On Sat, 06 Jul 2013 12:48:42 +0200
MarkusGMX
(rev 1) == 7 0x008 1 34~ Percentage Used Endurance ... manpage says: "ssd - [SCSI] prints the Solid State Media percentage used endurance indicator. A value of 0 indicates as new condition while 100 indicates the device is at the end of its lifetime as projected by the manufacturer. The value may reach 255."
How accurate is this?
Note "projected by the manufacturer" is not defined in any way that will tell us how to understand that 34%. Although: http://www.crucial.com/pdf/Tech_specs-letter_Crucial_m4_ssd_v3-11-11_online.... tells that 128GB model has 72TB endurance, which translates to 40GB per day during 5 years. In other words if smartctl reads data correctly then you used in last 2 years 24.5 TB writes, or 33.5 GB per day (730 days) which from where I stand can be called a heavy usage.
Does that mean, that 34% of the SSDs lifetime is already over?
Maybe. See above.
... ~6 years is that the normal lifespan of SSDs nowadays?
It can be even shorter with heavier usage. With my usage it will be more likely that smartctl reads something wrong, or something is happening that should not, crating such high number of erase/writes cycles.
Are there other tests for Linux which tell me more about the health of this SSD?
Not that I know, but I'm new SSD owner with no really much experience with SSD. What you can do is to check your partition mount options. Other already elaborated on that, but there is one that is probably missing - "discard". Check as root does your disk support TRIM: hdparm -I /dev/sdX | grep -i TRIM (X is a drive letter) and if yes enable it with option "discard". http://en.opensuse.org/SDB:SSD_discard_%28trim%29_support#Kernel_support Article is a bit old, but even 12.3 does not enable discard by default. Just checked 'mount' and neither root of the file system, not /home have enabled option "discard". How to enable is another question: https://en.opensuse.org/SDB:SSD_performance http://forums.fedoraforum.org/showthread.php?t=277082 which is pretty new, has a lot of advices, but may have some advices that don't apply for newer computer with a lot of memory (about having swap on classic disc).
best regards ME
-- Regards, Rajko. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org