[ale] multi-processor vs. Tape Drive
Robert L. Harris
Robert.L.Harris at rdlg.net
Wed May 25 12:14:00 EDT 2005
Sounds like a bug in the driver code. Are both kernels exactly the
same?
On the SMP kernel try "rmmod st; modprobe st" and check to see if
there's any output (check dmesg also).
Thus spake James McFarland (stalax at earthlink.net):
>
> When I use "modprobe st "It shows up under lsmod. However, the device (/dev/st0) is not available. Do I need to create it manually? If so, can you point to someplace with the appropriate instructions?
>
> It also isn't present under /proc/scsi/scsi:
>
> SMP Kernel:
> [root at pheonix ~]# cat /proc/scsi/scsi
> Attached devices:
> Host: scsi0 Channel: 00 Id: 00 Lun: 00
> Vendor: ADAPTEC Model: oldmail-RAID5 Rev: V1.0
> Type: Direct-Access ANSI SCSI revision: 02
>
>
> SP Kernel:
> [root at pheonix ~]# cat /proc/scsi/scsi
> Attached devices:
> Host: scsi0 Channel: 00 Id: 00 Lun: 00
> Vendor: ADAPTEC Model: oldmail-RAID5 Rev: V1.0
> Type: Direct-Access ANSI SCSI revision: 02
> Host: scsi0 Channel: 02 Id: 06 Lun: 00
> Vendor: QUANTUM Model: DLT VS160 Rev: 2500
> Type: Sequential-Access ANSI SCSI revision: 02
>
>
> Robert L. Harris wrote:
>
> >
> >What happens if you load the SMP kernel and "modprobe st" ?
> >
> >
> >Thus spake James McFarland (stalax at earthlink.net):
> >
> >>I hope someone on this list can point me in the right direction.
> >>
> >>I am trying to turn an old dual P3 server into a basic fileserver. I added an adaptec 2200s Dual Chanel SCSI Raid Controller. To Chanel 0 I connected 3 drives for a RAID 5. To Chanel 1 I connected an external Tape drive. I then installed Fedora Core 3.
> >>
> >>When I use the SMP Kernel, the system cannot find the Tape Drive (lsmod shows st isn't loaded). When I use the single processor kernel, It finds the Tape drive just fine, but I get only one processor. In either case, it sees the RAID array just fine.
> >>
> >>I have updated the BIOS on both the motherboard & the SCSI card. Removing the RAID array or changing SCSI channels makes no difference.
> >>
> >>It seems to me that there is a difference in the Kernel configuration somewhere. However, my kernel knowledge is limited at best & my initial attempts to locate a meaningful difference have been unsuccessful.
> >>
> >>I am running the basic Kernels installed with Core 3 (2.6.11-1.14_FC3).
> >>
> >>If anyone can offer a suggestion as to where I should look in my system's configuration, or direct me towards an appropriate net resource I'd really appreciate it.
> >>
> >>-James
> >>_______________________________________________
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> >>Ale at ale.org
> >>http://www.ale.org/mailman/listinfo/ale
> >
> >
> >:wq!
> >---------------------------------------------------------------------------
> >Robert L. Harris | GPG Key ID: E344DA3B
> > @ x-hkp://pgp.mit.edu
> >DISCLAIMER:
> > These are MY OPINIONS With Dreams To Be A King,
> > ALONE. I speak for First One Should Be A Man
> > no-one else. - Manowar
> >
> >
> >
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:wq!
---------------------------------------------------------------------------
Robert L. Harris | GPG Key ID: E344DA3B
@ x-hkp://pgp.mit.edu
DISCLAIMER:
These are MY OPINIONS With Dreams To Be A King,
ALONE. I speak for First One Should Be A Man
no-one else. - Manowar
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