PM]

Once the data has been backed up, file restore is a simple drag and drop operation
from Windows Explorer - with clients only ever able to access their own data on the
server. This significantly simplifies the ability to restore backed up files, compared
with magnetic tape, and allows restores to be carried out without IT department
involvement.
What Is The Product?
file:///D|/ADMIN_~1/eng/admin/whatis.htm (2 of 3) [5/3/2000 3:31:54 PM]

In the event of a client disaster, the administrator can create a disaster recovery
CD-ROM (and boot floppy. if required), so that the user can reset their connection to
HP SureStore AutoBackup and restore their data once their hardware has been
repaired or replaced.
Use for Backup - Not as Archive
It must be recognized that HP SureStore AutoBackup is designed for relatively
short-term file restore rather than long-term archiving. Although it allows different
versions of the same file to be restored according to backup date, the earliest versions
of a file are overwritten after a specified time period. Any files that are deleted on the
client's PC will also be deleted on the appliance after a specified time. See Retention
Limit for further details.
What Is The Product?
file:///D|/ADMIN_~1/eng/admin/whatis.htm (3 of 3) [5/3/2000 3:31:54 PM]

Product Overview
Why Use HP SureStore
AutoBackup?
Most companies have a system where individual PCs (clients) are linked together on
a network so as to provide shared resources such as printers. Clients also usually
have access to a shared network drive and are instructed to save all their important
files to the network drive, which will be backed up at regular intervals by the IT
department, for example to magnetic tape. If a client needs to restore files, they must
request the IT Administrator to locate the backup tape and restore the relevant file(s)
back to the network drive.
In practice many users will work on and store important files, especially "work in
progress", on their hard disk. These files are only backed up if the user regularly
copies them to the network or regularly uses some form of backup directly at their
individual PC, such as floppy disk, CD-ROM, magnetic tape.
Advantages of HP SureStore
AutoBackup
Backups always happen
Backs up local hard disks automatically and very quickly
Requires no user intervention and is completely transparent to user
Greatly minimizes the risk to a company of losing valuable data
Allows quick and simple file restore without IT involvement
Why Use The Product?
file:///D|/ADMIN_~1/eng/admin/whyuse.htm (1 of 2) [5/3/2000 3:31:57 PM]

Without HP SureStore
AutoBackup
Backup of the local hard disk is solely the responsibility of the user, is
time-consuming and is not always straightforward.
A company has very limited control over whether potentially important files
are actually backed up.
If the connection is made via a remote dial-up modem, the transfer time can
be so slow that users of laptops or mobile PCs will postpone backing up their
local hard disk.
Because of the nature of mobile PCs, the data is also at greater risk to loss,
theft or damage compared to desktop PCs, and shares the same risk of disk
failure, viruses, Operating System (OS) corruption, and so on.
Even in cases where it is certain that all users are working from the network
drives, a company is potentially wasting resources. Typically, new PCs have
at least 4 GB hard disks as standard. If these disks are only used for OS and
applications programs and no data, there is potentially a very large storage
capacity across the company that is not used.
Why Use The Product?
file:///D|/ADMIN_~1/eng/admin/whyuse.htm (2 of 2) [5/3/2000 3:31:57 PM]

Product Overview
How Does AutoBackup Work?
This section describes the following five factors, which are fundamental to the way
that backup is implemented on HP SureStore AutoBackup.
Baseline and incremental backups
Use of a SQL database
Redundant file elimination
Compression
Load balancing
Baseline and Incremental
Backups
When clients carry out the first backup operation, they carry out a "baseline" backup,
which writes the full amount of data to the appliance hard disk. Subsequent backups
only write the actual portions of individual files that have changed since the last
backup. So, although a full baseline backup may take 40 minutes or so, subsequent
backups should only take a few minutes. This is termed block-level incremental
backups.
This approach has two major advantages over magnetic tape and standard Explorer
copy file actions. It keeps network traffic and storage space requirements low and
allows versioning. Clients can restore the latest or an earlier version of a particular
file according to backup date.
Note: As HP SureStore AutoBackup is designed for relatively short-term file restore
rather than long-term archiving, earlier versions of a file are not kept indefinitely, but
are overwritten after a specified retention period (normally one month). Any files
that are deleted on the client's PC will also be deleted on the appliance after a
specified time. See Retention Limit for further details.
How Does It Work?
file:///D|/ADMIN_~1/eng/admin/how.htm (1 of 3) [5/3/2000 3:31:59 PM]

