HP StorageWorks D2D Backup Systems

• Choice of backup targets VTL, NAS (CIFS/NFS), or both for backup applications and agents providing users with flexibility in how they configure their backups. A free firmware upgrade via www.hp.com is available for all existing D2D users from December 2009. All products purchased after December 2009 will have both virtual tape library and NAS (CIFS/NFS) targets for backup.

D2D Backup Systems offers instant access to backups for rapid restores.

Data deduplication is a method of reducing storage needs by eliminating redundant data so that over time only one unique instance of the data is actually retained on disk. As a result, up to 50x more backup data can be retained in the same disk footprint.

Adding data deduplication to disk-based backup delivers a number of benefits:

• A cost effective way of keeping your backup data on disk for a number of weeks or even months. More efficient use of disk space effectively reduces the cost-per-gigabyte of storage and the need to purchase more disk capacity.
• Making file restores fast and easy from multiple available recovery points. By extending data retention periods on disk, your backup data is more accessible for longer periods of time, before archiving to tape. In this way, lost or corrupt files can be quickly and easily restored from backups taken over a longer time span.
• Ultimately, data deduplication makes the replication of backup data over low bandwidth WAN links viable (providing offsite protection for backup data) as only changed data is sent across the connection to a second device (either a second identical device or one that comes from this product family).

How it works
Deduplication works by examining the data stream as it arrives at the storage appliance, checking for blocks of data that are identical and eliminating redundant copies. If duplicate data is found, a pointer is established to the original set of data as opposed to actually storing the duplicate blocks, removing or "deduplicating" the redundant blocks from the volume. The key here is that the data deduplication is being done at the block level to remove far more redundant data than deduplication done at the file level where only duplicate files are removed.

Data deduplication is especially powerful when it is applied to backup, since most backup data sets have a great deal of redundancy. The amount of redundancy will depend on the type of data being backed up, the backup methodology and the length of time the data is retained.

Example. Backing up a large customer database that gets updated with new orders throughout the day. With the typical backup application you would normally have to back up, and more importantly store, the entire database with each backup, (and even incremental backups will store the full database again). With block-level deduplication, you can backup the same database to the device on two successive nights and, due to its ability to identify redundant blocks, only the blocks that have changed will be stored. All the redundant data will have pointers established.

The HP approach to deduplication - D2D and VLS
Recognizing the differing needs of the small and medium businesses versus large and enterprise data centers, HP has selected two different deduplication technologies to match each requirement.

HP Dynamic deduplication for HP StorageWorks D2D Backup Systems - meeting the needs of smaller IT environments with requirements for low cost solutions, smaller storage capacities, ease of use and broad compatibility.

HP Accelerated deduplication for HP StorageWorks Virtual Library Systems (VLS) - delivering maximum benefit for data center environments by being optimized for performance and scalability. Accelerated deduplication takes place outside of the backup window, therefore, allowing all system resources to be focused on completing the backup before starting deduplication. Accelerated deduplication also retains a full copy of the latest backup so that restore times are exceptionally fast.

HP Dynamic deduplication
The HP patented Dynamic deduplication algorithm has been designed specifically for smaller IT environments, such as remote and branch offices and small data centers, to provide for low cost solutions with a small footprint. It uses inline deduplication based on hash algorithms with additional levels of error prevention and correction to verify the integrity of data backup and restore. Importantly and unlike some other forms of data deduplication technology, HP Dynamic deduplication is independent of the data format recorded and so works with most the leading backup application packages.

What deduplication ratio can I expect?
The actual data deduplication ratio you can expect will depend on a number of factors including: the type of data, the backup methodology used, and the length of time you retain your data. However, assuming standard business data mix and extended on disk retention (periods of more than 12 weeks) you could expect to see:
20:1 capacity ratio assuming a weekly full and daily incremental backup model
50:1 capacity ratio assuming daily full backups

For more information on achieving deduplication ratios go to: www.hp.com/go/deduplication

While originally released as a virtual tape library, D2D Backup Systems are now capable of supporting both VTL and NAS (CIFS and NFS) targets for backup applications on a single platform.

A virtual tape library (or VTL) is a disk-based solution which sits between your server and your physical tape drive/library to provide faster data backup, greater data availability and rapid restores. The D2D Backup Systems emulate both LTO tape autoloaders and libraries which are then recognized by the backup application as one or more physical tape devices. As compared to other disk-based data protection solutions, the advantages of using a virtual tape library are its ability to leverage and integrate into current tape backup environments, its ease of setup and management, and its minimal maintenance requirements.

