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iostat as a tool for generating disk IO

 
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Operating Systems Solaris iostat as a tool for generating disk IO
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Old 06-29-2010
iostat as a tool for generating disk IO
Hi All

Currently i had a server directly connect to the EMC box.
The EMC storage is a FC Direct Attached Storage to the server without going through SAN switches

And i had download theDaily data file in /var/adm/sa/sardd

But i not sure which one in /var/adm/sa/sardd is the correct information i need to get for the I/O report

kindly advise !

Thanks =)


---------- Post updated 06-29-10 at 02:36 PM ---------- Previous update was 06-28-10 at 03:12 PM ----------

Code:
0:00:00	device	%busy	avque	r+w/s	blks/s	avwait	avserv

0:05:00	md0	2	0.1	4	31	3.7	30.7
	md1	0	0	0	0	0	0
	md3	1	0	1	17	3	18.3
	md10	2	0.1	4	31	0	28.4
	md11	0	0	0	0	0	0
	md13	1	0	1	17	0	13.9
	md20	1	0.1	3	6	0	26.4
	md21	0	0	0	0	0	0
	md23	1	0	1	17	0	12.7
	nfs1	0	0	0	0	0	0
	nfs2	0	0	0	0	0	0
	nfs3	0	0	0	0	0	0
	nfs4	0	0	0	0	0	0
	nfs5	0	0	0	0	0	0
	sd0	4	0.2	7	53	0	24.1
	sd0,a	2	0.1	4	31	0	28.3
	sd0,b	0	0	0	0	0	0
	sd0,c	0	0	0	0	0	0
	sd0,d	1	0	1	17	0	13.9
	sd0,h	2	0	2	2	0	22
	sd2	2	0.1	4	23	0	22.3
	sd2,a	1	0.1	3	6	0	26.4
	sd2,b	0	0	0	0	0	0
	sd2,c	0	0	0	0	0	0
	sd2,d	1	0	1	17	0	12.6
	sd2,h	0	0	0	0	0	0
	sd4	0	0	0	0	0	0
	ssd0	7	0.1	59	4138	0	1.9
	ssd0,c	7	0.1	59	4138	0	1.9
	ssd0,h	0	0	0	0	0	0
	ssd1	0	0	32	2	0	0
	ssd4	6	0.1	51	4229	0	1.9
	ssd4,c	6	0.1	51	4229	0	1.9
	ssd4,h	0	0	0	0	0	0
	ssd5	0	0	32	2	0	0
	st2	0	0	0	0	0	0

is it the above is the I/O performance data.
but how do i know those sd0, sd1 .... is refer to which device?
please help ! =)
 
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