SQL Database
The system uses an integrated SQL database to track baseline files and subsequent
versions. It keeps an index containing the compressed file details (name, directory,
date/time stamps and size) of all backed up files on the appliance.
Redundant File Elimination
The use of a database also makes it possible to identify files that have already been
backed up from the networked clients and have not been changed. This is called
Redundant File Elimination, which is a significant factor in reducing the amount of
storage space required for backup. For example, if the same version of an application
(such as the client PC's operating system or a word processing program) is run on
multiple clients on the network, the common application files are only backed up
once.
The Administrator (and sometimes client) can also exclude certain files or directories
from the backup, for example the Temp directory. File exclusions and retention
periods are discussed in more detail in the Appliance Management-Capacity topic.
Compression
To further reduce network traffic, client files are compressed before they are backed
up over the network to the appliance. The cumulative effect of block-level
incremental backups, redundant file elimination and file compression techniques is to
keep the network traffic requirements low enough to make daily backups of local
hard disks a practical proposition, even over comparatively slow dial-up modem
connections.
The disk storage space required on the appliance to back up all client files is greatly
reduced by the effects of redundant file elimination and compression (a ratio of 3:1 is
typical when protecting 25 clients, increasing to 4:1 with 100 clients). This
requirement grows very slowly over time due to the block-level incremental backups
and retention policies.
Load Balancing
HP SureStore AutoBackup has a built-in automatic load-balancing feature, which
ensures that only five scheduled backups are running at any one time, thus reducing
the impact on network traffic. However, manual backups (which include dial-up
How Does It Work?
file:///D|/ADMIN_~1/eng/admin/how.htm (2 of 3) [5/3/2000 3:31:59 PM]

backups) and file recoveries are high-priority and will always run even if there are
five scheduled backup jobs running.
How Does It Work?
file:///D|/ADMIN_~1/eng/admin/how.htm (3 of 3) [5/3/2000 3:31:59 PM]

Product Overview
Specification
This topic describes the:
Specification for the HP SureStore AutoBackup PC25/100
Minimum requirements for the administrator's PC
Minimum requirements for the protected computer
HP SureStore AutoBackup
PC25/100
This specification covers both the PC25 and the PC100 model.
Physical Specifications
Dimensions: 232 mm wide x 442 mm deep x 448 mm high
9.1 x 17.4 x 17.6 inches
Weight: PC 25 12 kg (26 lb)
PC100 12.5 kg (28 lb)
Power Requirements
Power Consumption: 100 Volts AC 150 Watts; 240 Volts AC 135 Watts
Power Supply: 100-127 Volts AC - 4.0A ; 200-240 Volts AC - 2.5 A;
50-60 Hz autoranging
Operating Limits
Temperature: 5°C to 35°C (41°F to 95°F)
Humidity: 10% to 80% RH, non-condensing
Maximum Wet Bulb
Temperature: 30°C (86°F)
I/O Ports
Specifications
file:///D|/ADMIN_~1/eng/admin/spec.htm (1 of 4) [5/3/2000 3:32:01 PM]

Connectivity: 10/100 base-T auto-sensing LAN Connector (RJ45)
Wide Ultra SCSI-3 interface (for HP SureStore Tape
backup device)
Requires TCP/IP network protocol
Network
Compatible Network
Operating System: TCP/IP network protocol. Requires Windows NT 4.0 Workstation, Windows 95/98 or Windows 2000 clients
Administrator's PC (Minimum
Specification)
This is the minimum specification for the PC that is used to run the Installation
program and administer the appliance.
Operating System
Windows 95 PCs
(Version A or later): Intel, or compatible, 486DX2-66 MHz with 16 MB RAM
Windows 98 PCs (Second
Edition or original
release):
Intel, or compatible, 486DX2-66 MHz with 24 MB
RAM
Windows NT Workstations
(with Service Pack 4 or
later):
Intel, or compatible, Pentium 90 MHz with 32 MB
RAM
Windows 2000
Professional: Intel, or compatible, Pentium 90 MHz with 32 MB RAM
FAT16, FAT32 and NTFS file systems are supported. NTFS encryption (available
in Windows 2000) is NOT supported
Disk Space Required
Typical software
installation: 10 MB
Other Requirements
disk drive: 3.5" high density floppy disk drive
Network:
Network connection running TCP/IP protocol
Unique computer name for each client Network
Connection - Initial backup requires 10 Mbit
connection. Full backups require at least 28Kbit
connection
Monitor: VGA or higher resolution (800 x 600)
Browser Software: Internet Explorer v4 or higher only (not Netscape
Navigator)
Specifications
file:///D|/ADMIN_~1/eng/admin/spec.htm (2 of 4) [5/3/2000 3:32:01 PM]

