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Re: Anybody with SCSI Know How still reading this newsgroup ?

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On 28.01.2017 at 11:21 Michael Bäuerle wrote:
>
>> What can be the reason that the LTO-3 streamer is NOT detected by the
>> SCSI controller, but can be used when booted with the LTO-2 streamer
>> and then be exchanged with the LTO-3 streamer ?
>
> I have not seen this problem for decades. In the early days there were
> SCSI devices with a command set that lacks INQUIRY. This is the command
> every modern host uses to query information about a SCSI device.
> A short time later this command was defined as a mandatory command for
> every SCSI device. Is it possible that your LTO3 drive uses a custom
> firmware which intentionally lacks the INQUIRY command?
> (Maybe the vendor explicitly wants that the drives only work with their
> equipment)

Indeed, that's what I expected - Christie is not a vendor for enduser 
equipment. But I didn't read anything about "Christie SCSI controller", 
so I thought there might be an interfacing problem.
Because I tested it with meanwhile TWO controller cards, I am out of 
ideas now.

>
> Another less likely problem may be the time a target device requires to
> become ready after power-on or a bus reset. For power-on the SPI5
> document recommends 10s, for reset 250ms. Many hosts will timeout before
> these values to speed up the device scan.
>

I powered the (external) tape drive 20-30 seconds on, before I boot my 
PC, so this should be not the case.

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Thread

Anybody with SCSI Know How still reading this newsgroup ? Peter Dassow <z80eu@arcor.de> - 2017-01-27 21:49 +0100
  Re: Anybody with SCSI Know How still reading this newsgroup ? Michael Bäuerle <michael.baeuerle@gmx.net> - 2017-01-28 10:21 +0000
    Re: Anybody with SCSI Know How still reading this newsgroup ? Peter Dassow <z80eu@arcor.de> - 2017-02-02 00:42 +0100
      Re: Anybody with SCSI Know How still reading this newsgroup ? Michael Bäuerle <michael.baeuerle@stz-e.de> - 2017-02-02 11:07 +0100
        Re: Anybody with SCSI Know How still reading this newsgroup ? Peter Dassow <z80eu@arcor.de> - 2017-02-06 20:07 +0100
          Re: Anybody with SCSI Know How still reading this newsgroup ? jeffj@panix.com (Jeff Jonas) - 2017-02-12 23:16 -0500

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