Related Manuals for Hitachi MK-97DF8018-00
Summary of Contents for Hitachi MK-97DF8018-00
- Page 1 Hitachi Simple Modular Storage Copy-on- Write SnapShot User’s Guide INKS Document Organization Product Version Getting Help Table of Contents MK-97DF8018-00...
- Page 2 Hitachi Data Systems is a registered trademark and service mark of Hitachi, Ltd., and the Hitachi Data Systems design mark is a trademark and service mark of Hitachi, Ltd. Other company and product names mentioned herein are trademarks of their respective companies.
- Page 3 Getting Help • Comments Notice: The use of the Hitachi Simple Modular Storage 100and all Hitachi Data Systems products is governed by the terms of your agreement(s) with Hitachi Data Systems. Preface Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide...
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Page 4: Intended Audience
Familiarity with operating systems such as the Windows 2000, Windows Server 2003 operating system, or UNIX. Product Version This document applies to Hitachi Simple Modular Storage 100 microcode versions 1810/A and higher. Release Notes Make sure to read the Release Notes before enabling and using this product. -
Page 5: Document Organization
These documents contain information that is related to the topics in this document and can provide additional information about them. • Hitachi Storage Navigator 2 Command Line Interface (CLI) User’s Guide (MK-97DF8038), used to develop scripts. • Hitachi Command Control Interface (CCI) software for Modular Storage User's Guide (MK-97DF8016). -
Page 6: Document Conventions
• 1 GB = 1,000 • 1 TB = 1,000 Storage capacity values for hard disk drives (HDDs) in the Hitachi Simple Modular Storage 100 are calculated based on the following values: • 1 KB (kilobyte) = 1,024 bytes •... -
Page 7: Getting Help
Getting Help If you have questions after reading this guide, contact an Hitachi Data Systems authorized service provider[H1] or visit the Hitachi Data Systems support website, http://support.hds.com. Support Contact Information If you purchased this product from an authorized Hitachi Data Systems reseller, contact that reseller for support. - Page 8 Preface Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide...
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Page 9: Table Of Contents
Selecting a Reasonable Time Between Snapshots ....2-3 Establishing How Long a Copy Is Held (Copy Lifespan) ....2-3 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Table of Contents... - Page 10 Test the Configuration ......... 6-8 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide...
- Page 11 Index..........Index-1 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide...
- Page 12 Contents Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide...
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Page 13: Snapshot Overview
SnapShot Overview Snapshot creates virtual copies of data volumes within Hitachi Simple Modular Storage systems. These copies can be used for recovery from logical errors. They are identical to the original volume at the point in time they were taken. -
Page 14: Copy-On-Write Snapshot Software
LAN. SnapShot employs primary volumes (P-VOLs), virtual volumes (V-VOLs), data pool, and Hitachi Storage Navigator Modular 2 Graphical User Interface. Advanced user functionality is available with Storage Navigator 2 Command-Line interface (CLI) and Hitachi Command Control Interface (CCI). -
Page 15: How Snapshot Works
The pair can be made identical again by re-synchronizing changes from primary-to-secondary or secondary-to-primary. 1–3 SnapShot Overview Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide... -
Page 16: Volume Pairs-P-Vols And V-Vols
P-VOL, SnapShot copies data being replaced to the data pool. V-VOL pointers are updated to reference the original data's new location in the pool. Figure 1-2 1–4 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide illustrates SnapShot volumes and data pool interaction. SnapShot Overview... - Page 17 • Figure 1-2: V-VOL Maintains SnapShot Data 1–5 SnapShot Overview Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide...
