Question regarding aic79xx versions

[Mike Tremaine]

I've got a problem or 2 that I just wanted some confirmation on. I just
had a drive get marked faulty in my Raid1 setup. I replaced the drive no
problems following the Hot Swap instruction in the Linux Raid Howto but
I have a small problem (actaully probably more then 1 :)). I've posted
my setup below. Basically after I did the raidhotadd and all that I
noticed that the Transfers rate of the new drive was still degraded.

Question 1): Is it true that the scsi bus gets rescanned when the echo
"scsi add-single-device 1 0 1 0" > /proc/scsi/scsi is issued? 

If so then I guess I must have some other problem which is causing the
10/MBS detection. (I just read about the seagate firmware issues so I'll
cross that bridge also.)

Question 2): Should I bother trying to update the AIC7xxx module version
or is 1.3.10 stable enough for this configuration? ( I tend to stick to
stock RH or FC kernels.)


Thanks for your time...

Setup:

OS: Linux - Fedora Core 1
Kernel: 2.4.22-1.2174.nptlsmp
Adaptec AIC79xx driver version: 1.3.10
Adaptec AIC7902 Ultra320 SCSI adapter
aic7902: Ultra320 Wide Channel A, SCSI Id=7, PCI-X 67-100Mhz, 512 SCBs
Allocated SCBs: 5, SG List Length: 102


Attached devices:
Host: scsi1 Channel: 00 Id: 00 Lun: 00
  Vendor: SEAGATE  Model: ST373307LC       Rev: 0006
  Type:   Direct-Access                    ANSI SCSI revision: 03
Host: scsi1 Channel: 00 Id: 06 Lun: 00
  Vendor: ESG-SHV  Model: SCA HSBP M18     Rev: 0.07
  Type:   Processor                        ANSI SCSI revision: 02
Host: scsi1 Channel: 00 Id: 01 Lun: 00
  Vendor: SEAGATE  Model: ST373307LC       Rev: 0004
  Type:   Direct-Access                    ANSI SCSI revision: 03


Target 0 Negotiation Settings
        User: 320.000MB/s transfers (160.000MHz DT|IU|QAS, 16bit)
        Goal: 320.000MB/s transfers (160.000MHz DT|IU|QAS, 16bit)
        Curr: 320.000MB/s transfers (160.000MHz DT|IU|QAS, 16bit)
        Transmission Errors 0
        Channel A Target 0 Lun 0 Settings
                Commands Queued 136016048
                Commands Active 0
                Command Openings 32
                Max Tagged Openings 32
                Device Queue Frozen Count 0
Target 1 Negotiation Settings
        User: 320.000MB/s transfers (160.000MHz DT|IU|QAS, 16bit)
        Goal: 10.869MB/s transfers (10.869MHz)
        Curr: 10.869MB/s transfers (10.869MHz)
        Transmission Errors 235
        Channel A Target 1 Lun 0 Settings
                Commands Queued 131132785
                Commands Active 3
                Command Openings 29
                Max Tagged Openings 32
                Device Queue Frozen Count 0

-- 
Mike Tremaine