RE: RAID on HP ML110 G5
> -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Nejc Škoberne > Sent: Tuesday, March 25, 2008 1:30 AM > To: Tom Munro Glass > Cc: User Questions > Subject: Re: RAID on HP ML110 G5 > > > Hey Tom, > > > I would like to run FreeBSD 7 on a HP ML110 G5. I understand > from past posts > > to this list that the ML110 series is FreeBSD friendly, but > what about RAID 1 > > using the on-board SATA controller? Will this work and how do > you set this > > up? > > I have just configured a ML110G5 with FreeBSD 7 a few days ago. > If you try to make > a BIOS RAID (create an array in RAID controller BIOS), then > FreeBSD won't recognize > it as it does not understand the metadata format which controller > BIOS uses to > manage the arrays. What you have to do is (having RAID mode in > BIOS still enabled) > boot the server with FreeBSD 7 CD and then go to Fixit utility. > There you can create > "hardware" (see previous posts about this being hardware RAID) > RAID with "atacontrol" > utility. This way, FreeBSD will use its own metadata format for > the array and will > recognize such arrays as "arX" devices. Restarting the box you > can then install > FreeBSD easily on these arX devices like on normal adX or daX > devices. So remember, > this is not the "real" FreeBSD software RAID since it is not > controlled by FreeBSD > kernel but by the SATA/RAID controller. For example, I have 4 > drives and I created > RAID-0 (stripes) with atacontrol and will merge them (in a few > days) into a RAID-1 > gmirror. > I think if you set the BIOS control to RAID OFF it will work the same way. The RAID-specific stuff in the BIOS only is used for generating the array and rebuilding it. Once the system is up and running the BIOS code isn't executed and it makes no difference what the setting is. In fact, in the HP DL 320 G5 you MUST set the SATA bios OFF or FreeBSD won't even recognize the SATA controller at all. I have also used this same trick with systems that had no RAID in their BIOS at all but happened to have a RAID-compliant chipset. For example a number of the older Promise UDMA controllers do not have a BIOS on them but the ata driver will allow you to create a pseudo-hardware RAID array anyway. Naturally, you can only do mirroring or striping. Ted ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: RAID on HP ML110 G5
On Tue, 25 Mar 2008, Nejc Škoberne wrote: > Hey Tom, > > > I would like to run FreeBSD 7 on a HP ML110 G5. I understand from past > > posts to this list that the ML110 series is FreeBSD friendly, but what > > about RAID 1 using the on-board SATA controller? Will this work and how > > do you set this up? > > I have just configured a ML110G5 with FreeBSD 7 a few days ago. If you try > to make a BIOS RAID (create an array in RAID controller BIOS), then FreeBSD > won't recognize it as it does not understand the metadata format which > controller BIOS uses to manage the arrays. What you have to do is (having > RAID mode in BIOS still enabled) boot the server with FreeBSD 7 CD and then > go to Fixit utility. There you can create "hardware" (see previous posts > about this being hardware RAID) RAID with "atacontrol" utility. This way, > FreeBSD will use its own metadata format for the array and will recognize > such arrays as "arX" devices. Restarting the box you can then install > FreeBSD easily on these arX devices like on normal adX or daX devices. So > remember, this is not the "real" FreeBSD software RAID since it is not > controlled by FreeBSD kernel but by the SATA/RAID controller. For example, > I have 4 drives and I created RAID-0 (stripes) with atacontrol and will > merge them (in a few days) into a RAID-1 gmirror. > > Hope that helps, > Nejc Thanks to all who replied. Since it is possible to use the SATA RAID but it isn't true hardware RAID, is it better to use the SATA RAID or use gmirror? Regards Tom ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: RAID on HP ML110 G5
Hey Tom, I would like to run FreeBSD 7 on a HP ML110 G5. I understand from past posts to this list that the ML110 series is FreeBSD friendly, but what about RAID 1 using the on-board SATA controller? Will this work and how do you set this up? I have just configured a ML110G5 with FreeBSD 7 a few days ago. If you try to make a BIOS RAID (create an array in RAID controller BIOS), then FreeBSD won't recognize it as it does not understand the metadata format which controller BIOS uses to manage the arrays. What you have to do is (having RAID mode in BIOS still enabled) boot the server with FreeBSD 7 CD and then go to Fixit utility. There you can create "hardware" (see previous posts about this being hardware RAID) RAID with "atacontrol" utility. This way, FreeBSD will use its own metadata format for the array and will recognize such arrays as "arX" devices. Restarting the box you can then install FreeBSD easily on these arX devices like on normal adX or daX devices. So remember, this is not the "real" FreeBSD software RAID since it is not controlled by FreeBSD kernel but by the SATA/RAID controller. For example, I have 4 drives and I created RAID-0 (stripes) with atacontrol and will merge them (in a few days) into a RAID-1 gmirror. Hope that helps, Nejc ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
RE: RAID on HP ML110 G5
raid on those boxes - being sata raid - isn't a true hardware raid. simply use gmirror and turn this "hardware" RAID off - to get the same but with much greater control and portability. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
RE: RAID on HP ML110 G5
> -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of tomasz > dereszynski > Sent: Monday, March 24, 2008 6:17 PM > To: Tom Munro Glass > Cc: freebsd-questions@freebsd.org > Subject: Re: RAID on HP ML110 G5 > > > Tom Munro Glass wrote: > > I would like to run FreeBSD 7 on a HP ML110 G5. I understand > from past posts > > to this list that the ML110 series is FreeBSD friendly, but > what about RAID 1 > > using the on-board SATA controller? Will this work and how do > you set this > > up? > > > > Regards > > > > Tom Munro Glass > > ___ > > freebsd-questions@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > > To unsubscribe, send any mail to > "[EMAIL PROTECTED]" > > > i would recommend to build RAID1 using gmirror instead as then you can > use smartd to monitor drives what isnt possible (AFAIK) with hardware > RAID on those boxes. > Untrue. Those boxes use regular sata raid chipsets that are supported by the ata driver and are easily monitored. Note that the "hardware" raid on those boxes - being sata raid - isn't a true hardware raid. The only true sata hardware raid under FreeBSD that I know of are the 3ware and hipoint cards Ted ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: RAID on HP ML110 G5
Tom Munro Glass wrote: I would like to run FreeBSD 7 on a HP ML110 G5. I understand from past posts to this list that the ML110 series is FreeBSD friendly, but what about RAID 1 using the on-board SATA controller? Will this work and how do you set this up? Regards Tom Munro Glass ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]" i would recommend to build RAID1 using gmirror instead as then you can use smartd to monitor drives what isnt possible (AFAIK) with hardware RAID on those boxes. -- bEsT rEgArDs| "Confidence is what you have before you tomasz dereszynski | understand the problem." -- Woody Allen ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
