postfix and ext3

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On Sun, Feb 10, 2002 at 02:30:37AM +0200, Alex Kramarov wrote:

> > /var/spool
> > and /var/log are on the same partition, but different modes are best
> > for their patricular use.
> 
> actually, I have /var/log on another partition, so logging is still done
> ordered (the default)

Excellent.
 
> /dev/sda6 on /var type ext3 (rw,data=journal)
> /dev/sda10 on /var/log type ext3 (rw)
> 
> , but that chattr -S -R was the key :

:)
 
> here is a table of messages (34K personalised messages) sent per minute on
> different modes :
> 
> ext2 : 417
> ext2 (chattr-S) : 600

That's not safe -- just for the record

> ext3 : 80
> ext3 (chattr-S) data=journal : 430
> ext3 (chattr-S) data=ordered : 370

Nice benchmark. Did you use smtp-source?
 
> i assume that removing the S attribute does not degrate the integrity of my
> data on a journalling filesystem, right ?

It's safe on /var/spool/postfix.

-- 
Ralf Hildebrandt (Im Auftrag des Referat V A)   Ralf.Hildebrandt@charite.de
Charite Campus Virchow-Klinikum                 Tel.  +49 (0)30-450 570-155
Referat V A - Kommunikationsnetze -             Fax.  +49 (0)30-450 570-916
rcp $FAV_RESTAURANT:$FAV_FOOD /dev/stomach





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