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Samsung Announces Standards-Compliant Key-Value SSD Prototype
Samsung has announced a new prototype key-value SSD that is compatible with the first industry standard API for key-value storage devices. Earlier this year, the Object Drives working group of Storage Networking Industry Association (SNIA) published version 1.0 of the Key Value Storage API Specification. Samsung has added support for this new API to their ongoing key-value SSD project.
Most hard drives and SSDs expose their storage capacity through a block storage interface, where the drive stores blocks of a fixed size (typically 512 bytes or 4kB) and they are identified by Logical Block Addresses that are usually 48 or 64 bits. Key-value drives extend that model so that a drive can support variable-sized keys instead of fixed-sized LBAs, and variable-sized values instead of fixed 512B or 4kB blocks. This allows a key-value drive to be used more or less as a drop-in replacement for software key-value databases like RocksDB, and as a backend for applications built atop key-value databases.
Key-value SSDs have the potential to offload significant work from a server's CPUs when used to replace a software-based key-value database. More importantly, moving the key-value interface into the SSD itself means it can be tightly integrated with the SSD's flash translation layer, cutting out the overhead of emulating a block storage device and layering a variable-sized storage system on top of that. This means key-value SSDs can operate with much lower write amplification and higher performance than software key-value databases, with only one layer of garbage collection in the stack instead of one in the SSD and one in the database.
(Score: 2) by DannyB on Sunday September 08 2019, @09:19PM (2 children)
But they're not nested.
Your first pair is this . . .
<sarcasm>
<no-sarcasm>
Your second pair is malformed by having the slash in each tag.
Why is it that when I hold a stick, everyone begins to look like a pinata?
(Score: 2) by acid andy on Monday September 09 2019, @01:10PM (1 child)
You've lost me, sorry. It's valid markup. Was it a joke I didn't get?
Master of the science of the art of the science of art.
(Score: 2) by DannyB on Monday September 09 2019, @01:25PM
Yes, a joke.
Sarcasm, then No-Sarcasm considered a matched pair. One turns on sarcasm mode, the other turns it off. Obviously not how you actually write tags.
Why is it that when I hold a stick, everyone begins to look like a pinata?