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But the delete still requires the "deleted" flag to be updated in the
DB and thus still requires a write to the drive. And since data is
read/written in blocks instead of individual bytes, the whole block is
written....Perhaps SSDs have the intelligence to only actually write
the bytes that changed, I don't know.
Still, as I understand it, most enterprise SSD's have basically double
the flash memory required for their rated capacity; giving them plenty
of extra space to use for wear-leveling.
Charles
On Tue, Sep 27, 2011 at 5:27 PM, John Jones <chianime@xxxxxxxxx> wrote:
But keep in mind how often data actually needs to be rewritten in our
environment. Unless you zero out deleted records or RGZPFM them into
oblivion a deleted record doesn't get overwritten.
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