Sun Microsystems Sun Fire V440 Diagnostics And Troubleshooting Manual page 158

9. Verify that all I/O devices and activities are still present and functioning. Type:
# iostat -xtc
This command shows all I/O devices and reports activity for each device. To
identify a problem, examine the output for installed devices that are not listed.
CODE EXAMPLE 7-16
Fire V440 server.
iostat -xtc Command Output
CODE EXAMPLE 7-16
device r/s
sd0 0.0
sd1 6.5
sd2 0.2
sd3 0.2
sd4 0.2
nfs1 0.0
nfs2 0.0
nfs3 0.1
nfs4 0.0
#
10. Examine errors pertaining to I/O devices. Type:
# iostat -E
This command reports on errors for each I/O device. To identify a problem, examine
the output for any type of error that is more than 0. For example, in
CODE EXAMPLE 7-17
iostat -E Command Output
CODE EXAMPLE 7-17
sd0 Soft Errors: 0 Hard Errors: 2 Transport Errors: 0
Vendor: TOSHIBA
Size: 18446744073.71GB <-1 bytes>
Media Error: 0 Device Not Ready: 2 No Device: 0 Recoverable: 0
Illegal Request: 0 Predictive Failure Analysis: 0
sd1 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0
Vendor: SEAGATE
3JA0BW6Y00002317
Size: 36.42GB <36418595328 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 0 Predictive Failure Analysis: 0
sd2 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0
140 Sun Fire V440 Server Diagnostics and Troubleshooting Guide • July 2003
shows the iostat -xtc command output from a "healthy" Sun
extended device statistics
w/s kr/s kw/s wait actv svc_t %w %b tin tout us sy wt id
0.0 0.0 0.0 0.0 0.0
1.2 49.5 7.9
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.1 0.0
0.0 0.6 0.0
0.0 0.1 0.0
, iostat -E reports Hard Errors: 2 for I/O device sd0.
Product: DVD-ROM SD-C2612 Revision: 1011 Serial No: 04/17/02
Product: ST336607LSUN36G
0.0 0
0.0 0.2 24.6
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 9.6
0.0 0.0 1.4
0.0 0.0 5.1
Revision: 0207 Serial No:
tty
0 0 183 0 2 2 96
0 3
0 0
0 0
0 0
0 0
0 0
0 0
0 0
cpu