Mapping sar output to disk partitions

From: Cohen, Laurence (Laurence_Cohen@sra.com)
Date: Thu Dec 01 2005 - 12:21:15 EST


Very simple question with a seemingly elusive answer. How do I map sar
output below to disk partitions as I would get from a df -k. Obviously
if I'm using raid 5 the data is being striped so I may not be able to
match this to a logical partition, but assume I'm not and just using
either raid 0 with Solstice Disk Suite or just plain old disk
partitions. In other words, how do I map ssdX,y to cXtXdXsX, etc.

Thanks in advance!

00:00:00 device %busy avque r+w/s blks/s avwait avserv

00:01:00 md0 7 0.1 7 92 5.1 16.3
           md1 0 0.0 0 0 0.0 0.0
           md3 26 0.9 107 7145 0.1 7.9
           md4 0 0.0 0 1 4.1 10.5
           md5 1 0.0 1 9 4.2 17.1
           md10 5 0.1 5 47 0.0 14.8
           md11 0 0.0 0 0 0.0 0.0
           md13 20 0.4 55 3711 0.0 8.0
           md14 0 0.0 0 0 0.0 8.8
           md15 1 0.0 1 6 0.0 16.9
           md20 5 0.1 5 53 0.0 14.1
           md21 0 0.0 0 0 0.0 0.0
           md23 21 0.4 55 3728 0.0 8.1
           md24 0 0.0 0 0 0.0 9.5
           md25 1 0.0 1 6 0.0 14.2
           sd6 0 0.0 0 0 0.0 0.0
           ssd0 34 0.5 70 1653 0.0 7.0
           ssd0,c 0 0.0 0 0 0.0 0.0
           ssd0,d 0 0.0 0 0 0.0 0.0
           ssd0,e 34 0.5 70 1653 0.0 7.0
           ssd1 0 0.0 0 0 0.0 0.0
           ssd1,c 0 0.0 0 0 0.0 0.0
           ssd1,d 0 0.0 0 0 0.0 0.0
           ssd1,e 0 0.0 0 0 0.0 0.0
           ssd2 3 0.2 5 76 4.7 26.6
           ssd2,c 0 0.0 0 0 0.0 0.0
           ssd2,d 0 0.0 0 0 0.0 0.0
           ssd2,e 3 0.2 5 76 4.7 26.6
           ssd3 26 0.6 66 3790 0.0 9.5
           ssd3,a 5 0.1 5 53 0.0 14.0
           ssd3,b 0 0.0 0 0 0.0 0.0
           ssd3,c 0 0.0 0 0 0.0 0.0
           ssd3,d 21 0.5 58 3728 0.0 8.6
           ssd3,e 0 0.0 0 0 0.0 9.5
           ssd3,f 1 0.0 1 6 0.0 14.2
           ssd3,g 0 0.0 0 0 0.0 30.2
           ssd3,h 4 0.0 2 2 0.0 26.8
           ssd4 3 0.2 5 75 5.0 26.9
           ssd4,c 0 0.0 0 0 0.0 0.0
           ssd4,d 0 0.0 0 0 0.0 0.0
           ssd4,e 3 0.2 5 75 5.0 26.9
           ssd5 25 0.6 66 3766 0.0 9.4
           ssd5,a 5 0.1 5 47 0.0 14.7
           ssd5,b 0 0.0 0 0 0.0 0.0
           ssd5,c 0 0.0 0 0 0.0 0.0
           ssd5,d 20 0.5 58 3711 0.0 8.4
           ssd5,e 0 0.0 0 0 0.0 8.8
           ssd5,f 1 0.0 1 6 0.3 16.6
           ssd5,g 4 0.0 2 2 0.0 24.7
           ssd5,h 0 0.0 0 0 0.0 0.0
           ssd6 4 0.0 7 287 0.0 6.8
           ssd6,c 0 0.0 0 0 0.0 0.0
           ssd6,d 0 0.0 0 0 0.0 0.0
           ssd6,e 4 0.0 7 287 0.0 6.8
           st15 0 0.0 0 0 0.0 0.0
           st16 0 0.0 0 0 0.0 0.0
           ohci0,bu 0 0.0 0 0 0.0 0.0
           ohci0,ct 0 0.0 0 0 0.0 0.0
           ohci0,in 0 0.0 0 0 0.0 0.0
           ohci0,is 0 0.0 0 0 0.0 0.0
           ohci0,to 0 0.0 0 0 0.0 0.0

Laurence H. Cohen
ISM Unix System Administrator
(703)653-5371
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