> Hi Otto,
>
> Here is the bonnie++ test result after i enabled the write cache.
> Seems good but not too sure if that is the best performance.
>
> any comments? anyway the PERC 5i/R Raid Card is doing RAID 1 with 2
> SATA II drives.
>
> --
> ./Brandon
>
>
>
> On 7/15/07, Otto Moerbeek wrote:
> >
> >On Sun, 15 Jul 2007, Otto Moerbeek wrote:
> >
> >> On Sun, 15 Jul 2007, Brandon Lee wrote:
> >>
> >> > Hi Marco,
> >> >
> >> > There is no option to enable write cache via the PERC 5i/R controller
> >> > or Bios. From bios, i could only select the perfornance of the HDD as
> >> > in "Bypass, Quiet, Suggested and Performance".
> >>
> >> I've seen this before. For some stupid reason you cannot enable the
> >> write cache from the BIOS. What a collegue did is use a linux live CD
> >> with a management program from LSI to enable it. After that all was
> >> OK.
> >>
> >> -Otto
> >
> >BTW, I found the instuctions from my collegue here.
> >Quick translation form dutch:
> >
> >Get linux drivers from dell site: mptlinux-3.02.83.12-5dkms.noarch.rpm
> >Put the drivers on a USB stick.
> >Boot knoppix live cd
> >(
http://ftp.knoppix.nl/os/Linux/distr/knoppix/KNOPPIX_V5.1.1CD-2007-01-04...)
> >
> >Then in knoppix:
> >
> >sudo -s
> >mount /dev/sda1 (the USB stick)
> >cd /media/sda1
> >cp mptlinux-3.02.83.12-5dkms.noarch.rpm /root
> >cd /root
> >alien -i mptlinux-3.02.83.12-5dkms.noarch.rpm
> >cd /ramdisk/usr/src/mtplinux-3.02.83/lsi
> >tar xvfz lsiutil.tgz
> >cd lsiutil
> >make
> >./lsiutil
> >
> >choose controller (er is er maar een)
> >choose RAID functions
> >choose change Volume settings
> >first option: Write Cache Enabled (Yes/No default No): Yes
> >remaining thing default
> >close and reboot.
> >
> >ugly but it works.
> >
> > -Otto
> >
> >
