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White Papers, etc

Falconstor's more efficient replication

posted on 19 July 2008 09:10


MicroScan sends disk sectors not tracks across the wire

FalconStor says storage array-based replication often sends disk tracks across the wire when replicating changes from one array to another. Its own MicroScan technology only sends the changed data in units of disk sectors, 512 bytes, and not the much larger tracks.

MicroScan is vendor-agnostic, allowing it to work with any standard storage array. It can be applied to any data source.

An example is an application that writes a small change of 512 bytes or less. A file system actually writes 8,000 bytes. When replicating the changes the drive array may send an entire 32,000 byte disk track that includes the altered data. By operating at the sector level MicroScan only sends the minimal disk data unit, a 512 byte sector, which it says, is 64 times more efficient in bandwidth terms.

The downloadable 4-page FalconStor white paper explains how this works.

[B&F staff.]

Download file: MicroScan_Tech_WP_LR.pdf


tags:  replication