Re: aacraid write through cache into write back cache

[Samuel Díaz García <samueldg@xxxxxxxxxxxx>]

Could you explain a bit more?
I'm not an experienced user.

Regards

Franck Y escribió:

> Hi,
> Happy new year!
> You should check with your swap.
> I nearly got the same, but my cpu is a P3 500....
> And the system is not slow at all....
> Franck
>
> On 1/1/06, Samuel Díaz García <samueldg@xxxxxxxxxxxx> wrote:
>
> > Any kernel parameter or module parameters?
> > Any idea in how to solve the problem?
> >
> > Samuel Díaz García escribió:
> >
> >
> > > I have an Adaptec 2410SA raid controller with RAID 1 configured on it.
> > > The system is an AMD ATHLON 1800 CPU. With FC4 updated distro.
> > >
> > > The system is working fine, but TOOOOOOOOOOOOO SLOOOOOWWWWWWWWWW.
> > >
> > > Taking a view into startup messages I can see:
> > >
> > > sda: got wrong page
> > > sda: assuming drive cache: write through
> > >
> > > In dmesg:
> > >
> > > ...
> > > AAC0: kernel 4.1-0[5934]
> > > AAC0: monitor 4.1-0[5934]
> > > AAC0: bios 4.1-0[5934]
> > > AAC0: serial bab115
> > > scsi0 : aacraid
> > >  Vendor: ADAPTEC   Model: UNO               Rev: V1.0
> > >  Type:   Direct-Access                      ANSI SCSI revision: 02
> > > SCSI device sda: 156247808 512-byte hdwr sectors (79999 MB)
> > > sda: Write Protect is off
> > > sda: Mode Sense: 03 00 00 00
> > > sda: got wrong page
> > > sda: assuming drive cache: write through
> > > SCSI device sda: 156247808 512-byte hdwr sectors (79999 MB)
> > > sda: Write Protect is off
> > > sda: Mode Sense: 03 00 00 00
> > > sda: got wrong page
> > > sda: assuming drive cache: write through
> > > sda: sda1 sda2 sda3
> > > Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0
> > > ...
> > >
> > > I think changing write through into write back cache will solve the
> > > problem.
> > >
> > > The controller utility was used to configure all caches in the drivers.
> > >
> > > Any help about this topic?
> > >
> > > Thanks
> >
> > --
> >    Samuel Díaz García
> >     Director Gerente
> > ArcosCom Wireless, S.L.L.
> >
> > CIF: B11828068
> > c/ Romero Gago, 19
> > Arcos de la Frontera
> > 11630 - Cadiz
> >
> > http://www.arcoscom.com
> >
> > mailto:samueldg@xxxxxxxxxxxx
> > msn: samueldg@xxxxxxxxxxxx
> >
> > Móvil: 651 93 72 48
> > Tlfn.: 956 70 13 15
> > Fax:   956 70 34 83
> >
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>
>
>
> --
> Franck

--
   Samuel Díaz García
    Director Gerente
ArcosCom Wireless, S.L.L.

CIF: B11828068
c/ Romero Gago, 19
Arcos de la Frontera
11630 - Cadiz

http://www.arcoscom.com

mailto:samueldg@xxxxxxxxxxxx
msn: samueldg@xxxxxxxxxxxx

Móvil: 651 93 72 48
Tlfn.: 956 70 13 15
Fax:   956 70 34 83