This is a well-known issue. There are two methods to control or throttle the disk and network I/O rate under UNIX / Linux while using the rsync command.
Method # 1: Limit I/O bandwidth using rsync command
The --bwlimit option limit I/O bandwidth. You need to set bandwidth using KBytes per second. For example, limit I/O banwidth to 10000KB/s (9.7MB/s), enter:
# rsync --delete --numeric-ids --relative --delete-excluded --bwlimit=10000 /path/to/source /path/to/dest/
OR
# rsync -av --delete --numeric-ids --relative --delete-excluded \
--bwlimit=10000 \
/var/www/html [email protected]:/backups
Method # 2: Take control of I/O bandwidth using ionice utility
The ionice command sets the io scheduling class and priority for a program or script. You can totally control disk i/o. See the following article for detailed examples:
7 comment
Thanks
Check your grammar…. ionice command provide more control as compare to nice command.
should read:
The ‘ionice’ command provide more control as compare to the ‘nice’ command
r3dk1ng
redking… it’s as “compared to” not “as compare” to… check your grammar too if you wanna complain :)
@anon, if you’re going to use quotes to illustrate the difference between original and corrective syntax, then you should use the quotes around the same group of words. Let me fix your poor correction to redking.
Should be “as compared to”, not “as compare to”
But then again, redking also missed pluralizing of provides.
Here is the final corrected sentence that both of you screwed up:
The ionice command provides more control as compared to the nice command.
You are welcome.
Guys!!!!
Please shut up and fix your own garden any time.
Hilarious ! English as she is spoke.
Thank you
server load due to rsync was driving me mad