11-03-2021, 12:39 PM
(This post was last modified: 11-03-2021, 01:20 PM by Dendrocalamus64.)
The eMMC in my PBP #2 went from reporting
to
in a few days of little use. Since 0x01 is 0-10%, it went from 80-90% to 100-110% estimated lifespan used.
That was after I switched to zram & turned off web browser disk cache. This made me wonder if there was something left in the background writing heavily to it.
We can use dumpe2fs to check the total data ever written to the filesystem.
Rockpro64 128GB emmc root fs Lifetime writes: 687 GB
PBP2 64GB emmc root fs: Lifetime writes: 58 GB
IIRC PBP2 has the same filesystem it came with. People typically assume an emmc can endure around 3000 write cycles, which would be 192 TB written to a 64 GB card.
I don't think it's just swap, some of them fail faster than others, and people should keep an eye on the life estimates besides just making backups.
Code:
eMMC Life Time Estimation A [EXT_CSD_DEVICE_LIFE_TIME_EST_TYP_A]: 0x09Code:
eMMC Life Time Estimation A [EXT_CSD_DEVICE_LIFE_TIME_EST_TYP_A]: 0x0bThat was after I switched to zram & turned off web browser disk cache. This made me wonder if there was something left in the background writing heavily to it.
We can use dumpe2fs to check the total data ever written to the filesystem.
Rockpro64 128GB emmc root fs Lifetime writes: 687 GB
PBP2 64GB emmc root fs: Lifetime writes: 58 GB
IIRC PBP2 has the same filesystem it came with. People typically assume an emmc can endure around 3000 write cycles, which would be 192 TB written to a 64 GB card.
I don't think it's just swap, some of them fail faster than others, and people should keep an eye on the life estimates besides just making backups.
