Date: Sun, 19 Aug 2012 10:37:12 -0700 (PDT) From: Don Lewis <truckman@FreeBSD.org> To: killing@multiplay.co.uk Cc: freebsd-stable@FreeBSD.org, gkontos.mail@gmail.com, freebsd-hardware@FreeBSD.org Subject: Re: LSI 9240-4i 4K alignment Message-ID: <201208191737.q7JHbCr5010382@gw.catspoiler.org> In-Reply-To: <3711745674C24A98A4AE726EC6342721@multiplay.co.uk>
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On 16 Aug, Steven Hartland wrote: > ----- Original Message ----- > From: "George Kontostanos" <gkontos.mail@gmail.com> > >> You are right, the chip specs say: LSISAS2108 RAID-on-Chip >> >> The drives are identified as mfisyspd0, mfisyspd1, etc. > > The following might be interesting to you:- > http://forums.servethehome.com/showthread.php?599-LSI-RAID-Controller-and-HBA-Complete-Listing-Plus-OEM-Models > > Which states:- > LSI MegaRAID SAS 9240-4i 1x4 port internal SAS vertical, > no cache, no BBU, RAID 0, 1, 10 and 5, can be crossflashed > to LSI9211 IT/IR > > This is insteresting as this is the card we're using but > in the 8 port version under mps :) I wish I would have known this earlier. I just put together a ZFS server using LSI MegaRAID SAS 9240-8i cards. The cabling probably would have been cleaner with the 9211-8i, but I went with the 9240 because the vendor that I purchased the cards from listed that 9240 as being PCI-Express 2.0, but didn't say that about the 9211. I also got the impression that the 9240 recognized JBOD drives with the off-the-shelf firmware, whereas the 9211 did not. Even LSI's own site is a bit confusing. They list the 9211 in the HBA section, but its specs don't mention JBOD, whereas the 9240 is listed in the RAID section and its specs do list JBOD. If the only physical difference between the cards is the connector position, it seems odd that they don't offer products with all the combinations of firmware and connector position. I haven't configured the ZFS pool yet, but I didn't have any trouble installing FreeBSD 9.1-BETA on the GPT partitioned boot drive, which shows up as an mfi device. I'm planning on getting the ZFS pool up and running in the next few days.
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