Re: Antwort: Sysplex Enabled z/OS Unix File System Question

2011-06-16 Thread Mark Zelden
On Thu, 16 Jun 2011 17:31:52 -0500, Doug Henry wrote: >On Thu, 16 Jun 2011 14:07:21 -0700, Edward Jaffe > wrote: > >>On 6/16/2011 1:47 PM, Patrick Loftus wrote: >>> I HIGHLY recommend setting romount_recovery=on as per the following >link: >>> http://publib.boulder.ibm.com/infocenter/zos/v1r10/in

Re: Antwort: Sysplex Enabled z/OS Unix File System Question

2011-06-16 Thread Doug Henry
On Thu, 16 Jun 2011 14:07:21 -0700, Edward Jaffe wrote: >On 6/16/2011 1:47 PM, Patrick Loftus wrote: >> I HIGHLY recommend setting romount_recovery=on as per the following link: >> http://publib.boulder.ibm.com/infocenter/zos/v1r10/index.jsp? topic=/com.ibm.zos.r10.e0za100/dfsmroa.htm > >Agreed

Re: Antwort: Sysplex Enabled z/OS Unix File System Question

2011-06-16 Thread Edward Jaffe
On 6/16/2011 1:47 PM, Patrick Loftus wrote: I HIGHLY recommend setting romount_recovery=on as per the following link: http://publib.boulder.ibm.com/infocenter/zos/v1r10/index.jsp?topic=/com.ibm.zos.r10.e0za100/dfsmroa.htm Agreed. Of course, this should be the default. :-( -- Edward E Jaffe Pho

Re: Antwort: Sysplex Enabled z/OS Unix File System Question

2011-06-16 Thread Patrick Loftus
I HIGHLY recommend setting romount_recovery=on as per the following link: http://publib.boulder.ibm.com/infocenter/zos/v1r10/index.jsp?topic=/com.ibm.zos.r10.e0za100/dfsmroa.htm Otherwise, you can end up in the situation where you're trying to recover a system from a failure and your ZFS filesyste

Re: Antwort: Sysplex Enabled z/OS Unix File System Question

2011-06-16 Thread Mark Jacobs
I am planning to mount the version (and sysplex root) file systems as read only as per IBM's recommendations. I was curious about the expected benefits on assigning read/write application related file systems to specific systems or just accept the default and let the system reassign ownership b

Re: Antwort: Sysplex Enabled z/OS Unix File System Question

2011-06-16 Thread Mark Zelden
>One point is, that all access to the physical file system has to be >coordinated by the owning system. So when the task is executing on the >owning system then no problem. But when it execs on another system, then >there will be some overhead in communicating (literature reads about >function ship

Antwort: Sysplex Enabled z/OS Unix File System Question

2011-06-16 Thread Michael Klaeschen
One point is, that all access to the physical file system has to be coordinated by the owning system. So when the task is executing on the owning system then no problem. But when it execs on another system, then there will be some overhead in communicating (literature reads about function shipp