As promised at the last #VMUGbe (#17) I did deliver a session for the latest #VMUGbe (#18) november 9th. Although I did switch to ‘the dark side’ in between now, I do try to keep up with some independent storage talk. One of the things I have been involved with this year, partially due to the Storage Tech Field Day 1 trip, is flash storage. What is it, who are they, what are the differences.
Click on the image for the entire slide deck
Part 1:
Basics of storage placement, from DRAM to Cloud tape. The advantages of fast and close versus slow and far away. Cost versus SLA.
Part 2:
What is FLASH? SLC, MLC, TLC, eMLC and future products like ReRAM, NRAM, PCM, …
Part 3:
Where is the Flash and who are the players.
- In Server: DRAM: in memory databases (SQL/Hadoop) or L1 cache (Nexenta) / Server side flash: tiering versus caching ( FusionIO, Micron, EMC Lightning, …) / new kids around the blocks: VNMe – SCSIe
- All Flash arrays: commodity hardware ( Kaminario) / build your own eMLC / smart filesystem flash offloading (PureStorage) / Purpose build PCIe (Violin) / and many others
- Tiered/Hybrid SAN solutions: legacy vendors (HP/DELL/EMC/…) versus startups. No RAID (NimbleStorage) / Dedupe/Compression & Offload (Tintri) / L1-L2-… offloading to disk (Nexenta) / Building blocks (Nutanix)
Part 4:
Virtualised flash solutions: VSAs could run Enterprise storage in local storage SSDs (vSphere Storage Appliance / Nexenta VSA for View).
Part 5:
What did VMware do?
- Swap to SSD (5.0)
- SMART – query your SSDs
- vSphere distributed storage
- from VAAI to VASA
- and beyond to vVols