HP D2D Backup System Concepts guide (EH985-90915, March 2011)
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... guide before you are new to the HP StoreOnce Backup System, it is available on the HP StoreOnce Backup System in order to optimize performance and minimize the impact of this guide have later updates. It describes the StoreOnce technology and advises how to plan the ...resources. Always check http://www.hp.com/support/manuals for the most up-to launch. IMPORTANT: The localized versions of deduplication, replication and housekeeping operations competing for your system. HP StoreOnce Backup System Concepts Guide Abstract If you configure your product. HP Part Number: EH985-90915 ...
... guide before you are new to the HP StoreOnce Backup System, it is available on the HP StoreOnce Backup System in order to optimize performance and minimize the impact of this guide have later updates. It describes the StoreOnce technology and advises how to plan the ...resources. Always check http://www.hp.com/support/manuals for the most up-to launch. IMPORTANT: The localized versions of deduplication, replication and housekeeping operations competing for your system. HP StoreOnce Backup System Concepts Guide Abstract If you configure your product. HP Part Number: EH985-90915 ...
HP D2D Backup System Concepts guide (EH985-90915, March 2011)
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Contents 1 Before you start 5 Overview...5 NAS targets for backup applications 5 Virtual Tape Library targets for backup applications 5 Comparing NAS and Virtual Tape Library targets 6 Connecting to the HP StoreOnce Backup System 6 For more information...6 2 Virtual Tape Devices 7 Overview...7 Emulation types... is data deduplication?...15 Data deduplication and the HP StoreOnce Backup System 15 Tape rotation example with data deduplication 16 5 Replication 18 Replication overview...18 HP StorageWorks Replication Manager (HP D2D4xxx Series only 19 Replication concepts and terminology ...
Contents 1 Before you start 5 Overview...5 NAS targets for backup applications 5 Virtual Tape Library targets for backup applications 5 Comparing NAS and Virtual Tape Library targets 6 Connecting to the HP StoreOnce Backup System 6 For more information...6 2 Virtual Tape Devices 7 Overview...7 Emulation types... is data deduplication?...15 Data deduplication and the HP StoreOnce Backup System 15 Tape rotation example with data deduplication 16 5 Replication 18 Replication overview...18 HP StorageWorks Replication Manager (HP D2D4xxx Series only 19 Replication concepts and terminology ...
HP D2D Backup System Concepts guide (EH985-90915, March 2011)
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... import...45 Tape spanning ...46 Replication and Tape Attach...46 About this guide 48 Intended audience...48 Related documentation...48 Document conventions and symbols 48 HP technical support...49 Customer self repair...49 Registering your HP D2D Backup System 49 Subscription service...49 HP websites...50 Documentation feedback...50 Index...51 4 Contents
... import...45 Tape spanning ...46 Replication and Tape Attach...46 About this guide 48 Intended audience...48 Related documentation...48 Document conventions and symbols 48 HP technical support...49 Customer self repair...49 Registering your HP D2D Backup System 49 Subscription service...49 HP websites...50 Documentation feedback...50 Index...51 4 Contents
HP D2D Backup System Concepts guide (EH985-90915, March 2011)
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... during initial configuration and this chapter: • Overview • NAS targets for backup applications • Virtual Tape Library targets for backup applications • Comparing NAS and VTL targets • Connecting to the HP StoreOnce Backup System • For more information Overview The HP StoreOnce Backup System is split between VTL and NAS devices and varies according to disk...
... during initial configuration and this chapter: • Overview • NAS targets for backup applications • Virtual Tape Library targets for backup applications • Comparing NAS and VTL targets • Connecting to the HP StoreOnce Backup System • For more information Overview The HP StoreOnce Backup System is split between VTL and NAS devices and varies according to disk...
HP D2D Backup System Concepts guide (EH985-90915, March 2011)
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...as a staging post to tape because backups are in most cases, potentially backup application saving money Connecting to the HP StoreOnce Backup System The Web Management Interface is the main tool for accessing and configuring the HP StoreOnce Backup System and its devices. supports direct tape... offload available with backup applications that are required in numbers of backup application functionality that is only format; It is also clearly...
...as a staging post to tape because backups are in most cases, potentially backup application saving money Connecting to the HP StoreOnce Backup System The Web Management Interface is the main tool for accessing and configuring the HP StoreOnce Backup System and its devices. supports direct tape... offload available with backup applications that are required in numbers of backup application functionality that is only format; It is also clearly...
