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Do you mean a type of spinning disk that also has flash memory for caching? I thought spinning disks normally used volatile memory for the cache?
by anfractuosity 5y ago
Do you mean a type of spinning disk that also has flash memory for caching? I thought spinning disks normally used volatile memory for the cache?
- jcrawfordor 5y agoNo, platter drives usually don't have nonvolatile cache although it's hard to say for sure. Enterprise drives are more likely to. The bigger issue with spinning drives is that they move data around the platters in ways not disclosed by the manufacturers, including both optimizations (writing near heads) and error corrections like ending use of problematic parts of the platter. These all leave bits of data in "non-addressable" parts of the platter.
- anfractuosity 5y agoAh, that's interesting. I wonder how hard it'd be to find these areas of the disk, I wonder if the location of them is stored in some kind of non volatile memory, so the disk can easily find them.