StatsDawg

This is essentially the output of the 'iostat' command and shows disk I/O information since the last restart of the system. As a result, the Blk_read adn Blk_wrtn fields (which are blocks read and blocks written) may become less useful the longer the server is up. However the transfers per second (tps) may be helpful in determining overall system bottlenecks. Likewise for the Blk_read/s and Blk_wrtn/s columns since these show the average number of blocks read or written per seconds.

Linux 2.6.18-gentoo-r6 (myserver.mydomain) 	02/22/07

Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
sda               1.92        93.47       184.80  212508180  420158535
sdb               1.90       159.15        47.32  361844140  107592492
md0               0.08         0.63         0.00    1436848          0
md3               0.00         0.00         0.00        192        256
md2               5.45        39.16        33.04   89038400   75108273
md1               1.33         4.26         9.53    9678994   21673137
	

Note that running iostat via the command-line may give you different results since you can specify as part of the command arguments an interval with which to recalculate these values on. For instnace 'iostat 60' would provide statistics based on the previous minute (although the inital output of iostat is always since the last restart). iostat, when invoked in this way, will provide updates to the console at every interval until interrupted by a CTRL-C. For more information on iostat, you should visit the man-page ('man iostat' via the command-line).