SSDs in servers deliver performance, whether measured in IOPS or GBps or latency, that is just plain impossible with disks. SSD capacity is now greater than that of performance disks. Price is the factor that still keeps many organizations away from deploying servers with SSD storage when the improved performance is not a significant benefit. The better reliability of SSD might be more important. Continue reading SSD vs HDD RAID in Servers and Storage
For years, ion has reported usable capacity of disk and SSD storage in GiB and TiB instead of GB and TB. Why? And what’s the difference? Basically, 1 GB = 1,000,000,000 bytes while 1 GiB = 1,073,741,824 bytes. That is about 7%! Look at ion‘s SR-71mach6 SpeedServer or PS StorageServer for examples of capacity reporting. You can learn more about the differences in the Continue reading Storage Capacity: TB vs TiB
The title of this series of posts is “Spinning Rust is Dead”. Well, actually it is “Spinning Rust is (almost) Dead”. Why, given all of the facts, do I say “almost“? Disks are really good at one thing: storing a LOT of data. So for backup, archival, or storing many terabytes of data that gets accessed only occasionally, disks are good. Data centers should Continue reading Spinning Rust is (almost) Dead, Part 5, Almost?
“But wait,” you say, “price and performance aren’t everything!” Really? You are correct. Reliability counts when your data is sitting on the drive. To start with, think about microscopic magnetic heads flying back and forth over platters spinning at 7,200 rpm to 15,000 rpm. Need I say more? We can compare manufacturer’s MTBF (Mean Time Between Failure) numbers, but nobody really knows how they Continue reading Spinning Rust is (almost) Dead, Part 4, SSD Power and Reliability