When using the HP D2D Backup System as a NAS target, one or more file shares can be created on each system which are then used by the backup application as either CIFS or NFS targets for backup. Recognized and supported by a wide range of backup applications and integrated backup agents, using the D2D System as a NAS target provides a simple and cost-effective method to centralize and automate the backup of multiple servers in a non-tape environment. However, while the D2D Backup System may appear to the backup application as a NAS device, it has been designed and optimised for backup applications and hence includes data deduplication and support for low-bandwidth replication and is not intended as a generic file-share device.

Differences between using a NAS or a VTL target for the HP D2D Backup System

For customers already familiar with or who plan to continue using tape automation in their backup environment, using VTL as a target for backup applications for the HP D2D Backup System can provide some key advantages including:

• Ensuring top backup performance.
• The ability to directly offload backups from the virtual tape library to physical tape.
• The ability to leverage tape automation licensing that may already be in use with your backup application.

Customers who are more familiar with using file systems, and for those customers who may be moving away from using tape backup, may find using the D2D Backup System as a NAS target provides a simpler way to configure their backup. Using the D2D System as a NAS target for backup can also provide some key advantages including:

• No need for additional backup application licensing as most mainstream backup application and integrated backup agents include support for backup to CIFS and NFS devices.
• No need for expertise in traditional backup methods as backup to a file share provides a simple method for backup.
• An easily adaptable backup methodology for remote offices where local tape backup will not be deployed and IT resources are limited.

While using the D2D Backup System as a NAS target for backup may provide a simple method for backup and recovery, there are a number of additional considerations one must be aware of when implementing this methodology including:

1. There is a restriction on the number of backups each file share can accept concurrently. This varies based on the backup application being used and what data type is being backed up. Please refer to the HP D2D Backup Systems Best Practices Guide for additional details.
2. Deduplication will occur on any backup file that is greater than 24 MB. Backup applications may also create some small files during a backup job, these will not be deduplicated in order to ensure maximum performance and random access.
3. For offloading data to physical tape for archival or off-site storage, customers must use traditional copy methods via the backup application rather than the HP D2D tape offload feature.
4. NAS targets on the D2D system are designed to be accessed for backup as such a file may only be accessed by a single user at a time - multiple users are not permitted to access the same file simultaneously.

There are significant differences between using a general NAS device and an HP D2D Backup System with a NAS target for backup applications.

The HP ProLiant Storage Server family of NAS appliances provide general disk file share and protection for Windows environments. The HP D2D Backup Systems have been specifically designed for backup and uniquely offer:

• Easier setup, maintenance and administration of backup
• Data deduplication functionality, allowing more backup data to be retained on disk for longer
• Low-bandwidth data replication for cost-effective off-site storage

The D2D backup Systems should not be used for general purpose NAS operations such as file sharing. The HP D2D Backup System is designed for one particular usage model - as target storage device for backup applications. D2D Backup Systems include in-line data deduplication and support for low bandwidth replication (via a license) and is optimized for these features.

Backup system for mid sized data centers and as a replication target device for remote and branch offices, the 2U D2D4112 series delivers a scalable solution from 9 to 18 TB of useable capacity using a simple and cost effective 2U capacity upgrade and speeds of up to 720 GB/hour*. These devices automate the daily backup of multiple distributed servers through the flexibility of virtual tape library and NAS (CIFS and NFS) targets for backup applications.

*Actual performance is dependent upon data set type, compression levels, number of data streams, number of devices emulated and number of concurrent tasks, such as housekeeping or replication.

The HP D2D Backup Systems are supported on servers that use Microsoft Windows or Linux operating systems, including HP ProLiant, HP Integrity Servers and a variety of third-party servers.

For compatibility details on specific servers, refer to our website for the latest hardware compatibility information: http://www.hp.com/go/connect for D2D2500 and D2D4000 or http://www.hp.com/go/ebs for D2D4000 and D2D4112.

The HP D2D Backup Systems are supported with Microsoft Windows, Linux, HP-UX and Solaris operating systems.

For more details, refer to our website for the latest information: http://www.hp.com/go/connect for D2D2500 and D2D4000 or http://www.hp.com/go/ebs for D2D4000 and D2D4112.

