I took defaults so  if that used root for dead letter directory then I need to 
change
I am in infancy and the only one testing.

Still need to tweak


Tim

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf 
Of Lizette Koehler
Sent: Friday, 19 February, 2016 10:18 AM
To: [email protected]
Subject: Re: zfs question root growth


** THIS IS AN EXTERNAL EMAIL ** Use caution before opening links / attachments. 
Never supply UserID/PASSWORD information.


So here is the message text.  Did you do the displays suggested in the message?


EZD1860I jobname STORAGE SHORTAGE DETECTED IN THE z/OS UNIX FILE SYSTEM DEAD 
LETTER DIRECTORY Explanation The Communications Server SMTP (CSSMTP) 
application detected that storage use in the z/OSR UNIX file system dead letter 
directory exceeds 75%.
In the message text:

Jobname     The job name of the task that started the CSSMTP application. 

System action

Processing continues.
Operator response

Contact the system programmer.
System programmer response
A possible cause for this error is that the UNIX file system that contains the 
dead letter directory is full or nearly full. If this is the cause of the 
error, perform one of the following:

    Determine what can be deleted in the file system and delete it.
    Change the DeadLetterDirectory configuration statement to be a directory on 
a different file system and issue a MODIFY REFRESH command to use the new 
directory.

If the problem persists, then either issue a MODIFY SUSPEND command or change 
the DeadLetterAction configuration statement to DELETE.

Determine whether you need to issue the MODIFY SUSPEND command.

    Issue the MODIFY D,SPOOLSTATUS,SUMMARY command to determine the number of 
mail messages that are in the pending or long retry state for each JES task.
>From the summary report, obtain the TKID value that has pending or long retry 
>mail messages, then issue the MODIFY D,SPOOLSTATUS,DETAIL,TKID=tkid command to 
>display detail information for the specific JES task.
    If there is a large number of mail messages in long retry, then there might 
be a problem with the mail servers. Issue the MODIFY SUSPEND command to suspend 
new JES spool file processing until the problem is resolved. If messages 
EZD1817I, EZD1818I or EZD1819I are in the log, they might help in determining 
the problem. See EZD1817I, EZD1818I, or EZD1819I for more information.
    Delete all unneeded dead letters to free some space in the z/OS UNIX file 
system dead letter directory.

See the information about the UNDELIVERABLE statement in z/OS Communications
Server: IP Configuration Reference for more information about z/OS UNIX file 
system dead letter directory.

So you placed the dead letter queue in the ROOT instead of in sub directory?

Lizette


> -----Original Message-----
> From: IBM Mainframe Discussion List [mailto:[email protected]] 
> On Behalf Of Tim Brown
> Sent: Friday, February 19, 2016 8:09 AM
> To: [email protected]
> Subject: Re: zfs question root growth
> 
> What started this was my testing of CSSMTP using a 5 pack Z/OS 
> replicated system.
> 
> I got this message:
> 
> EZD1860I CSSMTP STORAGE SHORTAGE DETECTED IN THE Z/OS UNIX FILE SYSTEM 
> DEAD LETTER DIRECTORY
> 
> I will proceed to point this directory outside of root for now.
> 
> I believe I have aggregate grow turned on, How can I verify?
> 
> There's 2600 free cyls on volume where OMVS.ROOT resides
> 
> Thanks for all your Z-replies
> 
> Tim
> Z!
> 
> -----Original Message-----
> From: IBM Mainframe Discussion List [mailto:[email protected]] 
> On Behalf Of Lizette Koehler
> Sent: Friday, 19 February, 2016 9:50 AM
> To: [email protected]
> Subject: Re: zfs question root growth
> 
> 
> ** THIS IS AN EXTERNAL EMAIL ** Use caution before opening links / 
> attachments. Never supply UserID/PASSWORD information.
> 
> 
> Are you looking for a monitoring tool?
> 
> There are IOE messages that come out in syslog indicating utilization 
> on zFS files.  So you could look at those from an external perspective.
> 
> Manually, you can use ISPF 3.17 to look at specific files and see what 
> they look like.
> 
> I have not done this, but I think RMF may have something for zFS files.
> 
> Could you provide more details on what you are looking for?
> 
> Do you have aggregate grow turned on ?  What version of zFS are you using?
> Version 3/4/5?
> How much space is available on the volume for your root?
> 
> In my mind, a ROOT should be fairly static.  SYMLINKs and non-growing files.
> 
> What files do you have in your ROOT that maybe should be under /etc 
> /lpp /user and so forth?
> 
> 
> Lizette
> 
> 
> > -----Original Message-----
> > From: IBM Mainframe Discussion List 
> > [mailto:[email protected]] On Behalf Of Tim Brown
> > Sent: Friday, February 19, 2016 7:42 AM
> > To: [email protected]
> > Subject: zfs question root growth
> >
> > Is there a way to determine where space is allocated in ZFS to find 
> > which directories use the most space. Our root is low on free space 
> > and I am concerned about its ability to grow.
> >
> > Thanks,
> > Tim Brown
> 

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