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SPARC Enterprise M8000/M9000 Servers Service Manual • October 2012
2.9.1.1
Options
describes options for the
iostat
command and how those options can help
troubleshoot the server.
The following example shows output for one
iostat
command.
TABLE 2-13
Options for
iostat
Option
Description
How It Can Help
No option
Reports status of local I/O devices.
A quick three-line output of device
status.
-c
Reports the percentage of time the system has spent in user mode,
in system mode, waiting for I/O, and idling.
Quick report of CPU status.
-e
Displays device error summary statistics. The total errors, hard
errors, soft errors, and transport errors are displayed.
Provides a short table with
accumulated errors. Identifies suspect
I/O devices.
-E
Displays all device error statistics.
Provides information about devices:
manufacturer, model number, serial
number, size, and errors.
-n
Displays names in descriptive format.
Descriptive format helps identify
devices.
-x
For each drive, reports extended drive statistics. The output is in
tabular form.
Similar to the -e option, but provides
rate information. This helps identify
poor performance of internal devices
and other I/O devices across the
network.
#
iostat -En
c0t0d0 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0
Model: ST3120026A Revision: 8.01 Serial No: 3JT4H4C2
Size: 120.03GB <120031641600 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 0
c0t2d0 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0
Vendor: LITE-ON Product: COMBO SOHC-4832K Revision: O3K1 Serial
No:
Size: 0.00GB <0 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 0 Predictive Failure Analysis: 0
Summary of Contents for SPARC Enterprise M8000
Page 4: ......
Page 15: ...Contents xv Index Index 1 ...
Page 16: ...xvi SPARC Enterprise M8000 M9000 Servers Service Manual October 2012 ...
Page 22: ......
Page 27: ...Chapter 1 Safety and Tools 1 5 M9000 Server Front View ...
Page 29: ...Chapter 1 Safety and Tools 1 7 Power Supply Unit PSU ...
Page 38: ...1 16 SPARC Enterprise M8000 M9000 Servers Service Manual October 2012 ...
Page 88: ...2 50 SPARC Enterprise M8000 M9000 Servers Service Manual October 2012 ...
Page 148: ......
Page 154: ...5 6 SPARC Enterprise M8000 M9000 Servers Service Manual October 2012 ...
Page 205: ...Chapter 7 I O Unit IOU Replacement 7 13 FIGURE 7 8 Removing the IOU Front of M9000 1 1 2 3 ...
Page 227: ...Chapter 8 FAN Unit Replacement 8 11 FIGURE 8 9 Removing the FAN Unit Rear of M8000 1 2 ...
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Page 409: ...Chapter 20 Backplane Replacement 20 29 FIGURE 20 16 Removing the FANBP Rear of the M8000 ...
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Page 439: ...Chapter 23 Switch Backplane Replacement 23 7 FIGURE 23 4 Removing the SWBP Rear of the M8000 ...
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