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Page 18: Data Pools
• CAUTION! Storage Navigator 2 CLI is provided for users with significant storage management expertise. Improper use of this CLI could void your Hitachi Simple Modular Storage 100 system warranty. Please consult with your reseller before using CLI. 1–6 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide... -
Page 19: Planning And Design
The Plan and Design Workflow Assessing Business Needs Establishing Data Pool Size Calculating Maximum Capacity Operating System Considerations Planning and Design Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide 2–1... -
Page 20: The Plan And Design Workflow
To determine how often a snapshot should be taken • Using knowledge of your business, decide how much data could be lost in a disaster without significant impact to the business. 2–2 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Planning and Design Data Pools... -
Page 21: Selecting A Reasonable Time Between Snapshots
=> the time required to copy the data to tape. For example: Hours to copy a V-VOL to tape = 3 hours V-VOL lifespan => 3 hours Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Planning and Design 2–3... -
Page 22: Lifespan Based On Business Uses
SnapShot system would require 4 V-VOLs, since there are four 12-hour intervals during the 48-hour period. This is illustrated in Figure 2-1. • 2–4 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Figure 2-1: V-VOL Frequency, Lifespan Planning and Design... -
Page 23: Establishing Data Pool Size
Collect this data at 10 minute intervals. • Collect this data over a 4-6 week period that includes high peaks and spikes, and when the demands on the system are greatest. • Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Planning and Design 2–5... - Page 24 Figure 2-4 illustrates 60-minute rolling averages. • Figure 2-4: Rolling Averages Calculated Using V-VOL Frequency Example rolling-average procedure using Excel: a. In cell C4, type =Average(b2:b7). 2–6 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Planning and Design Figure 2-3 shows...
- Page 25 For example, if the RA peak is 25 MB/sec, and the V-VOL lifespan is 3600 seconds (1 hour), then: 25MB/sec x 3600 seconds = 90,000 MB The cumulative data over a V-VOL’s 1-hour lifespan is 90,000 MB. Planning and Design Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide 2–7...
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Page 26: Rule Of Thumb Calculation
1. P-VOL = 1 TB. 1 snapshot per 24 hours. 25% of 1 TB = 250 GB. 2. Multiply the initial calculation by the Hitachi safety factor of 2.5. In the example above: 2.5 x 250 GB = 625 GB. This is the base data pool size. -
Page 27: Calculating Maximum Capacity
19 * 3.2 = 60.8 GB, managed data pool capacity 5. Calculate maximum capacity using the following equation: (Total P-VOL capacity) / 5 + (Total Data Pool capacity) < = 800 GB For example: Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Planning and Design 2–9... -
Page 28: Operating System Considerations
Windows disk to an LUN, proceed as follows: 1. Identify the HLUN of your Windows disk. a. From the Windows Server 2003 Control Panel, select Computer Management>Disk Administrator. 2–10 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Planning and Design... -
Page 29: Cluster Software, Path Switching Software
Windows Server 2003 by standard. Please install CCI on the server on which the mount command is to be executed. For more information, see the Hitachi Simple Modular Storage Command Control Interface (CCI) Reference Guide. -
Page 30: Linux And Lvm Configuration
–vg idb command. No restriction is placed on the primary side. Hide all the dynamic disk volumes to be restored on the primary side at the time of restoration. 2–12 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Planning and Design... - Page 31 If any one of the dynamic disks is left unhidden, a Missing drive occurs. When this occurs, delete it manually using the diskpart delete command (CCI required). • 2–13 Planning and Design Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide...
- Page 32 • • A dynamic disk cannot be used with a cluster (MSCS, VCS, etc.). • A dynamic disk cannot be used with VxVM and HDLM. 2–14 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Planning and Design...
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Page 33: Requirements
Requirements This chapter describes minimum operational requirements. System Requirements Supported Platforms 3–1 Requirements Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide... -
Page 34: System Requirements
SnapShot. Table 3-2: S upported Platforms Platforms PC Server (Microsoft) Red Hat 3–2 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide for additional information. Minimum Requirements Operating System Version Solaris 8 (SPARC) Solaris 9 (SPARC) Solaris 10 (SPARC) -
Page 35: Enabling And Disabling Snapshot
Enabling and Disabling SnapShot SnapShot is bundled with the Simple Modular Storage system. It must be enabled before using. SnapShot can also be disabled. Enabling/Disabling SnapShot 4–1 Enabling and Disabling SnapShot Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide... -
Page 36: Enabling/Disabling Snapshot
OK. The Reboot Array message appears confirming the operation is complete. Before beginning the restart process, make sure that the host has stopped accessing data. 4–2 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Enabling and Disabling SnapShot... - Page 37 Storage system does not respond after 15 minutes, check its condition. • 8. When rebooting has finished, a message appears stating that the restart is successful. Click Close. Enabling and Disabling SnapShot Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide 4–3...
