Ahybrid array is a form ofhierarchical storage management that combineshard disk drives (HDDs) withsolid-state drives (SSDs) forI/O speed improvements.
Hybrid storage arrays aim to mitigate the ever increasing price-performance gap between HDDs andDRAM by adding a non-volatile flash level to thememory hierarchy .[ 1] cache for desktop or laptop computers, or can be more complex as configurations fordata centers andcloud computing .
Some commercial products for building hybrid arrays include:
Adaptec demonstrated the MaxIQ series in 2009.[ 2] Apple'sFusion Drive Linux software includesbcache ,dm-cache , andFlashcache (and its forkEnhanceIO ).Condusive'sExpressCache is marketed for laptops. EMC Corporation VFcache was announced in 2012.[ 3] [ 4] Fusion-io acquired ioTurbine in 2011,[ 5] [ 6] Hitachi Accelerated Flash Storage (HAFS) used together with the Hitachi Dynamic Tiering software[ 7] IBM Flash Cache Storage Accelerator (FCSA) server software[ 8] Intel'sSmart Response Technology for desktop Intel'sCache Acceleration Software for servers and workstations LSI CacheCade software for their controllers[ 9] Marvell 's HyperDuo controllers[ 10] Microsoft'sAutomated Tiering (since Windows 2012 R2) NetApp 's Flash Cache, Flash Pool, Flash Accel[ 11] Oracle Corporation markets products such asExadata Smart Cache Flash, and the FS1 flash storage system.[ 12] MicrosoftReadyBoost allows personal computers to useUSB flash drives (or anysolid-state media ) as cache. Nvelo DataPlex SSD caching software was announced in 2011,[ 13] Samsung in 2012.[ 14] SanDisk FlashSoft for Windows, Linux, andvSphere [ 5] Products are offered by vendors like AMIStorTrends ,[ 15] Tegile Systems ,Reduxio , andTintri .[ 16] ZFS using hybrid storage pools, are used for example in some Oracle Corporation products.[ 17] ^ Rino Micheloni; Alessia Marelli; Kam Eshghi (2012).Inside Solid State Drives (SSDs) ISBN 978-94-007-5145-3 ^ Charlie Demerjian (September 9, 2009)."Adaptec's MaxIQ caches RAIDs with SSDs" . SemiAccurate. RetrievedSeptember 6, 2024 . ^ Larry Dignan (February 5, 2012)."EMC unveils VFCache, targets Fusion-io" .Between the Lines . ZDNet. Archived fromthe original on February 6, 2012. RetrievedOctober 10, 2016 . ^ Chris Mellor (March 5, 2013)."One day later: EMC declares war on all-flash array, server flash card rivals: Rolls out XtremIO array, renamed VFCache" .The Register . RetrievedOctober 10, 2016 . ^a b "Fusion-io spins up ioTurbine, enhances server flash caching" .The Register . RetrievedOctober 10, 2016 .^ "Fusion-io buys NexGen" .theregister.co.uk . Retrieved2015-03-26 .^ "Big storage turns the tide in the hybrid flash array market" ,Computer Weekly , retrieved2015-03-26 ^ The SSD Guy (2013-08-20)."IBM Adds Server-Side Caching" . The SSD Guy. Retrieved2013-12-23 . ^ "LSI MegaRAID CacheCade Pro 2.0 Review" .storagereview.com . Archived fromthe original on 2015-04-02. Retrieved2015-03-26 .^ "Hands-on with the Marvell HyperDuo hybrid storage controller" .CNET . CBS Interactive. Retrieved2015-03-26 .^ "NetApp: Flash as a STORAGE tier? You must be joking" .theregister.co.uk . Retrieved2015-03-26 .^ Chris Mellor (September 30, 2014)."Oracle crashes all-flash bash: Behold, our hybrid FS1 arrays: Mutant flash/disk box a pillar of storage: It's axiomatic" .The Register . RetrievedOctober 10, 2016 . ^ Les Tokar (December 4, 2011)."NVELO Dataplex SSD Caching Software Review - Seven mSATA SSDs Prove An Amazing Concept" .The SSD Review . RetrievedOctober 10, 2016 . ^ Kristian Vättö (December 16, 2012)."Samsung Acquires SSD Caching Company NVELO" . AnandTech. RetrievedOctober 10, 2016 . ^ Ian Barker (2014-01-27)."AMI StorTrends 3500i offers high performance storage for smaller enterprises" . BetaNews. Retrieved2014-10-17 . ^ "Mutant array upstarts feast on EMC, NetApp's leavings" .The Register . Retrieved2015-03-26 .^ "Oracle's Flash-Friendly Sun ZFS Storage Is Ready for New SPARCs" .enterprisestorageforum.com . 3 April 2013. Retrieved2015-03-26 .
