Is it Geom, the mfi driver or the HBA?

[andy thomas]

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 at 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 at freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-fs
> To unsubscribe, send any mail to "freebsd-fs-unsubscribe at freebsd.org"
>