The HP D2D Backup Systems support direct connection of the following HP LTO Ultrium tape drives, tape autoloaders and tape libraries using an appropriate host bus adapter:

• HP External LTO-2, LTO-3, and LTO-4 Ultrium tape drives
• HP Internal LTO-2, LTO-3, and LTO-4 Ultrium tape drives in either an HP 1U or 3U Rack-mount Kit
• HP External 1/8 G2 Autoloader with LTO-2, LTO-3, and LTO-4 Ultrium tape drives
• HP External MSL2024 Tape Library with LTO-2, LTO-3 and LTO-4 Ultrium tape drives
• HP External MSL4048 Tape Library with LTO-2, LTO-3 and LTO-4 Ultrium tape drives

NOTE: When using the D2D Backup System as a NAS target for backup, direct offload to physical tape is not supported.

Backup to tape autoloaders and tape libraries is also available across the network, using the tape-to-tape (or media copy) feature in your backup. For further information about these products, visit the HP Web site at: www.hp.com/go/tape

For the best performance, the HP D2D Backup Systems should be connected to the servers it protects via a 1Gb (gigabit) Ethernet network. It is supported on all 1Gb Ethernet network interface cards (NICs) and switches. The device will run on either IPv4 or IPv6 networks.

The HP D2D Backup Systems are also supported on 100 base-T Ethernet networks, but performance will be severely restricted. This product is not supported on networks using slower Ethernet technology.
When using Virtual tape devices the D2D Backup Systems can communicate data over your Ethernet network using iSCSI technology:

• For Windows systems, this requires installation of the Microsoft iSCSI Initiator 2.02 (or above) software driver on each server that will be backed up to the HP D2D Backup System. This initiator is downloaded and installed from Microsoft automatically by the installation wizard and is also available via free download from the Microsoft website at: http://www.microsoft.com
• For supported Linux operating systems, a software iSCSI initiator is provided with the operating system but may need to be installed separately if not included in the initial operating system installation.

Hewlett-Packard provides a 1 year parts exchange, 1 year labor, 1 year on site, normal business hours, next business day response for HP StorageWorks D2D4004, D2D4009 and D2D4112 Backup Systems, plus 9x5 phone support for the duration of the warranty.

The StorageWorks D2D2500 includes a1-year, next-day, parts exchange, limited warranty for the HP plus 9x5 phone support for the duration of the warranty.

Where a Tape Drive is attached to a D2D Backup System, the tape drive carries its own separate warranty. Hewlett-Packard provides a 3-year, next-day, parts exchange, limited warranty for the HP StorageWorks Ultrium tape drive, plus 9x5 phone support for the duration of the warranty.

HP warrants only that the HP StorageWorks Data Protector Express Software media will be free of physical defects for a period of ninety (90) days from delivery.

For more information about HP's Global Limited Warranty and Technical Support, visit:
ftp://ftp.compaq.com/pub/products/storageworks/warranty/321708-408.pdf

For increased uptime, productivity and ROI -HP Care Pack packaged services for Storage
These days, you need to get the most out of your storage investment-you can't afford not to. When you buy HP storage products and solutions, it's also a good time to think about what levels of service and support you may need. To help take the worry out of deploying, designing, maintaining, and managing your environment, we've designed a portfolio of service options that are as: flexible, reliable and scalable as your storage. Unlike storage-only vendors, we take a holistic approach to your entire environment, bridging storage, servers, blades, software and network infrastructures with our HP Care Pack packaged services for Storage.

Protect your business beyond the warranty
When it comes to robustness and reliability, standard warranties on today's computing equipment have matured just as the technologies have matured. Good news on some fronts-but also a source of potential problems and subsequent consequences that come from depending on standard warranties alone. Standard warranty protects against product defects and some causes of downtime- but not the business. By using a standard approach to warranty uplifts, such as HP Care Pack Services, you can reduce downtime risks and be more certain of operational consistency for both mission-critical and standard business computing. Simply put, HP Care Pack Services normalize the warranty of combined products - helping you proactively guard against unplanned downtime.

