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Blinking HD every 5 seconds

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mario1971

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1

Friday, April 15th 2005, 8:13pm

Blinking HD every 5 seconds

I have suse 9.2. My HD Blinking every 5 seconds, I read in internet that is a possible cause of setting of KDE. What's your opinion? and if it's true, how is possible to change it?

tbscope

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Friday, April 15th 2005, 9:44pm

Could it be some kind of caching thing going on in the background?

I don't see this behaviour on my pc.

mario1971

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Friday, April 15th 2005, 11:03pm

Have you SUSE 9.2 ?

tbscope

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Friday, April 15th 2005, 11:06pm

No

hsu01

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Saturday, April 16th 2005, 6:13am

Hi, are you using KDE 3.4, if so, try to disable the KDED Media Manager. The option is located in the "KDE Components - Service Manager" module in the K Control Center. Sorry for my poor English :)

mac57

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Thursday, August 18th 2005, 7:26pm

If you have SuSE, you are lucky - SuSE is the first distro I have found
that allows you to overcome this problem. The blinking disk light is
caused by the kernel flushing cache pages to disk - I won't pretend to
understand the full in and out of it, but basically, after a process
writes anything to a variable, the memory page holding it is marked as
"dirty". The kernel flushes "dirty" pages to disk every 5 seconds by
default, so that in the event of a crash, you don't lose more than 5
seconds of data.

SuSE 9.3 at least (not sure if 9.2 does this - I have 9.0 and 9.3) lets
you change the default time between wakeups of the "dirty page flusher"
process. Go to YaST, System, Powertweak Configuration, Virtual Memory,
bdflush - change the value of dirty_writeback_centisecs from its
default of 500 (= 5 seconds) to some value you find acceptable. It is a
tradeoff between how much data you are willing to lose in a crash and
how annoying you find the disk flashing. I have set mine to 3000 (= 30
s). Works like a charm.