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HP StoreOnce D2D2500 Скачать руководство пользователя страница 21

Figure 20:

The difference in restore time between restoring a virtual machine from a full backup versus a restore from a full backup

and a chain of 4 incremental backups was just 14%. vRanger was configured in the LAN-Free restore mode.

For More Information

HP StoreOnce Backup System general information:

HP StoreOnce Backup System Disk Backup Application HP D2D 4312 user guide:

HP Sizing Tool:

HP StoreOnce Backup System best practices guide:

Quest vRanger general information:

Quest vRanger Evaluation Guide, Quest vRanger Deployment Guide and other documentation:

© Copyright 2011 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.

4AA3-4894ENW, Created July 2011

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Содержание StoreOnce D2D2500

Страница 1: ...ecture and backup modes 4 Change block tracking 6 Quest vRanger Active Block Mapping and HP StoreOnce Backup System Deduplication 7 vRanger resource management 7 Repositories 9 Cataloging 10 Replication 10 Integration of HP StoreOnce Backup System and vRanger 11 Licensing 11 HP StoreOnce Backup System Licensing 11 Physical installation 12 Backup job options 14 Integration with tape for long term r...

Страница 2: ...or the StoreOnce Backup System Housekeeping process to run every day vRanger backups can be integrated with backup applications that support tape if the backup data needs copying migrating from the StoreOnce Backup System to tape Understand the settings that can be tuned to configure the best performing protection solution and test the configuration in a non production environment before implement...

Страница 3: ...rithm generates an identifier hash value for each chunk that is stored in an index When an incoming chunk generates a hash value that already exists in the index the duplicate chunk is not stored again Instead a much smaller reference to the duplicate chunk is stored When a recovery is run the required data is reassembled from the unique chunks and referenced duplicate chunks Each HP StoreOnce Sha...

Страница 4: ...a protection for VMware environments delivering fast and reliable backup recovery and replication vRanger captures the entire image of a virtual machine and enables restore at the image file or application level 1 An intelligent resource manager improve backup speed by leveraging all available ESX and ESXi hosts and controlling the number of simultaneous jobs using any given resource To optimize u...

Страница 5: ...ysical machine connected to the VMware shared storage A performance advantage of the physical proxy is that it offloads the backup processes from the VMware servers and enables a LAN free backup Physical servers generally have more processing power than virtual machines so are a sensible option for large VMware installations where performance must not be effected by backups Figure 3 Physical proxy...

Страница 6: ...PIs for Data Protection VADP not by scanning the VMDK file Enabling CBT typically results in shorter backup operations and reduced resource consumption on network and storage elements It is recommended to enable CBT for all virtual machines that support it 2 To enable or disable CBT right click on any virtual machine in the My Inventory pane of vRanger and select Enable Change Tracking or Disable ...

Страница 7: ...tant to measure the end to end data compaction not just the deduplication ratio reported by the StoreOnce Backup System This is covered in more depth below vRanger resource management The vRanger Resource Manager Figure 6 enables control of the number of backup and replication of tasks to run simultaneously These controls allow fine tuning of vRanger to achieve greater throughput without impacting...

Страница 8: ... by the host to process backups it is recommended to use caution when changing this value Maximum number of tasks running per Repository 1 Bandwidth to the Repository is the main limiting factor here For the StoreOnce Backup System on a Gigabit network the recommendation is a maximum of three concurrent backups which can consume 75 percent of the bandwidth of the Repository Monitor network utiliza...

Страница 9: ... minutes 4 minutes 4 minutes 2 minutes Connectivity 2 x 1 GbE 2 x 1 GbE 2 x 1 GbE 2 x 1 GbE 2 x 1 GbE 2 x 10 GbE Max open files 24 MB per Share per appliance 32 32 48 48 64 64 64 64 128 128 Max total open files per appliance 96 112 128 128 640 Max total files per Share 25 000 25 000 25 000 25 000 25 000 Maximum concurrent vRanger backup streams per appliance 4 4 6 6 12 Repositories vRanger uses a ...