Extending warranties with HP Care Pack Services
For cost-effective upgrading or extending your standard warranty, HP Care Pack Services offer a suite of standard reactive hardware and software support services that are sold separately, or combined as with our Support Plus and Support Plus 24 services. The portfolio also provides a combination of proactive and reactive services, such as Proactive 24 Service and Critical Service. In addition, with HP Proactive Select we offer an innovative approach to service delivery that gives you the flexibility to acquire the specific proactive services you need today, then add services as your needs evolve. HP Proactive Select offers a broad set of technical or per-event type service options - including server, storage, and network, SAN device, and software, environment, installation and education services. Services that you can mix and match depending on your specific requirements, from preliminary planning and equipment delivery to installation, configuration, integration, and testing, through every level of ongoing support. Our HP Care Pack packaged services for Storage assures help when you need it most. And for many products, post-warranty HP Care Pack Services are available when your original warranty has expired.

HP Storage Services: Offering reliability, flexibility and value-just like your storage
HP Storage Services offers a full spectrum of customer care, from technology support to complex migrations to complete completely managed services. HP Factory Express provides customization, integration and deployment services for turnkey solutions. HP Education offers flexible, comprehensive training on storage networking, disk storage systems, and storage software to help your IT staff get the most out of your investments. And HP Financial solutions extend innovative financing and asset management programs to cost-effective buy, manage and eventually retire your older equipment.

HP Technology Services, the trusted business technology experts who manage your technology in action, because when technology works, business works. http://www.hp.com/hps/storage

NOTE: Care Pack Services availability may vary by product and country.

HP Care Pack Services are sold by HP and HP Authorized Service Partners:

• Services for customers purchasing from HP or an enterprise reseller are quoted using HP order configuration tools.
• Customers purchasing from a commercial reseller can find HP Care Pack Services at:
  http://www.hp.com/go/lookuptool

• Improve uptime with responsive hardware and software services
• Enjoy consistent service coverage across geographically dispersed sites
• Update HP software at a predictable cost
• Increase customer satisfaction-with no interoperability gaps

http://h20195.www2.hp.com/V2/GetPDF.aspx/5981-6638EN.pdf

• Allows customer's IT resources to stay focused on their core tasks and priorities
• Reduces implementation time, impact and risk to customer's storage environment
• Lowers the risk associated with deployment

http://h71028.www7.hp.com/ERC/downloads/5981-9356EN.pdf

HP eSupport is a portfolio of technology-based services that assist you with managing your business environment - from the desktop to the data center.

Support Portal
The HP support portal provides one-stop access to the information, tools and services you need to manage the daily operations of your IT environment.

Features include:

• Access to self-solve tools (including search technical knowledge base)
• Efficient logging and tracking of support cases
• Collaboration with other business and IT professionals
• Download of patches and drivers
• Access to diagnostic tools
• Proactive notification of relevant information

Access to certain features of the support portal requires an HP service agreement. To access the support portal, visit: http://www.hp.com/support

Consider education as an integral part of your strategy to get the best return on investment for your HP storage solution. HP offers a variety of training courses on storage software, networking, archiving and disk storage systems. Our classes are available in many delivery modalities from traditional instructor-led courses at one of our 80 training centers worldwide to on-site training customized to your needs or online. www.hp.com/learn/storage

HP Services continues to be recognized for service and support excellence by customers, partners, industry organizations and publications around the world. Recent honors and award reflect our services team's dedications, technical expertise, professionalism and uncompromising commitment to customer satisfaction. For a list of all our awards, please visit: http://h20129.ww2.hp.com/services/cache/77318-0-0-225-121.html.

For more information about HP Care Pack Services for Storage, please visit: http://www.hp.com/hps/storage

If you have specific questions, contact your local HP representative. Contact information for a representative in your area can be found at "Contact HP" http://www.hp.com

EH939A

• These licenses enable an appliance to host replication target libraries. (No license is required for appliances which only act as replication sources)
• Licensing is "per appliance" i.e. A single license is required to enable an appliance to host as many replication target libraries as it is capable of
• Licenses are delivered via www.webware.hp.com and are node-locked by appliance serial number (and are not transferable)
• Total number of source appliances that can replicate into a single target appliance is as follows:
  • D2D4112 target supports up to 24 source D2D appliances
  • D2D4004/D2D4009i/fc target supports up to 16 source D2D appliances
  • D2D2504i target supports up to 8 source D2D appliances
  • D2D2503i target supports up to 6 source D2D appliances
  • D2D2502i target supports up to 4 source D2D appliances

Power Requirements (per power supply)

© Copyright 2009 Hewlett-Packard Development Company, L.P.

The information contained herein is subject to change without notice.

The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.

For hard drives, 1 GB = 1 billion bytes. Actual formatted capacity is less.