- Page 38 4–4 Enabling and Disabling SnapShot Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide...
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Page 39: Configuring Snapshot
Configuring SnapShot This chapter describes the steps for setting up SnapShot. Configuration Workflow Assign Volumes for the Data Pool Set Up the Virtual Volume (V-VOL) (manual method) 5–1 Configuring SnapShot Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide... -
Page 40: Configuration Workflow
Size on page • Up to 64 volumes can be assigned to a data pool. • Hitachi recommends a minimum of 20 GB for data pool size. • The default Threshold value is 70%. • When capacity reaches the Threshold plus 1 percent, both data pool and pair status change to “Threshold over”, and the Storage... -
Page 41: Set Up The Virtual Volume (V-Vol) (Manual Method)
6. Enter the V-VOL size in the Capacity field. Capacity must equal the size of the P-VOL. The Capacity range is 1 MB - 128 TB. 7. Click OK. Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Setting the V-VOL on page Configuring SnapShot A-4.) - Page 42 5–4 Configuring SnapShot Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide...
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Page 43: Using Snapshot
Restore the P-VOL from the V-VOL Use the V-VOL for Tape Backup, Testing, Reports, Etc. Edit Pairs, Data Pool Delete Pairs, V-VOLs, Data Pools. Test the Configuration Using SnapShot Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Using SnapShot 6–1... -
Page 44: Snapshot Replication Workflow
Volume link. The Backup Your Volume Wizard window opens. 3. On the Introduction screen, click Next. The Select Primary Volume screen displays. 6–2 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide for primary volume specifications. 5-2. for primary volume specifications. -
Page 45: Create Pair Procedure
The pace differs depending on host I/O activity. Fast — The copy/resync process is performed continuously and takes priority. Host I/O performance is restricted. The time of copy/resync completion is guaranteed. Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Using SnapShot 6–3... -
Page 46: Update The V-Vol
1. In Navigator 2 GUI, select the desired array, then click the Show & Configure Array button. 6–4 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Consistency Group (CTG) on page a. On the Pairs screen, check the box for the pair belonging to the group. -
Page 47: Restore The P-Vol From The V-Vol
Restore from Tape You can restore the P-VOL from tape directly or indirectly, as follows: • If the V-VOL is in Failure status. • Data pool capacity Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide A-6. Using SnapShot Restoring V- 6–5... -
Page 48: Use The V-Vol For Tape Backup, Testing, Reports, Etc
NOTE: When performing read operations against the snapshot image (V- VOL), you are effectively reading from the P-VOL. This extra I/O on the P- VOL affects the performance. 6–6 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide 6-4. A-6. 6-4. -
Page 49: Edit Pairs, Data Pool
3. Click Delete Pair. To delete a V-VOL 1. Make sure that the pair is deleted first. The pair status must be SIMPLEX to delete the V-VOL. Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Changing Pair Information on A-7. Using SnapShot Releasing 6–7... -
Page 50: Test The Configuration
4. A message appears. Click Close. Test the Configuration You should confirm your system’s configuration by closely monitoring pair status and data pool usage. See monitoring procedures. 6–8 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Monitoring SnapShot on page 7-2 Using SnapShot... -
Page 51: Monitoring And Maintenance
V-VOLs associated with it are invalidated, and backup data is lost. This chapter provides information and instructions for monitoring and maintaining the SnapShot system. Monitoring SnapShot Expanding the Data Pool Monitoring and Maintenance Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Monitoring and Maintenance 7–1... -
Page 52: Monitoring Snapshot
Reverse Synchronizing Split Thresholdover Failure 7–2 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Description Status when the volume has not have been paired or when the pair has been deleted. The volume has no SnapShot association with another volume. -
Page 53: Monitoring Data Pool Usage
A re-evaluation of your SnapShot system’s design may show that not enough data pool space was originally allocated. See on page 2-1 for more information. Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Update the V-VOL on page Monitoring and Maintenance 6-4. - Page 54 7–4 Monitoring and Maintenance Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide...
