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We are compressing the data using snzip in a specific time zone. To explain more, we are compressing /dev/sdb's data into /dev/sdc.
If you look at the picture below, you can see the Read IO(r/s) and Write Sector Size (wKB/s) indicators of the device in /dev/sdb.
By the way, while /dev/sdb's data is being compressed to /dev/sdc, there is almost no disk I/O for /dev/sdc. If you are compressing data to /dev/sdb -> /dev/sdc, shouldn't w/s of /dev/sdc increase?
My question is: if you are compressing to /dev/sdb -> /dev/sdc, /dev/sdb should be continuously outputting Read IO, /dev/sdc should be continuously outputting Write IO, but /dev/sdc should not be doing periodic Write IO. Why is that?
The text was updated successfully, but these errors were encountered:
We are compressing the data using snzip in a specific time zone. To explain more, we are compressing /dev/sdb's data into /dev/sdc.
If you look at the picture below, you can see the Read IO(r/s) and Write Sector Size (wKB/s) indicators of the device in /dev/sdb.
By the way, while /dev/sdb's data is being compressed to /dev/sdc, there is almost no disk I/O for /dev/sdc. If you are compressing data to /dev/sdb -> /dev/sdc, shouldn't w/s of /dev/sdc increase?
Periodically some Write IO occurs in /dev/sdc.
My question is: if you are compressing to /dev/sdb -> /dev/sdc, /dev/sdb should be continuously outputting Read IO, /dev/sdc should be continuously outputting Write IO, but /dev/sdc should not be doing periodic Write IO. Why is that?
The text was updated successfully, but these errors were encountered: