Date: Fri, 03 Sep 2004 15:44:11 -0600 From: Scott Long <scottl@samsco.org> To: Joe Schmoe <non_secure@yahoo.com> Cc: freebsd-scsi@freebsd.org Subject: Re: Dell PERC 3si ... raid 1+0 possible ? Message-ID: <4138E5AB.1070709@samsco.org> In-Reply-To: <20040903212744.59021.qmail@web53310.mail.yahoo.com> References: <20040903212744.59021.qmail@web53310.mail.yahoo.com>
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Joe Schmoe wrote: > I would like to configure four physical disks as > follows: > > two mirrored volumes, and then create a stripe set out > of the two mirrored volumes. This is raid 1+0, I > believe. So I would end up with only one logical disk > that FreeBSD would see, and it would be 1/2 the size > of the total size of the four disks. > > Can the PERC 3si do this ? > > Further, is there command support in the FreeBSD CLI > to maintain and rebuild raid 1+0 volumes ? > > Thanks you. > You want to do this on a sparc64 machine? The aac driver will not work on big-endian machines right now. If that gets fixed then I guess there is nothing that would prevent it from working. However, there is no boot support (I worked on an OpenBoot BIOS for a little while but never finished it) and there is no management support. The CLI that I did for FreeBSD is closed-source and only for i386. You can always create the array on an i386 system and move it to the sparc64 system, but you won't have any way to manage it. The good news is that things like spare activation happen entirely in the card and not in the driver or management app. Scott
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