[ale] Lost sar data?

[Jim Kinney]

Sounds like the writing process died before the resets happened. SAR
data is not written to disk by default (that I've seen) without some
admin process to do it.
On Thu, 2016-12-29 at 18:43 -0500, Leam Hall wrote:
> Hmm...these were 6 and 8 hour losses, so probably not a disk sync
> issue.
> 
> On 12/29/16 15:19, Jim Kinney wrote:
> > Yes and no. It's stored in memory until a process writes it to
> > disk.
> > Basic sar data is really just reading /proc for numbers. But that
> > is of
> > course just in memory data. To store it requires a system process
> > that
> > collects it. That usually runs in cron or as a daemon.
> > 
> > On Thu, 2016-12-29 at 13:50 -0500, leam hall wrote:
> > > On different VM hard resets, I've noticed that sar data is lost.
> > > On
> > > one reset, all data prior to the reset (0000-reset) was missing,
> > > on
> > > another all data after (crash-2350) was missing.
> > > 
> > > Any ideas why? Is the data stored in memory?
> > > 
> > > --
> > > Mind on a Mission <http://leamhall.blogspot.com/>
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> > --
> > 
> > James P. Kinney III
> > 
> > Every time you stop a school, you will have to build a jail. What
> > you
> > gain at one end you lose at the other. It's like feeding a dog on
> > his
> > own tail. It won't fatten the dog.
> > - Speech 11/23/1900 Mark Twain
> > 
> > http://heretothereideas.blogspot.com/
> > 
> > 
> > 
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-- 
James P. Kinney III

Every time you stop a school, you will have to build a jail. What you
gain at one end you lose at the other. It's like feeding a dog on his
own tail. It won't fatten the dog.
- Speech 11/23/1900 Mark Twain

http://heretothereideas.blogspot.com/
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