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As I understand it they've borrowed techniques from SSD firmware. Random writes are written to a linear cache area of the drive and transparently remapped. When
by zlynx 6y ago
As I understand it they've borrowed techniques from SSD firmware. Random writes are written to a linear cache area of the drive and transparently remapped. When the drive gets idle time it will rewrite the SMR zones where those blocks are supposed to go.
As a result the write speed of the drive is even faster than a non-SMR drive until the cache area fills up. If your workload does not try to write gigabytes of random junk without giving the drive any idle time, it will work great.
- kasabali 6y ago> As a result the write speed of the drive is even faster than a non-SMR drive until the cache area fills up I'm interested if there's a benchmark showing that?
- NullPrefix 6y agoCould the cache be flash based?
- kasabali 6y agoNo, cache is reserved as a non-SMR area on platters.
- alliao 6y agocan't they employ this technology for CMR drives? in theory the window of time it takes to write will be even smaller...
- Nursie 6y agoWeren't the "Hybrid" drives just that?
- tracker1 6y agoLet's re-encode some video files and see how that works out... edit: or bring down some large CAD files from the server to work on locally... The fact is, it's labelled a performance drive, much like the red drives... SMR should not even be an option here... sure add the extra smart caching/remapping, but you still want performance for larger failes.