All,

have you ever came accross something like that?

I can change into an directory, „ls“ works but „pwd“ returns…. Nothing?!?   
When I’m in this particular directory a „cd ..“ returns „EDC5122I Input/output 
error.“????


I’m pretty new to this „USS administration“ (I’m administering a z/OS running 
with an z/PDT)… So let me tell what I’ve done – I might have done something 
really wrong….


I need some space in USS so I’ve created some new fresh volumes (3390-9) for my 
zPDT and formatted them.

INIT UNITADDRESS(0AE0) NOVERIFY VOLID(USS010) -
   STORAGEGROUP -
   VTOC(3,0,50) -
   INDEX(1,0,30)

Now I have some volumes each with 10010 free CYLs.

Then I’ve created a Data Set for the ZFS file system:

DEFINE CLUSTER -
       (NAME (USSSET.DAT.ZFS) -
       VOLUMES (USS002 USS003 USS004 USS005  -
                USS006 USS007 USS008 USS009) -
       LINEAR CYL(10000 10000) SHAREOPTIONS(3))

The idea was that when the file system needs to be enlarged this is done 
automatically (let z/OS allocate an additional extend of 10000 CYLs from one of 
the dedicated volumes). I know that every extend neary uses the full volume – 
this is okay for me in this case…

Okay, then I’ve created the file system:

FORMAT EXEC PGM=IOEAGFMT,REGION=0M,
 PARM=(' -aggregate USSSET.DAT.ZFS -compat -perms 775 ')


Mounted… everything all right…. I saw that just one of the volumes was „used“. 
So I filled the mounted file system and saw that after some time the log 
messages

IOEZ00312I Dynamic growth of aggregate USSSET.DAT.ZFS in progress, (by user 
ADCDZ).
IOEZ00309I Aggregate USSSET.DAT.ZFS successfully dynamically grown (by user 
ADCDZ).


So for me I guess everything worked as expected… But now…. This „pwd anomaly“ 
….. Did I something wrong? Any idea how to get thigs working as expected?


Thank you,
Michael


Michael Knigge
Software Engineer

SET GmbH
Rühmkorffstraße 5
30163 Hannover

Telefon: +49 511 330 998 23<tel:+49%20511%20330%20998%2023>
Fax: +49 511 330 998 65<tel:+49%20511%20330%20998%2065>
michael.kni...@set.de<mailto:michael.kni...@set.de>
https://www.set.de

Handelsregister: Amtsgericht Hannover HRB 52778
​Geschäftsführer: Dr.-Ing. Tobias Baum, Arthur Brack, Hendrik Leder


Mit freundlichen Grüßen

Michael Knigge



SET GmbH
Rühmkorffstraße 5
30163 Hannover

Telefon: +49 511 330 998 23
Fax: +49 511 330 998 65
michael.kni...@set.de
www.set.de

Handelsregister: Amtsgericht Hannover HRB 52778
​Geschäftsführer: Tobias Baum, Arthur Brack, Hendrik Leder 

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