Client PC (Minimum
Specification)
This is the minimum specification for the protected computers.
Operating System
Windows 95 PCs
(Version A or later): Intel, or compatible, 486DX2-66 MHz with 16 MB RAM
Windows 98 PCs (Second
Edition or original
release):
Intel, or compatible, 486DX2-66 MHz with 24 MB
RAM
Windows NT Workstations
(with Service Pack 4 or
later):
Intel, or compatible, Pentium 90 MHz with 32 MB
RAM
Windows 2000
Professional: Intel, or compatible, Pentium 90 MHz with 32 MB RAM
FAT16, FAT32 and NTFS file systems are supported. NTFS encryption (available
in Windows 2000) is NOT supported
Disk Space Required
Typical client software
installation: 5 MB
For Full Backups: Additional free disk space (after installation) equivalent
to the size of the Windows registry (20 MB should be
sufficient in most cases).
For file recoveries: Free disk space required is the greater of 1% of total
disk space or twice the size of the largest file on the
drive.
For Disaster Recovery:
Free disk space required is the total size of recovered
data plus enough free disk space to install a temporary
operating system. This can be as little as 20 MB but
could be substantially greater. In most cases, 50 MB
should be sufficient.
Other Requirements
CD-ROM drive: Bootable EIDE CD-ROM drive (for Disaster Recovery),
or non-bootable or SCSI CD-ROM drive plus 3.5" high
density floppy disk drive
CD-R media are recommended. (CD-RW media can
only be used with CD-RW compatible drives.)
Specifications
file:///D|/ADMIN_~1/eng/admin/spec.htm (3 of 4) [5/3/2000 3:32:01 PM]

Network:
Platform compatible network interface card or dial-up
adapter
TCP/IP network or dial-up networking
Unique computer name for each client Network
Connection - Initial backup requires 10 Mbit
connection. Full backups require at least 28Kbit
connection
Monitor: VGA or higher resolution (800 x 600)
Browser Software: Internet Explorer v4 or higher or Netscape Navigator v4
or higher
Specifications
file:///D|/ADMIN_~1/eng/admin/spec.htm (4 of 4) [5/3/2000 3:32:01 PM]

Appliance Management
This topic describes:
The front view of the HP SureStore AutoBackup appliance
The rear view of the HP SureStore AutoBackup appliance
How to switch the appliance on and off
Optional connection to HP SureStore tape drive
Front View
The front of the appliance houses the lightbar, the LCD (liquid crystal display), the
hard disk drive (or drives) and the CD-writer.
Appliance Managment
file:///D|/ADMIN_~1/eng/admin/applianc.htm (1 of 4) [5/3/2000 3:32:03 PM]

The lightbar indicates the appliance's general status.
The LCD displays status information about the appliance, the network, the
CD-Writer and the tape drive, when there is one connected.
The Power/Reset button is used to power on the appliance. It can also be used
for emergency reset.
The CD-Writer disk drive is used to create disaster recovery media for client
workstations.
Rear View
The rear of the appliance has the power socket and several ports, only two of which
are used.
The RJ45 network connection connects the appliance to the LAN.
The SCSI connection is used to connect the optional HP SureStore tape drive
only.
Appliance Managment
file:///D|/ADMIN_~1/eng/admin/applianc.htm (2 of 4) [5/3/2000 3:32:03 PM]

Note: The other connections are not used.
Switching the Appliance On and
Off
Use the Power button on the front of the server to switch the appliance off and on.
HP recommends that you do not do this while backup or restore is running. Never
remove the power cord before the appliance has been shut down (unless the
appliance has hung and cannot be shut down by any other means).
Emergency Reset
Use the Emergency Reset feature if you cannot access the AutoBackup Web-based
administration interface because:
You set the wrong network password when you installed the AutoBackup
appliance
There is an IP address conflict with another system on the network
You have forgotten your administrator name or password
You want to change the IP address. However, it is much easier to change the
IP address (and name) from View/Configure Network Settings.
Appliance Managment
file:///D|/ADMIN_~1/eng/admin/applianc.htm (3 of 4) [5/3/2000 3:32:03 PM]