In addition, the EMC Greenplum DCA can serve as a data backup and recovery system, drawing on EMC's Data Domain storage deduplication technology. Among the appliance's tricks, its capacity can be effectively doubled, according to EMC, by using free space on an organization's SAN. Backup data can be pushed to alternative storage media, such as tape, thus freeing up space on the machine while potentially saving on the expense of using more spinning disks than necessary for storage.
The appliance also works with existing EMC storage systems' RecoverPoint feature, through which data can be rapidly moved from site to site for the purpose of, among other things, data recovery.
In its announcement, EMC emphasizes speed, capacity, and scalability as major differentiators, compared to Oracle's Exadata X2-8, the Netezza TwinFin 12, and the TeraData 2580. For example, EMC claims its system scans uncompressed data at a rate of 24GB per second and loads at a speed of more than 10TB per hour. The Oracle system, EMC will tell you, scans at 25GB per second (but only under very specific circumstances) while loading at around 5TB per hour. Netezza and TeraData both scan at 10GB per second, according to EMC. Netezza loads at 2TB per second and TeraData's numbers are "to be determined."
In terms of capacity and scalability, EMC reports that the Greenplum appliance can expand to 4,608 database cores spread over 24 racks. A single rack can hold 36TB of uncompressed data or 144TB of compressed data. That, EMC claims, represents up to three times more scalability and up to four times as many cores as competitive systems.
This article, "EMC blends Greenplum analytics with backup and recovery," was originally published at InfoWorld.com. Get the first word on what the important tech news really means with the InfoWorld Tech Watch blog.