(NOAA NATIONAL WEATHER SERVICE; FREEBIGPICTURES.COM)
(NOAA NATIONAL WEATHER SERVICE; FREEBIGPICTURES.COM)

EMC Corp. said Tuesday it has acquired TwinStrata, a Natick-based firm with investors including Avalon Ventures, to bolster its cloud strategy.

TwinStrata offers cloud storage and backup, including CloudArray, which combines onsite disk storage with cloud storage on demand.

Hopkinton-based EMC said it acquired TwinStrata in order to expand its “hybrid cloud” offerings, in which onsite storage is linked with cloud storage.

Terms of the acquisition weren’t disclosed.

TwinStrata had 40 employees as of January, and had raised $13 million in funding, including an $8 million Series B round in 2011 led by Avalon.

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