-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf 
Of Elardus Engelbrecht
Sent: Thursday, January 24, 2013 14:53
To: [email protected]
Subject: Re: Varying off path while it is in use

John McKown wrote:

>The path is only needed while the SSCH is active (i.e. actual I/O is being 
>done). During this time, z/OS will not take the path offline. It will mark 
>>the path as pending offline and not use it for future I/O. Once the I/O is 
>complete, it will actually take the path offline. So, you should not need to 
>>worry. z/OS is a bit smarter than some of the other systems out their 
>(*cough* Windows *cough*).
>
>Yup. About windoze, try removing your USB stick while something is writing on 
>it. Safety of contents on that stick is NOT guaranteed. Or do a CD/DVD >eject 
>while doing a pirate copy of something... BTDT. ;-D

If you compare, compare equal situations: I don't think z/OS will do better if 
you pull out the only channel to a device it is writing to...

Kees.

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