Comment Re:Are those solid state drives? (Score 2) 8
were about spinning or solid state drives.
Remember that we are dealing with an at scale system with Backblaze. Other than cache (Which I don't think typical object stores use except for the database
The SWIFT object store data centers I ran typically have 4, 5, 8 or 16 TB drives, 90+ per server, and the boot drive is typically either RAID 0 or 1, but that's the extent of "fancy stuff" for disk drives. I never saw SSD in the object store. File and Block, yes, that was the rule rather than the exception. One of my former team mates told me that the company is up past 100 tons of hard disk drives per object store silo. They have [lots and lots of] data centers.
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Recap:
Block Store == like a hard disk, a series of disk blocks are presented. Atomic changes are possible. Used for things that change a part at a time. SAN
File Store == Like a network share, a file system is presented. Atomic changes are possible Used for things that change a part at a time. NAS
Object Store == Non-Atomic - something like a porcelain sculpture. If you want to change it, you need to destroy it and make it new. Used for things that typically do not change at all, like completed video, accounting transaction snapshots, or