Re: Linux Enterprise 2.1 HP Storageworks DAT 40 on a HP DL380

[Rick Stevens <rstevens vitalstream com>]

swalker caspercollege edu wrote:
> Linux Enterprise 2.1
> Compaq SCSI bus with 5300 raid controller.
> tar cvf /dev/st0 /
> /dev/st0: Cannot open: No such device.
> Am unable to track down the problem with getting
> data on to the tape.
>
> mount: can't find /dev/st0 in /etc/fstab or /etc/mtab
>
> How does one verify the proper drivers have been loaded?
> I thought every device on the scsi bus would have been loaded or
> mounted during the install and startup.

SCSI tape is SCSI tape and it should be detected.  If you have the tape
drive on the same controller as the RAID, that could be your problem.
Typically, once a RAID controller is doing RAID, it usually doesn't do
anything else.  You can look at either /var/log/dmesg or
/var/log/messages and look for lines like:

------------------------------------------------------------------------
scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.8
        <Adaptec 2940A Ultra SCSI adapter>
        aic7860: Ultra Single Channel A, SCSI Id=7, 3/253 SCBs


blk: queue c24d0614, I/O limit 4095Mb (mask 0xffffffff)
  Vendor: HP        Model: HP35480A          Rev: 1009
  Type:   Sequential-Access                  ANSI SCSI revision: 02
------------------------------------------------------------------------

And

------------------------------------------------------------------------
st: Version 20030406, bufsize 32768, max init. bufs 4, s/g segs 16
Attached scsi tape st0 at scsi0, channel 0, id 0, lun 0
------------------------------------------------------------------------

(these are for my HP 35480A 4GB DAT drive on an Adaptec 2940U
controller).
----------------------------------------------------------------------
- Rick Stevens, Senior Systems Engineer     rstevens vitalstream com -
- VitalStream, Inc.                       http://www.vitalstream.com -
-                                                                    -
-     If Bill Gates got a dime for every time Windows crashes...     -
-              ...oh, wait.  He does.  THAT explains it!             -
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