Posts

Showing posts from August, 2019

Why you should always use DRAID

Hello friends - I have been a bit focussed on remote copy lately so this week I would like to shake things up a bit and provide a simple explanation as to why you should always use Distributed RAID over Traditional RAID in Spectrum Virtualize products.
Traditional RAID This is what we typically refer to as RAID in the storage industry as a whole. We aggregate drives and either stripe data or mirror it across multiple physical drives. In the Spectrum Virtualize platforms we generally support: RAID 0 - Striping data across drives for maximum performance with no redundancySince all drives hold unique data, we only write once providing best write performanceDoes not allow for any drives in the array to fail without data lossRAID 1 - Mirroring data across drives (normally 2) to provide redundancyWrites the same data set across a pair of drives requiring data to be written twiceAllows for one drive in the mirrored set to fail without losing dataRAID 5 - Striping data across drives providing …