On Wed, 18 Dec 2013 12:00:50 -0600, Tim Chase <python.l...@tim.thechases.com> wrote:
>On 2013-12-18 09:49, dick wrote: >> Don't forget that most hard disks have an option to cache the write >> data. This is a 'feature' that allows the manufacturers to claim >> better write performance. You can't be sure when the data is written >> to the disk if that option is in play. > >However, my understanding is that they have a small on-drive >battery/capacitor that stores sufficient energy for the cached >write(s) to complete in the event the system's power abruptly cuts >off. > >Granted, this is purely hearsay, as it's been a long time since I >mucked around with hardware much. > >-tkc > > The drives may have something like that now, but they didn't have any power down flush capability when I was working for WD. Of course, that was 15 years ago... Dick -- https://mail.python.org/mailman/listinfo/python-list
