Hi, this is Wayne again with a topic “SSDs Are Getting Even Faster – NVMe 2.0”.
We’Re used to getting revisions of computer standards fairly regularly think about how many versions of usb ddr and pci express we’ve been through, but we haven’t had to put much thought into nvme so far as there’s only been one major version of it. Until now, as the nvme 2.0 standard has just been released in case you’re out of loop, nvme or non-volatile memory, express is the protocol that pci express connected storage drives use because it’s much faster than the older sata standard. It’S enabled those gaudy four figure. Throughput numbers. You see on manufacturer spec sheets for m.2 drives and the nvme 2.0 specification is bringing some new features to the table.
So, let’s dive right in one of the major improvements is for something called zoned namespaces and that might sound like some kind of forward thinking therapy collective. But it’s actually a system designed to address some of the biggest issues with ssds. You see, even though ssds are a lot faster than old-school. Spinning hard drives, there’s a significant amount of inefficiency under the hood, because the cells in an ssd can only be written to so many times before they wear out for good. The ssd’s internal logic has to move data around in a process called wear leveling to make sure certain cells don’t exhaust their lifespans more quickly than others. Additionally, ssds can’t directly overwrite cells.
Instead, cells have to have their data erased first, and this has to be done in groups of cells. So any data in that group that the system needs to preserve must be copied to an empty area. Ssds reserve a certain amount of space called over provisioning to support these data operations, meaning a significant amount of storage is inaccessible to the user. Nvme 2.0 zoned namespaces help alleviate this situation by allowing programs to reserve specific physical areas on the ssd and write data. For that program, sequentially without zone name spaces, the ssd itself would be in charge of what data goes where, and this often results in a specific program’s data being scattered all over the drive, meaning that any changes to that data could require lots of those read copy. Delete actions that use a large amount of over provisioned space, but with zoned namespaces, a smaller physical footprint per program means the ssd won’t have to over provision as much space.
Nor do so many reads and writes meaning effectively larger drives with better endurance for the same cost, and programs could also see a performance boost from zone name spaces as ssds read and write sequential data faster than they do random data. So not only is this good for consumers, like you and me, but larger organizations should see an even greater benefit than us since, when you’re running lots of ssds in parallel, such as inside a gigantic server farm. Having that much wasted space and latency can have a significant negative impact, not to mention the direct cost of having to replace drives that wear out. The second significant benefit of nvme 2.0 that we’re going to discuss today is it’s surprising support for mechanical hard drives.
But why would it support mechanical hard drives? I mean even higher end drives, can’t come anywhere close to using the full bandwidth of plain old sata. So what gives it turns out that recent advances in hard drive manufacturing have allowed drives to read data off the platters? More quickly, partly due to improvements in the actuators that move the drive parts around and partly due to fitting more data on the platters themselves, through techniques like heat, assisted magnetic recording, which you can learn about up here, hammer time. This means that some hard drives that are just starting to hit the market can get sustained transfer rates above 500. Megabytes per second sequentially, which is comparable to sata based ssds nvme 2.0, will provide enough bandwidth to ensure newer hard drives can max out their potential, especially important in larger settings that use lots of hard drives for mass storage.
They can share data among themselves quickly. Of course, because the nvme 2.0 spec was released recently, it’ll be a while before we see products that support it, but hopefully the result will be larger, cheaper drives for your home pc and quicker more reliable access to cloud services. I just wouldn’t expect disney to slash the price of your streaming subscription with the money they’re saving on drives world doesn’t tend to work like that big. Thank you to today’s sponsor private internet access. Vpn. They help you mask your true ip address and they encrypt your traffic with reliable service and no bandwidth caps.
Pia has configurable encryption and an internet kill switch which keeps you in control of your connection. Combine it with private browsing and make websites think you’re in a different country, plus you can connect up to 10 devices at once with clients for windows, mac, android, ios and linux. Pia has also recently launched its new dedicated ip option, which offers an even smoother internet experience, while maintaining your privacy and security, with over 25 000 servers in 78 countries.
What are you waiting for? Try pia risk free for 30 days at the link below. So thanks for watching guys, if you like this video hit like hit, subscribe and hit us up in the comment section with your suggestions for topics that we should cover in the future. .