Страница 10: ... in backup job options Replication vRanger Pro edition only provides image based replication of virtual machines across LANs and WANs During vRanger replication changed data blocks are sent from the source virtual machine to a target virtual machine located at the DR site The primary considerations for replication performance are the available bandwidth and quality of connection between the two lo...

Страница 11: ...D2D2504 G2 D2D4106 G2 D2D4112 G2 D2D4312 G2 D2D4324 G2 eDelivery license physical delivery license EH990AAE EH990A EH991AAE EH991A EH999AAE EH999A EH994AAE EH994A EH984AAE EH984A EH987AAE EH987A For example a user with eighteen StoreOnce Backup Systems replicating to two D2D43 12 G2 appliances would need two sets of EH984AAE licenses The purchase of a replication license for any StoreOnce Backup S...

Страница 12: ...g is enabled by default on the StoreOnce Backup System and all the required network parameters will be set automatically For static IP addressing a manual assignment of network settings is required For IPv6 only networks the MAC address of the StoreOnce Backup System must be entered see MAC address on the label on the top of the appliance StoreOnce Backup System Discovery and Initial Set Up For Wi...

Страница 13: ...Shares and multiple vRanger Repositories To configure an StoreOnce Backup System CIFS target for use as a vRanger Repository first select the NAS page in the StoreOnce Backup System web GUI Then select the Shares tab On this select the Create Share button This opens the dialogue box to create the Share Figure 11 Figure 11 Creating the StoreOnce Backup System NAS Share for use as the vRanger Reposi...

Страница 14: ...o the StoreOnce Backup System Share If encryption is specified it will generate a backup data stream that cannot be deduplicated reducing the effective backup storage capacity Specifying encryption also adds a processing load to the vRanger backup engine If encryption is required it is recommended to use regular disk for the vRanger Repository Backup job options When configuring backup jobs to the...

Страница 15: ... VMware Tools installed and are VSS enabled Windows only Selecting this option means vRanger will request VMware tools to initiate a VSS snapshot in the guest operating system to create a recovery consistent backup Enable Active Block Mapping ABM should be enabled which will reduce the data sent to StoreOnce Backup System by not including deleted blocks in the backup stream Perform LAN free backup...

Страница 16: ...slower restores Differential runs differential just changes since last full backup job backups between full backups This will give faster backups than selecting none and generally slightly faster restores than selecting Incremental The space saving technology is one of the parameters that determine the size of the Repository required for a given backup specification The other key parameter is the ...

Страница 17: ...physical storage utilization by reclaiming space after backup data is deleted or expired by vRanger After a deletion or expiration any unique chunks are marked for removal and duplicate chunks are de referenced to the deleted data Housekeeping is governed by a back off algorithm which throttles it back to reduce its impact on other concurrent operations However there may still be some impact of ho...

Страница 18: ...ndow to be estimated based on the guidelines in Figure 7 Open Files At the end of the backup of each virtual machine vRanger will verify data integrity across all Savepoints for that virtual machine as well as expire any Savepoints in excess of the specified Savepoint count This will open all the related backup files related to that virtual machine The number of files opened for each virtual machi...

Страница 19: ...deliver an efficient high performance and robust solution for backing up and recovering small to enterprise VMware environments The joint solution is easy to manage and delivers high performance deduplicated backups with fast reliable recovery from disk This document describes implementation and best practices for an end to end solution The settings should be tuned in a non production environment ...

Страница 20: ... more CPU to the vRanger virtual or physical machine the maximum number of tasks per Repository and locally can be increased accordingly Figure 19 vRanger Resource Management To measure how much longer it takes to restore from a chain of incremental backups compared to a full backup we used a 50 GB Windows virtual machine It was restored using vRanger LAN Free option In our test case it reads the ...

Страница 21: ... StoreOnce Backup System best practices guide http bizsupport2 austin hp com bc docs support SupportManual c02511912 c02511912 pdf Quest vRanger general information http www quest com vranger Quest vRanger Evaluation Guide Quest vRanger Deployment Guide and other documentation http www quest com vranger docs Copyright 2011 Hewlett Packard Development Company L P The information contained herein is...

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