Russell Coker via luv-main wrote:
http://cdn.msy.com.au/Parts/PARTS.pdf
https://en.wikipedia.org/wiki/Hybrid_drive
https://en.wikipedia.org/wiki/Shingled_magnetic_recording
Are SSHDs any good?
-speed: Well SATA versions will deliver true SATA S3 data transfer rate;
but if you want real speed...... brmm, brmm then:
" Intel 750 PCI-E 400G / 1.2TB 499 / 1449 seem a better idea
-stability and data integrity "suitable for server": no idea
MSY has Seagate 8TB SSHDs for only $309.
Yes it looks like that, but on closer inspection
" 3.5" SATA Internal Hard Disk Drive"
" PRICE"
Seagate 3.5" SSHD 1TB / 2TB / 4TB / Seagate 3.5" Archive 6TB / 8TB
105/135/219/249/309"
ie Seagate 3.5" Archive is rotating-rust !
see
http://www.seagate.com/au/en/products/enterprise-servers-storage/nearline-storage/archive-hdd/
still even $219 for a 4TB SSHD seemed OK
untill I read
http://www.seagate.com/au/en/internal-hard-drives/solid-state-hybrid/desktop-solid-state-hybrid-drive/
That's cheaper
than a 6TB disk using regular technology, suspiciously cheap. I'm guessing
that they use something like Shingled recording to improve the storage:price
ratio and use the SSHD caching to allow decent performance without the OS
optimising write patterns for it.
So basicly a 'rotating rust' SATA drive with a "ginormous" cache ?
regards Rohan McLeod
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