DNA is itself a four-letter code for passing along information about an organism. DNA molecules are made from four types of bases, or nucleotides, each identified by a letter: adenine (A), thymine (T), guanine (G) and cytosine (C). They are the basis of all DNA code.
Helium drives don't need a breather hole to equalize pressure between the interior of a drive and the ambient air pressure. On air-drives the ambient air moves through a filter, but no filter is perfect. Helium drives are sealed at the factory so there's no way external contaminants can enter the drive. With lower running temps and a sealed enclosure, HGST expects to see significantly improved reliability.
Brands
Acer, Blixem, Fanxiang, Fledging, FYUU, GIGABYTE, Inland, KingSpec, Kingston, Leven, ORICO, PNY, Sabrent, Silicon Power, TEAMGROUP, Timetec, and on and on.
Crucial (aka Micron)
HGST is a now-discontinued Western Digitial sub-brand.
SK Hynix (part of the South Korean chaebol SK Group)
The study bluntly states that conventional magnetic recording (CMR) drives are more reliable than newer shingled magnetic recording (SMR) drives, which have overlapping tracks. SMR drives also offer worse benchmark performance than CMR drives and have recently been a hotbed of controversy.
Generally, the annualized failure rate (AFR) data follows the “bathtub curve.” Some hard drives will fail almost immediately after being put into service. After those defective units are replaced, a fleet of spinning drives will experience very low failure rates until they’ve been used for a couple of years. That’s when the failure rate again increases, revealing which drives are the most reliable.
Seagate drives tend toward higher failure rates, with some 12-14TB models hitting an AFR of 4-5%.On the other hand, Seagate drives are also cheaper
Reliability (in order): WD -> HGST -> Toshiba -> Seagate | WD is the most reliable drive
DAS = direct-attached storage - Thumb drives, internal hard drives, portable drives—these products plug into your computer, so they are considered direct-attached storage.
A DAS device plugs into your computer, a NAS device connects to your local network. NAS are far slower than DAS.
In 2023, Western Digital shut down remote access for My Cloud and prompted users to manually enable LAN access. Those who failed to enable LAN were locked out of My Cloud and couldn't access their files.
A PCI Express expansion card that served as a high-speed uptick from a Serial ATA hard drive or solid-state drive (SSD). It was meant for desktop-PC upgraders looking for the most possible speed from a single boot drive—more than any one SATA-based SSD could provide—but who didn’t have a late-model motherboard with a slot for the emerging “M.2” form factor of SSDs. (That includes, well, most people running a desktop PC more than a year old.)
In NAND storage, density, durability, and performance form the three points of the typical "iron triangle" that companies attempt to optimize. It's a classic case of a "You can have any two of these three features" scenario. We can build very durable NAND with incredible performance and low density (single-level cell, abbreviated SLC) or NAND with excellent density and low durability and performance (quad-level cell, abbreviated QLC). Companies are now exploring penta-level cell (PLC) NAND, but it's still not clear if such designs are commercially viable.
Windows 10 Insider Preview Build 20226 - Settings > System > Storage > Manage disks and volumes > Properties (where the Drive Health information is located).
CD - Conventional CDs are a terrible way to store data
DVD
BD - Based on tests, manufacturers claim lifespans in the 1-3 century range. For maximum data density, you can pick up archival Blue Rays for about 2.5 gigabytes per dollar, with a projected lifespan of 200 years. Accelerated aging tests aren’t a sure thing, but it’s probably safe to count on them for a century or so. As a bonus, unlike magnetic tape, they require no special equipment to read and write, so startup costs are minimal.
Proton Drive for Windows allows you to sync any folder between your Windows desktop and the cloud. Your files are encrypted before being uploaded to our secure cloud servers. If you change, add, or remove a file in your desktop’s synchronized folder, those changes will be reflected in Proton Drive.
A Hard Disk Drive for the IBM 305 RAMAC, the first IBM 'SUPER' computer released in September 1956.
This HDD weighed over a ton and stored an "astonishing" 5 MB of data. (= 0.005 GB = 0.000005 TB)
In other words, if you have one of those old original Apple iPhones from 2009 with only 32 GB of storage, it holds 6400 times as much data as this huge drive from 1956.
In other words, if you have a computer with a hard drive containing 2 TB (= 2000 GB = 2000000 MB) of storage, it holds 400000 times as much data as this huge drive from 1956.
Disk Drives
= HDD
Virtual Storage = Cloud Storage (on-line virtual disk space)
A Hard Disk Drive for the IBM 305 RAMAC, the first IBM 'SUPER' computer released in September 1956.