11 Dec
2009
11 Dec
'09
7:28 p.m.
On Fri, Dec 11, 2009 at 9:52 AM, Jussi Hirvi listmember@greenspot.fi wrote:
Centos 5.x, ext3, md raid1
As I do not have UPS for all machines, and I most often use md raid (level 1), I would like to turn the write cache off for all of my server discs. But how?
Below is what I have already found out:
On the page
http://lwn.net/Articles/350072/
I read that I could do this by running hdparm -W0 /dev/sdX , but when I say hdparm -h, it says that the -W option is “dangerous”.
Don't worry it is safe to use that option.
And when I get this done, then how can I make the setting last over the next bootup?
rc.local it.
P.S. Do you really have to quote the whole thread when you respond?
No just the relevant parts.
-Ross