Block device I/O request time

Dec 14, 2017 | Linux category, Operating Systems

The average time (in milliseconds) for I/O requests issued to the device to be Module data module_begin  module_name Block_dev_await  module_type generic_data  module_exec sar -d | grep devX | tail -1 | awk '{print $8}' (Average)  module_exec sar -d 1 1 | grep devX |...

Block device queue length

Dec 14, 2017 | Linux category, Operating Systems

The average queue length of the requests that were issued to the device. Module data module_begin  module_name Block_dev_avgqu-sz  module_type generic_data  module_exec sar -d | grep devX | tail -1 | awk '{print $7}' (Average)  module_exec sar -d 1 1 | grep devX |...

Block device size request

Dec 14, 2017 | Linux category, Operating Systems

The average size (in sectors) of the requests that were issued to the device. Module data module_begin  module_name Block_dev_Avgrq-sz  module_type generic_data  module_exec sar -d | grep devX | tail -1 | awk '{print $6}' (Average)  module_exec sar -d 1 1 | grep devX...

Block device sectors write

Dec 14, 2017 | Linux category, Operating Systems

Number of sectors written to the device. Module data module_begin  module_name Block_dev_wr_sec  module_type generic_data  module_exec sar -d | grep devX | tail -1 | awk '{print $5}' (Average)  module_exec sar -d 1 1 | grep devX | tail -1 | awk '{print $5}' (Last) ...

Block device sectors read

Dec 14, 2017 | Linux category, Operating Systems

Number of sectors read from the device. Module data module_begin  module_name Block_dev_rd_sec  module_type generic_data  module_exec sar -d | grep devX | tail -1 | awk '{print $4}' (Average)  module_exec sar -d 1 1 | grep devX | tail -1 | awk '{print $4}' (Last) ...