Seth Mos wrote:
> On Thu, 30 Aug 2001, Paul Schutte wrote:
>
> > Seth Mos wrote:
> > > On Thu, 30 Aug 2001, Paul Schutte wrote:
> > > > 3/Di controller no RAID settings.
> > >
> > > You mean scsi mode? Or a JBOD config. Did you need to use the patch for
> > > this raid controller.
> > >
> >
> > I did aplied the AACRAID patch. I don't use the onboard adaptec controller.
> > No patch = no drives.
>
> If you toggle the mode in the bios to scsi mode it works as a normal scsi
> controller. It is detected in this case by the normal adaptec driver.
>
It is operating in the RAID mode in the BIOS and not the SCSI mode.
There is also a 36Gbx4 in a RAID 5 array which I did'nt use for the test. It not
mounted at the moment.
> > > > Dell 1400C PIII 866MHz,128M RAM, 2x9G Fujitsu 10k RPM drives on
> > > > Adaptec controller.
> > > > Custom build 2x500MHz PIII, 768M RAM, 9G Seagate Cheetha on DPT 3755
> > > > controller no RAID settings.
>
> > > Have you tried using less logbufs, I can imagine that during deletion
> > > (which is slow) the buffering might become problematic.
> > >
> >
> > It is still in the creation phase. No deletes. I asume the decreasing in
> > size
> > is because there are some
> > packing activity going on. The files are of 100 bytes avarage size.
>
> Do you mean packing as in gzip or something similar? XFS uses delayed
> allocation which means that it might allocate more space then it would
> normally need to reduce fragmentation. So after a slight period XFS will
> be returning the overallocated space.
>
No, there is no compression like gzip or anything. When the files are created
the
usage shoots up to about 2 Gb.
It then starts dropping down to about 900Mb. It is probably the delayed
allocation. I see this often on XFS when
there's a lot of small files.
>
> > > Can you try it with less buffering like 2(default) or 4?
> > >
> >
> > I repeated the test on the 4400 with logbufs=2.
> >
> > It still gave up.
>
> So that's not it.
>
> I don't have any excess diskspace (connected) here to test it on. I'll
> scavenge my room for a disk to hook up to the machine.
>
> Cheers
> Seth
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