Date: Thu, 5 Oct 2006 08:30:04 -0700 (PDT) From: Doug Ambrisko <ambrisko@ambrisko.com> To: Scott Long <scottl@samsco.org> Cc: Fredrik Widlund <fredrik.widlund@qbrick.com>, freebsd-current@freebsd.org Subject: Re: 6.2-BETA2 Dell PE1950 Message-ID: <200610051530.k95FU4MS006937@ambrisko.com> In-Reply-To: <45249B34.20901@samsco.org>
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Scott Long writes: | Doug Ambrisko wrote: | > Fredrik Widlund writes: | > | An update, right now the BCE nic seems to work, I'm not sure exactly why | > | yet. I'm attaching the dmesg however. | > | | > | SAS adapter is the PERC 5I, which is handled by the MPT driver in | > | 6.2-Beta2. I'll continue to look at this. There are some unhandled | > | events (0x12, 0x16), but these might not be needed. | > | > You might be confused here. PERC stands for "Power Edge RAID Controller" | > which is the LSI RAID card. It is supported via the mfi driver. The | > MPT driver supports the non-RAID SAS card. Okay it can do some RAID | > but really isn't a RAID card like the real RAID card. I do have a | > card that is the SAS controller but I haven't played with it much. | > I did play with it a little to figure out a different problem and | > now it sits on my desk. | | The confusion is actually on Dell's end. They've overloaded the 'PERC' | term to mean both software and hardware RAID. You can build out a | 1950 or 2950 with an MPT SAS card instead of an MFI SAS-RAID card, but | they will still tell you that you are getting 'PERC RAID'. The power | of marketeers. Anyways, I _think_ that the 'i' in 'PERC 5i' is the | indicator that it is software RAID, and thus just an MPT chip doing | its 'integrated mirror' feature. Call me confused then since when I read the POST stuff coming up on during the BIOS the non-RAID card says Dell SAS 5 versus PERC 5/i which matches what I read on Dell's web site. So Dell SAS for the 9G should be the mpt driver and the Dell PERC for the 9G should be mfi. In theory the 2900/2950/1950/1900 are all the same in this regard since they share the same components but different cases & risers. Doug A.
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