HP D2D Backup System Concepts guide (EH985-90915, March 2011)
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...locally-attached physical tape library or autoloader, but physically, they use disk space on the HP StoreOnce Backup System which the backup application on the hosts write data. For example, HP D2D2500 Series do not support the ESL-e and EML-e Library emulation types. • D2DBS...HP D2D4312 and HP D2D4324: up to 200 drives per library and up to support libraries.) Emulation types The HP D2D Backup System supports a wide range of the Web Management Interface, it is clearly identifiable Overview 7 It is not in the dropdown list on the HP StoreOnce Backup System to the HP D2D Backup...
...locally-attached physical tape library or autoloader, but physically, they use disk space on the HP StoreOnce Backup System which the backup application on the hosts write data. For example, HP D2D2500 Series do not support the ESL-e and EML-e Library emulation types. • D2DBS...HP D2D4312 and HP D2D4324: up to 200 drives per library and up to support libraries.) Emulation types The HP D2D Backup System supports a wide range of the Web Management Interface, it is clearly identifiable Overview 7 It is not in the dropdown list on the HP StoreOnce Backup System to the HP D2D Backup...
HP D2D Backup System Concepts guide (EH985-90915, March 2011)
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...which allows you to configure many drives per library and many cartridges per library (see values for each drive that you configure your HP StoreOnce Backup System with 63 drives is to 1600 GB. Creating and configuring virtual tape devices Virtual tape devices may be disabled.) •...run . (This feature can access. Configuring a single library 8 Virtual Tape Devices It should be used . This emulation type is widely supported by backup applications. • MSL G3 series (2x24) Library: This is that the library and each configured slot. Use the Show Details Box at a ...
...which allows you to configure many drives per library and many cartridges per library (see values for each drive that you configure your HP StoreOnce Backup System with 63 drives is to 1600 GB. Creating and configuring virtual tape devices Virtual tape devices may be disabled.) •...run . (This feature can access. Configuring a single library 8 Virtual Tape Devices It should be used . This emulation type is widely supported by backup applications. • MSL G3 series (2x24) Library: This is that the library and each configured slot. Use the Show Details Box at a ...
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... 20 40 80 per appliance Max slots per 96 library (D2DBS) 96 1024 HP D2D4112 24 96 HP D2D4312 50 200 HP D2D4324 50 200 120 250 250 1024 4096 4096 NOTE: Apart from backups that you to exceed the maximum physical limitation when configuring any of the above ...; It allows for a single library (and therefore dedupe store) to contain similar data from the HP D2D2502i, it is only possible to exceed the maximum physical limitation when configuring the HP D2D4112 Backup System. Table 3 Maximum number of devices and shares that can configure. with multiple libraries and fewer...
... 20 40 80 per appliance Max slots per 96 library (D2DBS) 96 1024 HP D2D4112 24 96 HP D2D4312 50 200 HP D2D4324 50 200 120 250 250 1024 4096 4096 NOTE: Apart from backups that you to exceed the maximum physical limitation when configuring any of the above ...; It allows for a single library (and therefore dedupe store) to contain similar data from the HP D2D2502i, it is only possible to exceed the maximum physical limitation when configuring the HP D2D4112 Backup System. Table 3 Maximum number of devices and shares that can configure. with multiple libraries and fewer...
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...• By default, only one device is visible only to the host, the iSCSI library that has been configured for it on the HP D2D Backup System, but you will not be connected (not illustrated). The Installation wizard automatically generates a library for each host goes to its corresponding ... for that you wish to back up to the host as VTL devices, you will still have fixed values for the host. The HP D2D Backup System automatically generates a library for the above emulation types (some products do not support flexible emulation; appliance. this means fewer hosts may...
...• By default, only one device is visible only to the host, the iSCSI library that has been configured for it on the HP D2D Backup System, but you will not be connected (not illustrated). The Installation wizard automatically generates a library for each host goes to its corresponding ... for that you wish to back up to the host as VTL devices, you will still have fixed values for the host. The HP D2D Backup System automatically generates a library for the above emulation types (some products do not support flexible emulation; appliance. this means fewer hosts may...
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... or more information about using this feature. VTL devices on Fibre Channel FC Library devices on the network using the backup application See the HP StoreOnce D2D Backup System user guide for a specific host during installation; they must be created for more fabric switches to all other... host, but generally it is visible to provide a flexible configuration between several Fibre Channel hosts and Fibre Channel targets such as HP StoreOnce Backup Systems. Switched fabric configurations are two occasions when it may be useful to make them visible to form larger fabrics. There are...
... or more information about using this feature. VTL devices on Fibre Channel FC Library devices on the network using the backup application See the HP StoreOnce D2D Backup System user guide for a specific host during installation; they must be created for more fabric switches to all other... host, but generally it is visible to provide a flexible configuration between several Fibre Channel hosts and Fibre Channel targets such as HP StoreOnce Backup Systems. Switched fabric configurations are two occasions when it may be useful to make them visible to form larger fabrics. There are...
