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Is the status quo on drive firmware lying about what's actually been flushed to media still as terrible as it was, oh, twenty years ago? A friend used to work
by KennyBlanken 4y ago
Is the status quo on drive firmware lying about what's actually been flushed to media still as terrible as it was, oh, twenty years ago?
A friend used to work for Apple and said that one of the reasons they had apple-specific versions of various mass market SCSI and IDE drives was because Apple's firmware actually flushed data to disk when told to do so, and didn't lie about whether data was flushed or not.
- dktoao 4y agoIf there is un-written cached data there is a capacitor bank that allows this data to be quickly written to non-volatile flash and rw heads to be retracted in the event of power loss. They test this feature pretty heavily, esp. in enterprise drives. Source: used to work for an HDD manufacturer. So, they might be lying to you but it is pretty useless information on for modern drives.
- colejohnson66 4y agoBasically, "flushed" means safe. Whether it's written to internal DRAM/SRAM (with power-loss prevention), NV flash, or the actual platter is irrelevant. When in history did the lie start to not matter?