system freeze on freebsd 8.0-stable and gmirror/gjournal

[Pawel Jakub Dawidek]

On Mon, Feb 01, 2010 at 09:16:18PM +0100, Ferruccio Zamuner wrote:
> Hello,
> 
> I'm moving to a new server dedicated hosts.
> I've choose to install FreeBSD 8.0 and I've already upgrade to -stable.
> 
> I've two hd sata 160Gb each: ad4, ad6.
> 
> I've split them in two slices: ad[46]s1, ad[46]s2.
> 
> gmirror ad*s1 -> gm0
> gstripe   ad*s2 -> gs0
> 
> then I've applied gjournal to both of them and finally I've partitioned,
> 
> Filesystem                             Size    Used   Avail Capacity  
> Mounted on
> /dev/mirror/gmir0.journala             989M    688M    222M    76%    /
> /dev/mirror/gmir0.journalb               3GB
> /dev/mirror/gmir0.journald             5.8G    3.0M    5.3G     0%    /tmp
> /dev/mirror/gmir0.journale             9.7G    1.9G    7.0G    22%    /var
> /dev/mirror/gmir0.journalf             7.7G    3.5G    3.6G    49%    /usr
> /dev/mirror/gmir0.journalg              88G     20G     61G    25%    /home
> /dev/stripe/gs0.journald                55G     25G     26G    48%    
> /faster1
> 
> > swapinfo
> Device          1K-blocks     Used    Avail Capacity
> /dev/mirror/gmir0.journalb   3047152       28  3047124     0%

It is very bad idea to swap onto gjournal, but the more important thing
is that there should be one gjournal provider for one file system, not
one gjournal provider for multiple file systems. Also file system should
be placed directly on gjournal provider and you have partitions
configured even in gs0 case.

-- 
Pawel Jakub Dawidek                       http://www.wheel.pl
pjd at FreeBSD.org                           http://www.FreeBSD.org
FreeBSD committer                         Am I Evil? Yes, I Am!
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