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6/7/2012
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Sepaton Upgrades Backup Appliances

Sepaton DeltaStor also includes support for multi-streamed, multiplexed database backup.

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Sepaton on Wednesday introduced new software for its S2100-ES2 and S2100-DS3 backup appliances that support multi-streamed, multiplexed database backups that it said would not affect the performance of the backup or recovery of data. The company also added support for Symantec NetBackup OpenStorage features including A.I.R., Optimized Synthetics, Accelerator, and Granular Recovery Technology.

The company's new DeltaStor DBeXstream technology now includes support for multi-streamed, multiplexed Oracle, DB2, and SQL Server databases for fast backup and restore performance while also maintaining high data deduplication ratios. The new technology allows as many as 16 simultaneous streams or channels to be backed up just like a database administrator would set up backups in a tape-based environment.

In tape-based backup, administrators can structure backups for one client to many different tape drives at the same time (multi-streaming) so the backup would complete as soon as possible. Multiplexing is the process of alternately sending (interleaving) data from multiple clients to a single tape.

[ How is your data center holding up? Read State Of Data Centers: Hot, Crowded, Virtual. ]

In addition to allowing a customer to optimally deduplicate multi-streamed, multiplexed database backups, DeltaStor 6.1 now also includes the ability to detect changes to data in sub-8 KB blocks of data (8 KB is the default for Oracle databases) with no effect on the performance of the system.

Using byte-level differential deduplication, the backup process can detect changes to metadata or tags that the Oracle database changes when it writes a block and is able to deduplicate the rest of the data in the sub-8 KB block leading to high deduplication ratios. This sub-8 KB capability is an important differentiation between Sepaton's DeltaStor technology and the hash-based algorithms other vendors use. When hash-based deduplication appliances attempt to hash small sub-8 KB blocks to get better deduplication ratios, the hash table grows out of memory and ingest performance slows down and the database backup no longer fits in the backup window and the backup fails.

DeltaStor 6.1 also offers support for Auto Image Replication (A.I.R.), Optimized Synthetics, Granular Recovery of Exchange mailboxes, and NetBackup Accelerator, as well as support for AIX and SUSE Linux Enterprise Server x86-64.

Symantec OST A.I.R. provides for the automated replication between NetBackup domains. With Optimized Synthetics, the Sepaton platform can create full backups from previous backups and incremental backups at any time. The customer will perform one full backup and then perform incremental backups after that. This capability minimizes backup times, disk utilization, simplifies restores, and improves the likelihood of successful recoveries.

In addition, Sepaton now supports more granular recovery of Exchange mailboxes and Active Directory entries.

Finally, Sepaton supports and is certified for NetBackup Accelerator, a client-side data reduction feature introduced with NetBackup 7.5. NetBackup Accelerator only transmits the changed blocks in files, allowing reduced network traffic between the client and the media server and between the media server and the Sepaton backup appliance.

Deni Connor is founding analyst for Storage Strategies NOW, an industry analyst firm that focuses on storage, virtualization, and servers.

From thin provisioning to replication to federation, virtualization options let you reclaim idle disks, speed recovery, and avoid lock-in. Get the new, all-digital Storage Virtualization Guide issue of Network Computing. (Free registration required.)

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