Date: Sun, 4 Jun 2017 16:43:38 -0400 From: Zaphod Beeblebrox <zbeeble@gmail.com> To: andy thomas <andy@time-domain.co.uk> Cc: freebsd-fs <freebsd-fs@freebsd.org> Subject: Re: Is it Geom, the mfi driver or the HBA? Message-ID: <CACpH0MeRg7VZsJrUycOAmBG4A7ap6aMZiCmukcV_gkCSYWhtiQ@mail.gmail.com> In-Reply-To: <Pine.GSO.4.64.1706040842010.17205@mail0.time-domain.co.uk> References: <CACpH0McEMzR_Emunhs-Vn25Sc%2B8ZKhg-CuuqYbYwaaPCYq9k=w@mail.gmail.com> <Pine.GSO.4.64.1706040842010.17205@mail0.time-domain.co.uk>
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No. I'm reasonably certain this MFI HBA was sold in Fujitsu servers never seen on this side of the ocean (I'm in Canada). Bought a few of them on eBay from China. But I want to be clear about this: I have set hw.mfi.allow_cam_disk_passthrough=1 ... so, as I understand it, I'm communicating SCSI-wise directly to the disk. I surmise that this is why camcontrol identify sees the full 4T disk. Is it possible to get the CAM layer to use the identify size rather than whatever size it's seeing now? On Sun, Jun 4, 2017 at 3:48 AM, andy thomas <andy@time-domain.co.uk> wrote: > Is the MFI HBA in a Dell PowerEdge R410 or similar 11th generation server? > These HBA's see all disks above 2 TB size as 2 TB disks - it's a limitation > of the HBA firmware. So any O/S is limited to 2 TB max disk size with this > controller although a firmware update may be availabe that supports larger > disks. > > Andy > > > On Sun, 4 Jun 2017, Zaphod Beeblebrox wrote: > > So... when I put a drive in my USB enclosure, it shows up as a 4T drive, >> but when I attach it to my mfi-driver card, it shows up as 2T. Not the >> size that 2T drives commonly are (which is 1.8T), but 2T. >> >> (BTW... mfi is in passs-thru mode) >> >> So... how the world sees this drive: >> >> da6 at mfi0 bus 0 scbus4 target 6 lun 0 >> da6: <ATA ST4000DM005-2DP1 0001> Fixed Direct Access SPC-3 SCSI device >> da6: Serial Number ZDH1BN4H >> da6: 150.000MB/s transfers >> da6: Command Queueing enabled >> da6: 2097151MB (4294967294 512 byte sectors) >> da6: quirks=0x8<4K> >> >> but: >> >> [1:46:346]root@vr:~> camcontrol identify da6 | grep LBA48 >> LBA48 supported 7814037168 sectors >> >> yet >> >> is there a quirk to correct this? If camcontrol sees 4T, why doesn't it >> probe as 4T? >> _______________________________________________ >> freebsd-fs@freebsd.org mailing list >> https://lists.freebsd.org/mailman/listinfo/freebsd-fs >> To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" >> >>
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