Hello Kirk !
there are a lot of informations in your update. Thanks.
First, about the suggestion to use the mount command and parse the output:the
problem is that an error message is issued at Syslog/Console at the same time.
I would like to avoid that. I wish to test if the FS Dataset exists, but have
no message if it doesn't exist (it may be normal in some case).
BPXF274I FILE SYSTEM SYS3.IMS04.HFS.ROOTIMS.V14 FAILED TO MOUNT. RETURN CODE =
00000081, REASON CODE = EF096055
Now about the catsearch tool:
My shop will accept to rely on a tool that is not offcialy supported by a known
editor.
And about the cat command, I am not sure this the problem, but don't forget to
escape the "slash" with a backslash on the shell prompt:
cat //\'SYS2.IMS04.HFS.ROOTIMS.V14\'
Regards.Laurent
Le mardi 2 juillet 2019 à 16:21:30 UTC+2, Kirk Wolf
<[email protected]> a écrit :
Hi Lionel,
Did you try this with an existing zFS cluster? I get the same error:
> cat //'dovetail.usrloc.zfs'
cat: //dovetail.usrloc.zfs: EDC5049I The specified file name could not be
located.
FWIW, you can use the Co:Z "catsearch" shell command, which is a shell
command interface to IGGCSI00, etc. (free to use under our Community
License).
For example:
> count=$(catsearch dovetail.usrloc.zfs | wc -l )
> echo $count
1
Back to the original problem - why not use "mount" and redirect stderr
somewhere to a temp file that your script can look at. There might be
errors mounting other than the data set not existing.
Kirk Wolf
http://dovetail.com
PS> There seems to be a legitimate problem with the error returned by
"cat". If I try to read the zfs using the Co:Z "fromdsn" shell command
(which opens and reads using fopen() / fread():
> fromdsn //dovetail.usrloc.zfs
fromdsn(DOVETAIL.USRLOC.ZFS)[E]: DatasetHandler: Error in
fopen(//'DOVETAIL.USRLOC.ZFS', rb,type=record,noseek,recfm=*) - EDC5041I An
error was detected at the system level when opening a file.
(errno2=0xC00A0022)
This is an expected error, since reading VSAM with fread() is not supported
by z/OS for linear data sets.
But doing this on a non-existing file results in:
>fromdsn foo.bar
fromdsn(FOO.BAR)[E]: DatasetHandler: Error in fopen(//'FOO.BAR',
rb,type=record,noseek,recfm=*) - EDC5049I The specified file name could not
be located. (errno2=0xC00B0641)
If you look up the errno2 (reason codes) with bpxmtext, these look right.
You can get cat to print out the errno2 with:
>export _EDC_ADD_ERRNO2=1
/u/vendor/kirk>/bin/cat //'DOVETAIL.USRLOC.ZFS'
cat: //DOVETAIL.USRLOC.ZFS: EDC5049I The specified file name could not be
located. (errno2=0xC00B0641)
>bpxmtext c00b0641
JrEdc1opsElocate01: The filename argument passed to fopen() or freopen()
specified dsname syntax. The mode argument specified read. Allocation of a
ddname for the dsname was attempted, but SVC 99 failed with error code
0x1708.
The data set name could not be located. You cannot use read mode for a data
set that does not exist.
Action: Correct the application.
Source: edc1opst.c
That's just weird.
On Tue, Jul 2, 2019 at 8:43 AM Lionel B Dyck <[email protected]> wrote:
> You could use the cat "//'zos.dsname'" and it will either work on you will
> get a error message:
>
> /u/user/cat "//'USER.TEST'"
> cat: //'USER.TEST': EDC5049I The specified file name could not be
> located.
>
>
> Lionel B. Dyck <sdg><
> Website: http://www.lbdsoftware.com
>
> "Worry more about your character than your reputation. Character is what
> you are, reputation merely what others think you are." - John Wooden
>
> -----Original Message-----
> From: IBM Mainframe Discussion List <[email protected]> On Behalf
> Of [email protected]
> Sent: Tuesday, July 2, 2019 8:37 AM
> To: [email protected]
> Subject: USS script : how to test that a MVS Dataset exists ?
>
> Hello,I would like to "test" if a MVS Dataset exist (is catalogued) during
> the /etc/rc script.
> As far as I know, since /etc/rc script run during USS initialisation, TSO
> services are not yet available. So I cannot use the "tso" Unix command to
> issue a LISTCAT.
> Actualy my need is to perform a mount command in this process. But I do
> not want to return Error messages, if the HFS/ZFS doesn't exist. That's why
> I need to test that the dataset is catalogued/exist before calling the
> Mount service.
>
> Do you have any idea ?
> Regards,Laurent
>
> ----------------------------------------------------------------------
> For IBM-MAIN subscribe / signoff / archive access instructions, send email
> to [email protected] with the message: INFO IBM-MAIN
>
> ----------------------------------------------------------------------
> For IBM-MAIN subscribe / signoff / archive access instructions,
> send email to [email protected] with the message: INFO IBM-MAIN
>
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [email protected] with the message: INFO IBM-MAIN
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [email protected] with the message: INFO IBM-MAIN
