01-17-2012
Help: Disable write cache for battery replacement
Hello Everyone,
I have a AIX 5.2 and saw the following entry in the error report in one of my servers.
IDENTIFIER TIMESTAMP T C RESOURCE_NAME DESCRIPTION
FFDFB692 0705111911 P H sisraid0 BATTERY PACK FAILURE
Now, we're ready to replace the battery pack but I heard I need to disable the write cache first before doing any replacements. I have no idea on how to do it or check if the write cache is enabled.
Could someone please help?
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LEARN ABOUT DEBIAN
wmacpi
WMACPI(1) General Commands Manual WMACPI(1)
NAME
wmacpi - Battery status monitor for systems supporting ACPI
SYNOPSIS
wmacpi [ -c value ] [ -d display ] [ -m battery no ] [ -s sample rate ] [ -f ] [ -v ] [ -n ] [ -x ] [ -a samples ] [ -v ] [ -h ]
DESCRIPTION
This manual page documents briefly the wmacpi command.
wmacpi is a program that displays the current battery status in a WindowMaker dock app, on systems that support Intel's Advanced Configura-
tion and Power Interface specification (ACPI).
The program monitors a battery, displaying its current percentage charge via a bar and a numeric value. It also displays the current power
status for the system, the time remaining (calculated based on the remaining battery capacity and the current rate of power usage), and a
scrolling message with some hopefully useful information.
Clicking on the window cycles through the batteries that the ACPI system knows about.
OPTIONS
-c, --critical=percentage
Set critical low alarm at <percentage>% (default: 10%).
-d, --display=display
Set the X display to open the window on.
-m, --battery=battery number
Set the battery to monitor initially.
-s, --sample-rate=sample rate
Set the rate at which to sample the ACPI data, in number of times per minute. Minimum is 1, ie once a minute, default is 20, maximum
is 600.
-n, --no-blink
Disable blinking power glyph when charging. Note that it still blinks when the battery reports its capacity state as critical.
-f, --force-capacity-mode
Force the use of capacity mode for calculating time remaining. By defalt wmacpi will use the reported values of remaining capacity
and present rate to calculate the time remaining on battery. This flag will force the use of the remaining capacity and time samples
to calculate the present rate of drain, and from there the time remaining. Note that this mode of calculation generally underreports
the time remaining. This mode works around certain buggy ACPI BIOSes that fail to report the current rate.
-x, --cmdline
Run wmacpi in command line mode.
-a, --samples=samples
Average the time remaining over num samples. This greatly improves the accuracy of the reported time remaining.
-V, --verbosity=num
Increase the verbosity of the program. Setting this to 1 will print extra error information; 2 will produce informational output; 3
will produce copious debugging output.
-v, --version
Print the version information.
-r, --no-scroll
Disable scrolling message.
-h, --help
Display help.
AUTHOR
wmacpi was originally written by Tim Copperfield <timecop@japan.co.jp>, then completely rewritten after 1.34 by Simon Fowler
<simon@himi.org>.
This manual page was originally written by Simon Richter <sjr@debian.org> for the Debian GNU/Linux system, and then updated by Simon
Fowler.
Last modification by Simon Fowler <simon@himi.org>, 2007-07-13.
July 13 2007 WMACPI(1)