SSD vs HDD Object Storage?
What are companies are going to use in 2019? HDDs are cheaper and bigger than Flash based storage, but is the price/speed worth it? Example: Pure Storage vs. Cloudian
Lol. AWS. Come on now
Hybrid with SSD caching.
NvME
Giant RAM disk. Yolo.
I might be biased, but it's flash based. I'm from HDD and transitioned to SSDs before I find myself where I am right now. So trust me, it's flash. Even from an energy savings and density standpoint, it has to be flash. Unless you're doing archives in the form of cold storage, it's flash. Innovation on HDDs reached a nadir a few years ago, the last I can remember is HGST decided to pump helium into them to stabilize the environment inside a disk, leading to faster access times. Problem is, SATA SSD with an m.2 form factor that used throwaway Hynix NAND wiped the floor with it in terms of throughout and IOPs. The industry has moved to NVMe. It's time enterprises upgraded their infrastructure to catch up. As adoption increases, NVMe gets cheaper as it's cheap to engineer when compared to SAS and SATA.
We just bought millions worth of Pure since we've been following a 5 year life cycle. We supposedly will never have to buy a replacement storage system. When you look past initial investment costs flash is unbeatable.
Why won’t you have to ever replace it?
Pure storage offers a subscription program called 'Evergreen'. All hardware and software is engineered to be upgradeable without the system needing a 'maintanence window'. This means we have companies who have been upgraded from SAS based systems to NVMe systems , if they chose to, without any service disruption. The bigger upgrade is the system's controller chip itself. We've gone from an Intel Broadwell on an original installation to whatever the latest flavor is available on the market. Unlike companies like NetApp or EMC who haven't figured out how to make and price systems to be upgradeable, Pure was founded on one thought: Keep it simple, stupid.
As with everything, Depends on use case.
Its absolutely worth it in an enterprise/ data center environment.