The limits of RAID: Availability vs durability in archives
There’s a strong tendency in storage to go for the one-size-fits-all approach. Nobody wants to manage two systems when one will do. But you need to understand exactly what your use case requires – and ensure the critical success factors are well implemented. That’s the case with RAID arrays and archiving. Until about 5 years ago, you had two choices for enterprise archives: tape silos or RAID arrays. Tape silos are still a low-cost way to archive massive amounts of data, but many enterprises look at RAID arrays – especially fully depreciated ones – and think they can save money by re-purposing them.