How to get hard disk information from /proc and/or /sys
22,125
Solution 1
This is Answer
cat /sys/block/sda/size
Above file will returns some number like 312581808, then this number need to multiply by 512 standard block size then u ll get long int value in bytes, then u can convert to GB.
Solution 2
Refer kernel docs for block device subsystem. stat.txt is for block device I/O stats.
Kernel/userspace ABI docs is also useful, see sysfs-block for comprehensive list of available sysfs entries.
You can also get block device capacities from /proc/partitions.
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Comments
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shas almost 2 years
How can I get hard disk capacity, usage, etc. using the
/procor/sysfilesystems?If it is possible, please tell me which file(s) I need to process to get that information.
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shas almost 9 yearsfrom /proc/partitions file difficult to calculate, using /sys/block/sda/size we can get it in single line output.
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Adam Chance almost 7 yearsIs this the usage, availability, or total capacity?
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Zayne S Halsall about 5 yearsthis is only capacity... question also asks for usage... so presumably not available?
