Iostat Command Options - Sun Oracle SPARC Enterprise M9000 Installation Manual

B.3.1.1

iostat Command Options

TABLE B-13
troubleshoot the server.
Options for
TABLE B-13
Option Description
No option Reports status of local I/O devices.
Reports the percentage of time the system has spent
-c
in user mode, in system mode, waiting for I/O, and
idling.
Displays device error summary statistics. The total
-e
errors, hard errors, soft errors, and transport errors
are displayed.
Displays all device error statistics.
-E
Displays names in descriptive format.
-n
For each drive, reports extended drive statistics. The
-x
output is in tabular form.
The following example shows output for one iostat command.
# iostat -En
c0t0d0 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0
Model: ST3120026A
Size: 120.03GB <120031641600 bytes>
Media Error: 0 Device Not Ready: 0
Illegal Request: 0
c0t2d0 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0
Vendor: LITE-ON
Size: 0.00GB <0 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 0 Predictive Failure Analysis: 0
B-12 SPARC Enterprise M8000/M9000 Servers Installation Guide • October 2012
describes options for the iostat command and how those options can help
iostat
Revision: 8.01
Product: COMBO SOHC-4832K Revision: O3K1 Serial No:
How It Can Help
A quick three-line output of device status.
Quick report of CPU status.
Provides a short table with accumulated
errors. Identifies suspect I/O devices.
Provides information about devices:
manufacturer, model number, serial number,
size, and errors.
Descriptive format helps identify devices.
Similar to the
information. This helps identify poor
performance of internal devices and other I/O
devices across the network.
Serial No: 3JT4H4C2
No Device: 0 Recoverable: 0
-e
option, but provides rate