Dot Hill buys Cloverleaf
Date: JanuaryPrice Tag: $11.5 millionSpecialty Gained: Storage virtualization
Dell buys Exanet assets
Date: FebruaryPrice Tag: $12 millionSpecialty Gained: Clustered NAS
EMC buys Greenplum
Date: JunePrice Tag: UndisclosedSpecialty Gained: Data warehousing
Dell buys Ocarina
Date: JulyPrice Tag: Undisclosed Specialty Gained: Deduplication hardware and software
IBM buys Netezza
Date: SeptemberPrice Tag: $1.78 billionSpecialty Gained: Data warehouse appliances
HP buys 3Par
Date: SeptemberPrice Tag: $2.35 billionSpecialty Gained: Enterprise storage arrays
EMC buys Isilon
Date: NovemberPrice Tag: $2.25 billionSpecialty Gained: Clustered NAS
EMC buys Bustech
Date: NovemberPrice Tag: UndisclosedSpecialty Gained: Virtual Tape Library
Quest Software buys BakBone Software
Date: NovemberPrice Tag: $55 millionSpecialty Gained: Backup and recovery, plus continuous data protection
Dell buys Compellent
Date: DecemberPrice Tag: $960 millionSpecialty Gained: SMB storage and recovery