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from the now-you-CAN-take-it-with-you? dept.
Seagate has launched the world's first 5 TB 2.5" hard disk drives (HDDs). However, they won't fit in most laptops:
The new Seagate BarraCuda 2.5" drives resemble the company's Mobile HDDs introduced earlier this year and use a similar set of technologies: motors with 5400 RPM spindle speed, platters based on [shingled magnetic recording (SMR)] technology with over 1300 Gb/in2 areal density, and multi-tier caching. The 3 TB, 4 TB and 5 TB BarraCuda 2.5" HDDs that come with a 15 mm z-height are designed for external storage solutions because virtually no laptop can accommodate drives of that thickness. Meanwhile, the 7 mm z-height drives (500 GB, 1 TB and 2 TB) are aimed at mainstream laptops and SFF desktops that need a lot of storage space.
Seagate has also launched a 2 TB shingled solid-state hybrid drive (SSHD) with 8 GB of NAND cache and a 128 MB DRAM cache buffer. The 1 TB and 500 GB versions also have 8 GB of NAND and 128 MB of DRAM. These are the first hybrid drives to use shingled magnetic recording.
Seagate press release (for "mobile warriors" only).
(Score: 2) by Scruffy Beard 2 on Wednesday October 26 2016, @03:31PM
Your comments, while informative, don't invalidate my concept.
You are simply restating the classic "RAID is not a backup solution".
The problem with using a single disk as a back-up solution is that hard-disks will not always return correct data.* Modern drives are only rated to 10^14 bits without non-recoverable errors [seagate.com]. The works out to 125TB of data read. *(I was off by 3 orders of magnitude in saying that modern drives can't even read their entire capacity.
With my scheme, I will have to store about 5 copies of my important data. 3 in the off-site back-up server, and (optionally) 2 copies in my workstation.
Essentially, I treat the back-up server as a more capable hard-drive for back-up purposes. The beauty of it is that I don't even need to back up that server's encryption keys. If the server experiences a catastrophic failure, all of the data stored there is gone anyway (so the keys would be useless). A second backup server in a third location is an option for the truly paranoid.