HP D2D Library with StoreOnce Duplication
We recently talked in our blog about the HP VLS9200 Virtual Tape Library, which is designed to implement hard disk backup on a large enterprise SAN. In addition to this system, HP also offers junior and middle class disk backup systems of the D2D series, which have been using the StoreOnce online deduplication technology developed by HP Labs since last summer.
The main difference of StoreOnce from similar solutions of other vendors is selective indexing of backups (sparse indexing) and their breakdown when analyzing into segments of variable length (average segment size is 4 Kbytes), therefore this technology provides a reduction in the size of backup copies up to 20 times, as well as thanks to a more compact index, it significantly reduces the computational capacity of the deduplication device and its I / O bandwidth.
Like the VLS9200, the hardware foundation of the HP D2D is the HP ProLiant DL rack-mount servers that run Linux. In the older HP D2D 43XX models, the HP ProLiant DL370 four-unit server with 16 full-size internal SATA drives connects up to three external 12-disk shelves in which the drives are integrated into a RAID 6 array using the RAID controller of the main module. Dual-megabyte D2D4324 cbits are equipped with two 10 Gigabit Ethernet ports and two eight-bit Fiber Channel ports. The first model is scaled up to 36 TB of usable capacity, and the second is up to 72 TB. The performance indicators for D2D4312 and D2D4324 are 2.4 and 4 TB / hour, respectively. These libraries can emulate up to 50 tape libraries, 200 drives and 51200 LTO cartridges. CIFS / NFS support allows you to use HP D2D also as a file storage.
HP D2D systems can be used for backups to SANs built on both Fiber Channel and iSCSI. Another scenario for using HP D2D is to organize backup in remote offices. At a remote site, a low-end system is installed (for example, a four-disk D2D 2500) and deduplicated StoreOnce backups from it are asynchronously replicated to the central office, where they are recorded on the D2D43XX and transferred as an option to tape. In this scenario, by reducing the volume of copies, StoreOnce can use relatively slow IP communication channels.
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HP also offers the StorageWorks Replication Manager utility for centralized management and monitoring of D2D systems at remote sites. One administrator in the center can manage the backup of 50 branches. HP also developed an Open Storage Standard based plugin to integrate D2D with well-known Symantec Backup Exec and NetBackup backup packages, with which it is convenient to track the replication of backups between sites. In addition to these two packages, HP D2D supports HP Data Protector, CA ArcServe, and EMC / Legato NetWorker and is capable of backing up Windows, Linux, HP-UX, and Solaris 10 computers.
The main difference of StoreOnce from similar solutions of other vendors is selective indexing of backups (sparse indexing) and their breakdown when analyzing into segments of variable length (average segment size is 4 Kbytes), therefore this technology provides a reduction in the size of backup copies up to 20 times, as well as thanks to a more compact index, it significantly reduces the computational capacity of the deduplication device and its I / O bandwidth.
Like the VLS9200, the hardware foundation of the HP D2D is the HP ProLiant DL rack-mount servers that run Linux. In the older HP D2D 43XX models, the HP ProLiant DL370 four-unit server with 16 full-size internal SATA drives connects up to three external 12-disk shelves in which the drives are integrated into a RAID 6 array using the RAID controller of the main module. Dual-megabyte D2D4324 cbits are equipped with two 10 Gigabit Ethernet ports and two eight-bit Fiber Channel ports. The first model is scaled up to 36 TB of usable capacity, and the second is up to 72 TB. The performance indicators for D2D4312 and D2D4324 are 2.4 and 4 TB / hour, respectively. These libraries can emulate up to 50 tape libraries, 200 drives and 51200 LTO cartridges. CIFS / NFS support allows you to use HP D2D also as a file storage.
HP D2D systems can be used for backups to SANs built on both Fiber Channel and iSCSI. Another scenario for using HP D2D is to organize backup in remote offices. At a remote site, a low-end system is installed (for example, a four-disk D2D 2500) and deduplicated StoreOnce backups from it are asynchronously replicated to the central office, where they are recorded on the D2D43XX and transferred as an option to tape. In this scenario, by reducing the volume of copies, StoreOnce can use relatively slow IP communication channels.
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HP also offers the StorageWorks Replication Manager utility for centralized management and monitoring of D2D systems at remote sites. One administrator in the center can manage the backup of 50 branches. HP also developed an Open Storage Standard based plugin to integrate D2D with well-known Symantec Backup Exec and NetBackup backup packages, with which it is convenient to track the replication of backups between sites. In addition to these two packages, HP D2D supports HP Data Protector, CA ArcServe, and EMC / Legato NetWorker and is capable of backing up Windows, Linux, HP-UX, and Solaris 10 computers.
Source: https://habr.com/ru/post/116353/
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