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Page 55: Troubleshooting
Two types of problem can be experienced with a SnapShot system: pair failure and data pool capacity exceeded. This chapter discusses the causes and provides solutions for these problems. Pair Failure Data Pool Capacity Exceeded Troubleshooting Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Troubleshooting 8–1... -
Page 56: Pair Failure
2. Restore the array. See Navigator 2 program Help for details. 3. When the array is restored, delete the pair. See Data Pools on page 6-7 4. Re-create the pair. 8–2 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide 7-2. Chapter 2, Planning and Assign Volumes for the 5-2. -
Page 57: Data Pool Capacity Exceeded
Most likely, the POOL FULL condition has caused pair failures as well. To address these problems, please see Recovering from Pair Failure Due to POOL FULL on page 8-2. 8–3 Troubleshooting Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide... - Page 58 8–4 Troubleshooting Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide...
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Page 59: Operations Using Cli
CAUTION! Storage Navigator 2 CLI is provided for users with significant storage management expertise. Improper use of this CLI could void your Hitachi Simple Modular Storage 100 system warranty. Please consult with your reseller before using CLI. This appendix describes Storage Navigator 2 Command Line Interface (CLI) procedures for Snapshot enabling, configuration and operations. -
Page 60: Enabling And Disabling Snapshot
3. Execute auopt to confirm whether the status has been changed. An example is shown below. • % auopt -unit subsystem-name -refer Option NameType SNAPSHOTPermanent --- A–2 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Term Status Disable Operations Using CLI... -
Page 61: Operations For Snapshot Configuration
% aupool –unit subsystem-name –add –poolno 0 -lu 100 Are you sure you want to add the logical unit(s) to the data pool (y/n[n]): y The logical unit has been successfully added. Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Type Status 6( 9D+2P) 6( 9D+2P) -
Page 62: Setting The V-Vol
% aureplicationvvol –unit subsystem-name –add –lu 1000 –size 1 Are you sure you want to create the SnapShot logical unit 1000? (y/n[n]): y The SnapShot logical unit has been successfully created. A–4 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide : 70% : Normal Capacity RAID Group RAID Level 30.0GB... -
Page 63: Performing Snapshot Cli Operations
• % aureplicationlocal –unit subsystem-name –ss –refer Pair name Copy Type SS_LU0200_LU1001 SnapShot The Snapshot pair is created. Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Type Status 6( 9D+2P) 6( 9D+2P) LUN Pair LUN Status Group 200 1001 ---:Ungrouped... -
Page 64: Updating Snapshot Logical Unit
2. Execute the aureplicationlocal command restore the pair. First, display the pair status, and then restore the pair. Refer to the following example. A–6 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide LUN Pair LUN Status Group 200 1001 ---:Ungrouped... -
Page 65: Releasing Snapshot Pairs
3. Execute aureplicationlocal to release the pair. Refer to the following example. • % aureplicationlocal –unit subsystem-name –ss –refer DMEC002015: No information is displayed. The Snapshot pair is released. Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide LUN Pair LUN Status Group 200 1001 ---:Ungrouped LUN Pair LUN Status... -
Page 66: Changing Pair Information
SnapShot pairs that share the same P-VOL must use same Data Pool. 4. By repeating the step 3, the multiple pairs that belong to the same group can be created. A–8 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide -newgname group-name Operations Using CLI... -
Page 67: Sample Back Up Script For Windows
GUID, which is displayed by mountvol command, is needed as argument to use mount command of CCI. For more detail about mount command, see the Hitachi Simple Modular Storage Command Control Interface (CCI) Reference Guide. Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Operations Using CLI A–9... - Page 68 A–10 Operations Using CLI Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide...
