Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD
Michael Stone wrote:
> On Mon, Jan 03, 2022 at 08:42:29AM -0300, Jorge P. de Morais Neto wrote:
> > Indeed I use such high compression to prolong SSD lifetime.
>
> This is probably misguided and useless at best, at worst you're causing
> additional writes because compressed data is generally hard to modify in
> place without rewriting substantial portions. Concerns about SSD life are
> generally overblown unless you've got really unusual usage patterns (in
> which case compressing things is unlikely to make a difference).
SSDs don't modify in place. The compression is probably good for
overall bandwidth of I/O, depending on CPU utilization.
> For reference, my main desktop which tracks debian unstable and gets pretty
> much constant updates, does package builds, etc., has after several years
> used...2% of its primary SSDs write capacity. Most modern SSDs will never be
> used anywhere close to their limits before being discarded as functionally
> obsolete. Just don't worry about it and focus on other things.
This is largely true on desktops and laptops, not so true on
servers.
-dsr-
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