On 10/01/2022 20:52, Josh Fisher wrote:
That drive only has an 80 TBW endurance. For LTO 6 with compression,
that's maybe 20 full tapes written. It won't last long as a cache drive.
Indeed it didn't ... it lasted three months!
To be fair I wasn't intending to use it long term -- it was a cheap
consumer drive I threw in the server to see if an SSD cache was a viable
solution to stop shoe-shining.
For a low cost drive, I suggest something like the Micron S650DC, which
is a medium endurance 400 GB SAS drive with a 7000 TBW endurance. It is
a cheap (< $200 US) drive that should last for at least 1600 LTO6 tapes.
It looks like the S650DC isn't available from my usual sources, but I've
picked up a used (2% write endurance, used as a hot spare) 800GB Samsung
SM1625 to replace the dying Crucial.
Thanks for the suggestions, I had no idea high-endurance SAS SSDs
existed, though I should probably have guessed!
The Samsung is rated for 24PB sequential-write or 10PB random-write, so
I expect it'll last a fair while.
Thanks,
Phil.
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