EMMC flash storage wear level
Версия от 01:58, 22 января 2016; EvgenyBoger (обсуждение | вклад) (Новая страница: «The following commands are used to get the estimated wear level of the eMMC flash storage chip used in Wiren Board 5 controllers: Mount debugfs <pre> mount -t…»)
The following commands are used to get the estimated wear level of the eMMC flash storage chip used in Wiren Board 5 controllers:
Mount debugfs
mount -t debugfs none /sys/kernel/debug/
Read the wear level estimation
cat /sys/kernel/debug/mmc0/mmc0\:0001/ext_csd | python -c 'import binascii, sys; print "~%d%% wear" % (ord(binascii.unhexlify(sys.stdin.read().strip())[0x5e])*10)' <pre> Example output: <pre> ~10% wear
The level is returned in multiplies of 10 percent. The minimum wear is 0% (new device), the maximum is supposed to be 100%.