On Tuesday 11 February 2003 05:03 am, Jan Lentfer wrote: > Hi all, > > I bougth a Qlogic 1040B SCSI controller to replace the Adaptec > controller in my PWS 500a, thus actualling switching it to an > 500au. > > The problem I have is: > The controller is found by SRM (show dev) (hooray!!!) > I build the "qlogicisp" kernel module and the controller is > reported as: scsi0 : QLogic ISP1020 SCSI on PCI bus 01 device > 50 irq 44 I/O base 0x8800 > > But my harddisks are not found. When I attach them back to the > Adaptec, this is what I get: > scsi1 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev > 6.2.8 <Adaptec 2940 Ultra SCSI adapter> > aic7880: Ultra Wide Channel A, SCSI Id=7, 16/253 SCBs > > blk: queue fffffc00001f3cb0, no I/O memory limit > Vendor: COMPAQ Model: ST15150W Rev: 6216 > Type: Direct-Access ANSI SCSI > revision: 02 blk: queue fffffc001b7a00d0, no I/O memory limit > Vendor: SEAGATE Model: ST19171W Rev: 0023 > Type: Direct-Access ANSI SCSI > revision: 02 blk: queue fffffc001b7a02d0, no I/O memory limit > scsi1:A:0:0: Tagged Queuing enabled. Depth 253 > scsi1:A:8:0: Tagged Queuing enabled. Depth 253 > Attached scsi disk sda at scsi1, channel 0, id 0, lun 0 > Attached scsi disk sdb at scsi1, channel 0, id 8, lun 0 > (scsi1:A:0): 10.000MB/s transfers (10.000MHz, offset 8) > sda: Spinning up disk...............ready > SCSI device sda: 8386000 512-byte hdwr sectors (4294 MB) > sda: sda1 sda2 > (scsi1:A:8): 40.000MB/s transfers (20.000MHz, offset 8, 16bit) > SCSI device sdb: 17783112 512-byte hdwr sectors (9105 MB) > sdb: sdb1 sdb2 > > Any suggestions???? Why are my harddisks not found by the > QLogic adapter?
IIRC, the 1040B is a high-voltage differential (HVD) adapter. SCSI is most commonly either single-ended (SCSI-1, SCSI-2, Ultra SCSI) or low-voltage differential (Ultra2 or greater). HVD was a stop-gap standard between SE and LVD, and it's electrically compatible with neither one. HVD controllers only work with HVD drives, and vice versa. :( Just to confirm this, you can either look for a "SCSI DIFF" label next to the card's external SCSI port, or look for an array of eight yellow resistor packs--next to the external SCSI port--running parallel to the internal SCSI connectors. Either one means you've got an HVD card. -- Kelledin "If a server crashes in a server farm and no one pings it, does it still cost four figures to fix?"
