Backblaze 2022 SSD Drive Stats

https://www.backblaze.com/blog/ssd-edition-2022-drive-stats-review/

by crazydoggers • 3 years ago

35 8 3 years ago

ericpauley• 3 years ago

The obvious question is what are the failures? While it may not matter to BB in this case, a drive going read-only is far less of an issue than losing data.

rkagerer• 3 years ago

For what it's worth the only SSD I've had that failed into a readonly state was (IIRC) an Intel one. Had others fail in worse ways (and some Pacer drives that just silently corrupted your data - proved this out with a test program I wrote that filled the disk with pseudorandom bits and read them back).

bartvk• 3 years ago

I always do this with new USB sticks. Write one random file, fill the drive with copies and then test for the checksum, for example for a 16 gig thumbdrive:

    $ cd /path/to/thumbdrive
    $ dd if=/dev/urandom of=test.bin bs=1000000 count=100
    $ for i in $(seq 1 160); do echo "Writing file $i"; cp test.bin test$i.bin; done
    $ md5 test.bin
    MD5 (test.bin) = 0d3c4fe338109b09b61fcea3e11b0e4b 
    $ ls *.bin | xargs md5 | grep -v 0d3c4fe338109b09b61fcea3e11b0e4b

I'd be happy to hear if there's a oneliner for this, though.

justsomehnguy• 3 years ago

The most important part, which I missed at first because I rushed to the graphs:

> We started using SSDs as boot drives beginning in Q4 of 2018. Since that time, all new storage servers and any with failed HDD boot drives have had SSDs installed. Boot drives in our environment do much more than boot the storage servers. Each day they also read, write, and delete log files and temporary files produced by the storage server itself

IMO it's very light load which usually doesn't wear the drive much. [0]

It would be more interesting if they provided wear (as reported by the drive) and TBW values.

[0] Anecdata: a pair of Samsung 860 Pro 512Gb SSDs, apparently running LUKS, still had 45% endurance after 4 years (of unknown load though).

Havoc• 3 years ago

Wow they’re keeping their drives quite cool. Everything I’ve got at home is much toastier

Backblaze 2022 SSD Drive Stats

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