Gigabyte 6BXU problems

[Alan McIvor]

Hi,

I have a Gigabyte 6BXU motherboard with onboard AIC7890 that I cannot
get set up properly: the transfer speed is only 11.4 MByte/sec! Any
ideas on what is wrong?

It has two Seagate ST39173LW drives connected to the internal Ultra2
cable, with an LVD terminator on the end. The motherboard LVD
terminator is enabled because the external LVD connector is not
used. There are a couple of disks, a CDROM, and a DDS3 tape drive on
the SE narrow bus, terminated at the end, and both the high/low SE
terminators on on the motherboard. There is nothing on the wide SE
bus. The SCSI bios is set to 80Mbps sync negotiation.

As the /proc/scsi/aic7xxx/0 listing below shows, the LVD disks are
running at 11.4 MByte/sec only, even with the 5.1.11 version of the
driver patched into a 2.0.36 kernel. I get the same speed if I remove
all of the SE devices.

Any ideas of what else to check/ Your help is appreciated.

Thanks,

Alan

------------

Adaptec AIC7xxx driver version: 5.1.11/3.2.4
Compile Options:
  AIC7XXX_RESET_DELAY    : 5
  AIC7XXX_TAGGED_QUEUEING: Adapter Support Enabled
                             Check below to see which
                             devices use tagged queueing
  AIC7XXX_PAGE_ENABLE    : Enabled (This is no longer an option)
  AIC7XXX_PROC_STATS     : Enabled

Adapter Configuration:
           SCSI Adapter: Adaptec AIC-7890/1 Ultra2 SCSI host adapter
                           Ultra2-LVD/SE Wide Controller
    PCI MMAPed I/O Base: 0xee000000
 Adapter SEEPROM Config: SEEPROM found and used.
      Adaptec SCSI BIOS: Enabled
                    IRQ: 10
                   SCBs: Active 1, Max Active 4,
                         Allocated 30, HW 32, Page 255
             Interrupts: 9341
      BIOS Control Word: 0x18a6
   Adapter Control Word: 0x1c5e
   Extended Translation: Enabled
Disconnect Enable Flags: 0xffff
     Ultra Enable Flags: 0x0000
 Tag Queue Enable Flags: 0x0000
Ordered Queue Tag Flags: 0x0000
Default Tag Queue Depth: 8
    Tagged Queue By Device array for aic7xxx host instance 0:
      {255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255}
    Actual queue depth per device for aic7xxx host instance 0:
      {1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}

Statistics:

(scsi0:0:0:0)
  Device using Wide/Sync transfers at 11.4 MByte/sec, offset 15
  Transinfo settings: current(43/15/1), goal(43/127/1), user(43/127/1)
  Total transfers 4940 (4212 reads and 728 writes)
             < 2K      2K+     4K+     8K+    16K+    32K+    64K+   128K+
   Reads:       1    3019      63     527     574      18       8       2
  Writes:       0     620      90      17       1       0       0       0


(scsi0:0:1:0)
  Device using Wide/Sync transfers at 11.4 MByte/sec, offset 15
  Transinfo settings: current(43/15/1), goal(43/127/1), user(43/127/1)
  Total transfers 2173 (2172 reads and 1 writes)
             < 2K      2K+     4K+     8K+    16K+    32K+    64K+   128K+
   Reads:       1    2170       0       0       0       0       1       0
  Writes:       0       1       0       0       0       0       0       0


(scsi0:0:2:0)
  Device using Narrow/Sync transfers at 5.7 MByte/sec, offset 15
  Transinfo settings: current(43/15/0), goal(43/127/0), user(43/127/1)
  Total transfers 1089 (1088 reads and 1 writes)
             < 2K      2K+     4K+     8K+    16K+    32K+    64K+   128K+
   Reads:       1    1086       0       0       0       0       1       0
  Writes:       0       1       0       0       0       0       0       0


(scsi0:0:3:0)
  Device using Narrow/Sync transfers at 5.7 MByte/sec, offset 15
  Transinfo settings: current(43/15/0), goal(43/127/0), user(43/127/1)
  Total transfers 1027 (1026 reads and 1 writes)
             < 2K      2K+     4K+     8K+    16K+    32K+    64K+   128K+
   Reads:       1    1024       0       0       0       0       1       0
  Writes:       0       1       0       0       0       0       0       0


(scsi0:0:5:0)
  Device using Narrow/Async transfers.
  Transinfo settings: current(0/0/0), goal(43/127/0), user(43/127/1)
  Total transfers 0 (0 reads and 0 writes)
             < 2K      2K+     4K+     8K+    16K+    32K+    64K+   128K+
   Reads:       0       0       0       0       0       0       0       0
  Writes:       0       0       0       0       0       0       0       0


(scsi0:0:6:0)
  Device using Narrow/Async transfers.
  Transinfo settings: current(0/0/0), goal(43/127/0), user(43/127/1)
  Total transfers 0 (0 reads and 0 writes)
             < 2K      2K+     4K+     8K+    16K+    32K+    64K+   128K+
   Reads:       0       0       0       0       0       0       0       0
  Writes:       0       0       0       0       0       0       0       0




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