Why do some data storage solutions perform better than others? What tradeoffs are made for economy and how do they affect the system as a whole? These questions can be puzzling, but there are core truths that are difficult to avoid. Mechanical disk drives can only move a certain amount of data. RAM caching can improve performance, but only until it runs out. I/O channels can be … [Read more...] about The Four Horsemen of Storage System Performance: I/O As a Chain of Bottlenecks
A while back, I started a series called "back from the pile" featuring interesting links from the week. Bonus points if you recognize that title reference, but just in case, you might want to watch Old George for yourself! (Warning: NSFW if language is an issue...) This week's highlights included lots about NFSv4 and IBM's new Storwize V7000. Some great networking … [Read more...] about Back From the Pile: Interesting Links, October 17, 2010
Overland Storage is showing intriguing signs of life. Once relegated to OEM tape library duty, Overland received an injection of cash and (more importantly) talent this year. Now the company is stepping up the technology behind their SnapServer NAS array by acquiring scale-out file storage company, MaxiScale. They intend to bring the scalable capacity and performance normally … [Read more...] about Overland Snaps Up MaxiScale to Scale Up Snap
Did some pNFS proponent slip a love potion into the coffee at EMC? Suddenly it's pNFS time at the company known for its reluctance to embrace file sharing and filesystems in general. The purple prose is flying, with Chad Sakac declaring himself "a big fan of the application of NFS" and Chuck Hollis extolling the "inherent simplicity and ease-of-management of NFS." The NetApp … [Read more...] about Is NFS v3 Really That Bad?
Garth Gibson, author of the seminal paper which presented the redundant array of inexpensive independent disks (RAID) to the world, has a nice quick interview over at eWeek. It's worth a read, since Gibson's long been on the forefront of storage tech. He talks about how parallel NFS (pNFS) is set to trickle down to the enterprise from the high-performance compute labs. It's … [Read more...] about Garth Gibson: Still Relevant After All These Years