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Page 69: Snapshot Specifications
SnapShot Specifications This appendix provides external specifications for SnapShot Snapshot. General Specifications B–1 SnapShot Specifications Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide... -
Page 70: General Specifications
Access to the volumes for data pool from a host Expansion of data pool capacity B–2 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Specification SMS100 (For dual configuration only.) iSCSI SMS100: 510 (maximum) Up to 128 per disk subsystem can be set. - Page 71 Concurrent use with Password Yes. Protection Potential effect caused by a P- V-VOL data also exists in the P-VOL, VOL failure therefore P-VOL failure results in a V-VOL failure also. SnapShot Specifications Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Specification B–3...
- Page 72 B–4 SnapShot Specifications Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide...
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Page 73: Glossary
Glossary This glossary provides definitions for replication terms as well as terms related to the technology that supports your Hitachi Simple Modular Storage 100 array. Click the letter of the glossary section to display that page. • A B C D E... - Page 74 See command control interface. • A B C D E Glossary–2 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide R S T X Y Z...
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Page 75: Concurrent Copy
(CCI) Hitachi's Command Control Interface software provides command line control of Hitachi array and software operations through the use of commands issued from a system host. Hitachi’s CCI also provides a scripting function for defining multiple operations. -
Page 76: Configuration Definition File
VOL to the S-VOL. TrueCopy Extended Distance Software remote replication processes are implemented as recurring cycle update operations executed in specific time periods (cycles). • A B C D E Glossary–4 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide R S T X Y Z... - Page 77 An enterprise storage system containing multiple disk drives. Also referred to as “disk array device” or “disk storage system.” DM-LU See Differential Management-Logical Unit. • A B C D E Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide R S T X Y Z Glossary–5...
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Page 78: Fault Tolerance
A system with the ability to continue operating, possibly at a reduced level, rather than failing completely, when some part of the system fails. See fibre channel. • A B C D E Glossary–6 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide R S T X Y Z... -
Page 79: Fibre Channel
A port-type used for main control unit port of Fibre Remote Copy function. IOPS I/O per second. • A B C D E Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide R S T X Y Z Glossary–7... -
Page 80: Logical Unit
This storage feature is operated through Storage Navigator Modular 2 software and manages access paths among host and logical units for each port in your array. • A B C D E Glossary–8 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide R S T X Y Z... -
Page 81: Pair Status
Pair statuses are used to monitor copy operations and detect system failures. • A B C D E Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide R S T X Y Z Glossary–9... - Page 82 In copy operations a copy source volume is called the P-VOL while the copy destination volume is called "S-VOL" (secondary volume). P-VOL See primary volume. • A B C D E Glossary–10 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide R S T X Y Z...
- Page 83 See Recovery Point Objective. See Recovery Time Objective. • A B C D E Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide R S T X Y Z Glossary–11...
- Page 84 See Storage Navigator Modular 2. Storage Navigator Modular 2 A multi-featured scalable storage management application that is used to configure and manage the storage functions of Hitachi arrays. Also referred to as “Navigator 2”. suspended status Occurs when the update operation is suspended while maintaining the pair status.
- Page 85 (S-VOL) on the remote storage systems. V-VOL See virtual volume. V-VOLTL Virtual Volume Tape Library. Workgroup Modular Storage. • A B C D E Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide R S T X Y Z Glossary–13...
- Page 86 The amount of data written to a volume over a specified period of time. • A B C D E Glossary–14 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide R S T X Y Z...
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Page 87: Index
Threshold field when data is deleted deleting a pair Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide deleting a V-VOL designing the SnapShot system Differential data, deleted Differential Management LUs description disabling SnapShot editing data pool information... - Page 88 V-VOL for Threshold reached, consequences version Navigator 2 Index-2 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide Simple Modular Storage volume pairs creating description editing monitoring status statuses volumes assigning to data pools...
- Page 89 Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide...
- Page 90 Hitachi Data Systems Corporate Headquarters 750 Central Expressway Santa Clara, California 95050-2627 U.S.A. Phone: 1 408 970 1000 www.hds.com info@hds.com Asia Pacific and Americas 750 Central Expressway Santa Clara, California 95050-2627 U.S.A. Phone: 1 408 970 1000 info@hds.com Europe Headquarters...