Or you can switch path to another LPAR then switch it back.

WBR, Sergey



                    "Post, Mark K"
                    <mark.post@eds.        To:     [EMAIL PROTECTED]
                    com>                   cc:
                    Sent by: Linux         Subject:     Re: SuSE Kernel 2.4.7 Tapes
                    on 390 Port
                    <[EMAIL PROTECTED]
                    ARIST.EDU>


                    30.06.02 03:22
                    Please respond
                    to Linux on 390
                    Port






Royce,

Device detection is only done automatically at system startup time.  If you
want to dynamically add devices to a 2.4 system later, you either have to
tell the chandev layer to reprobe for devices, or tell it specifically what
you want to add.  According to the "Device Drivers and Installation
Commands" manual on IBM's DeveloperWorks web site, tape devices are not
supported by chandev, so it sounds like to need to make sure your tape
drives are attached when you boot your Linux system.  You can find the
manual that talks about this at
http://www10.software.ibm.com/developerworks/opensource/linux390/docu/l390dd

08.pdf  You'll want to look at Chapter 1, "Common device support" and
Chapter 8, "Linux for zSeries Channel device layer."

Mark Post

-----Original Message-----
From: Royce Wolf [mailto:[EMAIL PROTECTED]]
Sent: Friday, June 28, 2002 5:43 PM
To: [EMAIL PROTECTED]
Subject: Re: SuSE Kernel 2.4.7 Tapes


I have more, refined information about this problem I'm having.

1.  If the tape drive is attached before boot time, and a subsequent
modprobe tape390 command is issued, I see the following result:
       1. the file /proc/tapedevices is created
       2. in the tapedevices file the attached drive is listed
       3. I can successfully issue an mt command to the tape drive

2.  If the tape drive is attached after boot time, and a subsequent
modprobe
tape390 command is issued, I see the following results:
       1. the file /proc/tapedevices is created
       2. in the tapedevices file NO tape drives are listed
       3. the mt command fails

Any clues...anybody?

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