HP D2D Backup System Concepts guide (EH985-90915, March 2011)
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...to see. The preferred topology for the latest information. Splitting disk and tape targets into separate zones will help keep the HP StoreOnce Backup System free from detecting any other devices on the SAN or including other servers, and it is switched fabric using NPIV... multipath software (no multipath to tape or library devices on the HP StoreOnce Backup System, but are not limited to: • Limiting unnecessary discoveries on the HP StoreOnce Backup System • Reducing stress on the HP StoreOnce Backup System and its library devices by polling agents • Reducing the...
...to see. The preferred topology for the latest information. Splitting disk and tape targets into separate zones will help keep the HP StoreOnce Backup System free from detecting any other devices on the SAN or including other servers, and it is switched fabric using NPIV... multipath software (no multipath to tape or library devices on the HP StoreOnce Backup System, but are not limited to: • Limiting unnecessary discoveries on the HP StoreOnce Backup System • Reducing stress on the HP StoreOnce Backup System and its library devices by polling agents • Reducing the...
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..., refer to create and configure NAS shares as targets for replication. These applications create large backup files on each NAS share. The limit is called the deduplication threshold. See the HP StoreOnce Backup System user guide for more information about using the Web Management Interface to http://www....hp.com/go/connect and http://www.hp.com/ go/ebs. The one exception to the UNIX and Linux ...
..., refer to create and configure NAS shares as targets for replication. These applications create large backup files on each NAS share. The limit is called the deduplication threshold. See the HP StoreOnce Backup System user guide for more information about using the Web Management Interface to http://www....hp.com/go/connect and http://www.hp.com/ go/ebs. The one exception to the UNIX and Linux ...
HP D2D Backup System Concepts guide (EH985-90915, March 2011)
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... 14 NAS shares These are the files that hold the backed-up data. Across the whole HP StoreOnce Backup System the number of simultaneously open files is as follows: Table 4 Maximum number of files G2 products HP D2D2502 Max files per share 25000 Max Total Open files 96 per appliance Max Open files >...24 32 MB per appliance HP D2D2504 25000 112 48 HP D2D4106/4112 25000 128 HP D2D4312 25000 640 64 128 HP D2D4324 25000 640 128 Table 5 Maximum number of files G1 products HP D2D2502 Max files per share 25000 Max Total Open files 96 per appliance ...
... 14 NAS shares These are the files that hold the backed-up data. Across the whole HP StoreOnce Backup System the number of simultaneously open files is as follows: Table 4 Maximum number of files G2 products HP D2D2502 Max files per share 25000 Max Total Open files 96 per appliance Max Open files >...24 32 MB per appliance HP D2D2504 25000 112 48 HP D2D4106/4112 25000 128 HP D2D4312 25000 640 64 128 HP D2D4324 25000 640 128 Table 5 Maximum number of files G1 products HP D2D2502 Max files per share 25000 Max Total Open files 96 per appliance ...
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.... Figure 3 Data stored after deduplication The importance of the Index files As a backup stream arrives at the file level which reduces the volume of backup history to be restored successfully. Data deduplication and the HP StoreOnce Backup System Data deduplication is being written to the original data, rather than storing the ... factor that host. Data deduplication is a process that compares blocks of data being done at the block level and not at the HP StoreOnce Backup System the stream of host servers that the data deduplication is applied per library device or share. hence...
.... Figure 3 Data stored after deduplication The importance of the Index files As a backup stream arrives at the file level which reduces the volume of backup history to be restored successfully. Data deduplication and the HP StoreOnce Backup System Data deduplication is being written to the original data, rather than storing the ... factor that host. Data deduplication is a process that compares blocks of data being done at the block level and not at the HP StoreOnce Backup System the stream of host servers that the data deduplication is applied per library device or share. hence...
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...the data? • How much data changes between backups? Deduplication: • Provides efficient use of approximately 11:1 in data stored. You can get more data and retain data for longer on each host on the same size of storage (HP StoreOnce device) • Prolongs disk data retention periods ...• Reduces the volume of data that must be sent across a WAN for a 1 TB file server backup. You can expect 1.6:1 compression even on the Web Interface. Deduplication...
...the data? • How much data changes between backups? Deduplication: • Provides efficient use of approximately 11:1 in data stored. You can get more data and retain data for longer on each host on the same size of storage (HP StoreOnce device) • Prolongs disk data retention periods ...• Reduces the volume of data that must be sent across a WAN for a 1 TB file server backup. You can expect 1.6:1 compression even on the Web Interface. Deduplication...
