Hello again IG-88,
This has been working fine for me with four disks attached to the first mini-SAS port on the controller, however, when I add a disk to the second mini-SAS port it seems to occupy the same HDD slot in DSM as one of the four on the first port. i.e. DSM can't see all 8 ports as individual drives.
My card is a Highpoint 2722 SGL with 2x internal mini-SAS ports for a maximum of 8 SATA ports.
looking in my logs, I see the following:
[ 10.448356] scsi host4: mvsas
[ 10.449301] sas: phy-4:4 added to port-4:0, phy_mask:0x1 ( 400000000000000)
[ 10.449326] sas: phy-4:5 added to port-4:1, phy_mask:0x2 ( 500000000000000)
[ 10.449345] sas: phy-4:6 added to port-4:2, phy_mask:0x4 ( 600000000000000)
[ 10.449366] sas: phy-4:7 added to port-4:3, phy_mask:0x8 ( 700000000000000)
[ 10.449382] sas: DOING DISCOVERY on port 0, pid:49
[ 10.449384] sas: DONE DISCOVERY on port 0, pid:49, result:0
[ 10.449386] sas: DOING DISCOVERY on port 1, pid:49
[ 10.449387] sas: DONE DISCOVERY on port 1, pid:49, result:0
[ 10.449393] sas: DOING DISCOVERY on port 2, pid:49
[ 10.449394] sas: DONE DISCOVERY on port 2, pid:49, result:0
[ 10.449399] sas: DOING DISCOVERY on port 3, pid:49
[ 10.449400] sas: DONE DISCOVERY on port 3, pid:49, result:0
[ 10.449414] sas: Enter sas_scsi_recover_host busy: 0 failed: 0
[ 10.449750] sas: ata0: end_device-4:0: dev error handler
I don't fully understand this, but does it mean ports 4-7 are being remapped to ports 0-3 thereby causing the problem I've outlined above?
Is there a way to make DSM able to see all 8 drives?