problem for SCSI card and magnetic tape machine, thanks

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problem for SCSI card and magnetic tape machine, thanks

Post by Guest » Thu Aug 14, 2003 8:44 am

hello, all
In my system, we need to backup data to magnetic tape. we installed a SCSI
card (symbios Logic 8100s PCI SCSI adapter) and a tape machine (HP-c1537A).
when booting ,the QNX found the SCSI card and scan the SCSI devices . after
entering the QNX, there is a process of devb-ncr8, but we can't find the
device node-file to manipulate the tape in the /dev. In the /dev there are
only IDE hard disk portions name (hd0, hd0t11, hd0t12, hd0t13,hd0t79). we
killed the process of devb-ncr8 and run the #devb-ncr8 again,then the
process devb-ncr8 can display the information of SCSI card and the tape
machine.

In QNX, If the way to read/write tape is to read/write a device node-name in
/dev ? (I think the SCSI driver should create a node file in /dev as a raw
block device and we read/write tape is through the
devicefilereading/writing. I don't know if my ideal is wrong. ) who can help
me and tell me how to read/write SCSI tape machine in QNX, and how to solve
the above problem .

think your very much.

Chen Zhengmao
2003.8.14

Bill Caroselli

Re: problem for SCSI card and magnetic tape machine, thanks

Post by Bill Caroselli » Thu Aug 14, 2003 12:40 pm

Please don't cross post.

I haven't used tape for a long time. I don't think it is still
supported in QNX6 (it ws in QNX4). I wish it were. I hate to see
support for anything that once worked dropped.

NOTE: This is NOT an official answer. QSSL should answer.
Hopefully I'm wrong.


chenzm73@163.com wrote:
cc > hello, all
cc > In my system, we need to backup data to magnetic tape. we installed a SCSI
cc > card (symbios Logic 8100s PCI SCSI adapter) and a tape machine (HP-c1537A).
cc > when booting ,the QNX found the SCSI card and scan the SCSI devices . after
cc > entering the QNX, there is a process of devb-ncr8, but we can't find the
cc > device node-file to manipulate the tape in the /dev. In the /dev there are
cc > only IDE hard disk portions name (hd0, hd0t11, hd0t12, hd0t13,hd0t79). we
cc > killed the process of devb-ncr8 and run the #devb-ncr8 again,then the
cc > process devb-ncr8 can display the information of SCSI card and the tape
cc > machine.

cc > In QNX, If the way to read/write tape is to read/write a device node-name in
cc > /dev ? (I think the SCSI driver should create a node file in /dev as a raw
cc > block device and we read/write tape is through the
cc > devicefilereading/writing. I don't know if my ideal is wrong. ) who can help
cc > me and tell me how to read/write SCSI tape machine in QNX, and how to solve
cc > the above problem .

cc > think your very much.

cc > Chen Zhengmao
cc > 2003.8.14

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