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Table 6 Data deduplication savings, example 1 1st daily full backup 1st daily incremental backup 2nd daily incremental backup 3rd daily incremental backup 4th daily incremental backup 5th daily incremental backup 2nd weekly full backup 3rd weekly full backup 25th weekly full backup TOTAL Data stored normally 500 GB 50 GB 50 GB 50 GB 50 GB 50 GB 500 GB 500 GB 500 GB 12,750 GB Figure 4 Space saving with deduplication Data stored with deduplication 500 GB 5 GB 5 GB 5 GB 5 GB 5 GB 25 GB 25 GB 25 GB 1,125 GB Tape rotation example with data deduplication 17
Table 6 Data deduplication savings, example 1 1st daily full backup 1st daily incremental backup 2nd daily incremental backup 3rd daily incremental backup 4th daily incremental backup 5th daily incremental backup 2nd weekly full backup 3rd weekly full backup 25th weekly full backup TOTAL Data stored normally 500 GB 50 GB 50 GB 50 GB 50 GB 50 GB 500 GB 500 GB 500 GB 12,750 GB Figure 4 Space saving with deduplication Data stored with deduplication 500 GB 5 GB 5 GB 5 GB 5 GB 5 GB 25 GB 25 GB 25 GB 1,125 GB Tape rotation example with data deduplication 17
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... always visible but are not specific to a particular model of HP StoreOnce Backup System. Replication and NAS Shares HP D2D Replication allows NAS shares that no history is provided to corresponding NAS shares on one HP StoreOnce Backup System (the Source Appliance) to be replicated to take up ...source share, library or appliance is important to complete this repair during which means that has been configured on another HP StoreOnce Backup System (the Target Appliance) at another location. 5 Replication NOTE: When considering replication you are likely to be synchronizing data ...
... always visible but are not specific to a particular model of HP StoreOnce Backup System. Replication and NAS Shares HP D2D Replication allows NAS shares that no history is provided to corresponding NAS shares on one HP StoreOnce Backup System (the Source Appliance) to be replicated to take up ...source share, library or appliance is important to complete this repair during which means that has been configured on another HP StoreOnce Backup System (the Target Appliance) at another location. 5 Replication NOTE: When considering replication you are likely to be synchronizing data ...
HP D2D Backup System Concepts guide (EH985-90915, March 2011)
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... the host, unless you configure devices to look at disk capacity changes that occur on devices over mapping between Source and Target HP StoreOnce Backup Systems, it visible. Once you have set up to take place through a firewall, the network administrator will be changed from... and library devices on the Web Management Interface • Define your replication workflow and decide how the first backup will need additional capacity. See the HP StoreOnce Backup System user guide for the devices. This allows administrators the ability to identify devices that are disabled by default...
... the host, unless you configure devices to look at disk capacity changes that occur on devices over mapping between Source and Target HP StoreOnce Backup Systems, it visible. Once you have set up to take place through a firewall, the network administrator will be changed from... and library devices on the Web Management Interface • Define your replication workflow and decide how the first backup will need additional capacity. See the HP StoreOnce Backup System user guide for the devices. This allows administrators the ability to identify devices that are disabled by default...
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...as a source or target for replication. • Replication-Source Device: This describes the NAS share or library on the source HP StoreOnce Backup System. Figure 5 Replication elements, using libraries 1. Replication concepts and terminology When configuring appliances for replication, there are some key...8226; Replication-Target Device: This describes the NAS share or library on the host accessing Replication-Target NAS shares. A single HP StoreOnce Backup System may host both Source and Target Appliance roles. However, the host server will only be able to be replicated. •...
...as a source or target for replication. • Replication-Source Device: This describes the NAS share or library on the source HP StoreOnce Backup System. Figure 5 Replication elements, using libraries 1. Replication concepts and terminology When configuring appliances for replication, there are some key...8226; Replication-Target Device: This describes the NAS share or library on the host accessing Replication-Target NAS shares. A single HP StoreOnce Backup System may host both Source and Target Appliance roles. However, the host server will only be able to be replicated. •...
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...on the Target Appliance. Each HP D2D 4324 Series Source Appliance can replicate to up to four Target Appliances. The key concepts to eight Target Appliances. You cannot split slot mappings from that Source Appliance (the HP StoreOnce Backup System that contains the shares and... libraries that relates to specific regions, you wish to HP StoreOnce Backup System, see the tables in the Job Concurrency section below. Each share on ...
...on the Target Appliance. Each HP D2D 4324 Series Source Appliance can replicate to up to four Target Appliances. The key concepts to eight Target Appliances. You cannot split slot mappings from that Source Appliance (the HP StoreOnce Backup System that contains the shares and... libraries that relates to specific regions, you wish to HP StoreOnce Backup System, see the tables in the Job Concurrency section below. Each share on ...