I forgot to mention, ONLY install to ar0. do NOT install to any of the other disks that show up.
Ted ----- Original Message ----- From: "Ted Mittelstaedt" <[EMAIL PROTECTED]> To: "George Vanev" <[EMAIL PROTECTED]>; "FreeBSD Questions" <freebsd-questions@freebsd.org> Sent: Thursday, January 25, 2007 12:57 AM Subject: Re: HP Embedded SATA RAID controller (FreeBSD 6.2) > > Hi George! > > Common problem. The issue isn't that the FreeBSD driver cannot talk > to the SATA controller. It can do that just fine. > > The problem is that HP is using a modified metadata format on the > disk drives. > > What you need to do is go into the Proliant BIOS and DISABLE > the SATA raid. This of course means any raid arrays, mirrored or > otherwise, that you have created, cannot be used from BIOS. Just > leave the BIOS settings so that the SATA controller is enabled, but > the RAID on the SATA controller isn't. > > Then boot FreeBSD 6.2. It will see 2 disk drives. (or more or however > many you got) > > Now, if you want a raid mirror here is what you do. Load a scratch > install of FreeBSD 6.2 on the first disk. Run atacontrol to create a > mirror on both disks. This writes out a metadata format that FreeBSD's > disk driver understands. This will trash your freebsd install of course. > No problem. Reboot from the installation CD and now you will see > the 2 disks, plus ar0 (the mirror) Install to that and your all set. > > Basically the only difference between doing it HP's way by creating > the RAID from HP BIOS and doing it the FreeBSD way is that > the HP BIOS is unaware of the FreeBSD metadata format so you > cannot see or rebuild an array from BIOS that was created in > FreeBSD, and FreeBSD is unaware > of HP's metadata format so you cannot see or rebuild an array > from FreeBSD that was created in BIOS > > As far as how the actual raid mirror works, it's exactly the same. > In fact, better, since you can rebuild a FreeBSD array from > FreeBSD and it's about 10 times faster than rebuilding it from > HP's BIOS. > > Ted > > ----- Original Message ----- > From: "George Vanev" <[EMAIL PROTECTED]> > To: "FreeBSD Questions" <freebsd-questions@freebsd.org> > Sent: Wednesday, January 24, 2007 4:35 AM > Subject: HP Embedded SATA RAID controller (FreeBSD 6.2) > > > > I have HP ProLiantML 110 G3 server. > > I am trying to install FreeBSD 6.2. > > But it doesn't seem to recognise the RAID controller. > > I don't know what exactly is the controller. > > In the hp site I didn't find anything usefull, > > except that this is "HP embedded SATA RAID controller" > > Not much, uh?! > > > > Any one could help?! > > Regards > > -- > > George Vanev > > > > _______________________________________________ > > freebsd-questions@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > > To unsubscribe, send any mail to > "[EMAIL PROTECTED]" > > > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "[EMAIL PROTECTED]" > _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
