I struggled with this too. The full-pack disks for Linux write out a semi-standard VTOC that z/OS understands so it can see the various partitions as data sets that it can backup individually. If the minidisk starts anywhere other than cyl 0, Linux will put a VTOC there but it isn't in the right spot for z/OS to find it (not at cyl 0), so no data set names show up.
Did you see this section in the DFSMS manual? That's where I eventually found some of this explanation when I was trying this out. http://tinyurl.com/6cj6rm We ended up just taking full volume dumps if needed and not trying to use the data set name. Although to make this easier we only give each Linux whole disks. This might have to change as disk sizes get larger. __________________________________ Tom Stewart Infrastructure Analyst John Deere - z/OS Support Services __________________________________ -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of LJ Mace Sent: Tuesday, June 24, 2008 7:54 AM To: [email protected] Subject: Re: DFDSS Backups I'll try to answer some of the question. > How does that name get generated on the Z/OS side? When the pack is backed-up the jcl has a specific pack ddname associated with it ie(DSN=PROD.BACKUP.FULLVOL.VMUS01(+1) and in your case LINUX.VLX1047.PART0001.NATIVE and this is more than likely a full volume backup. Also they are pointed to a specific vol ser in your case I'll guess the pack name is VLX1047 This is usually a gdg so after a certain number of backups older ones roll off Then next two questions I'll take a stab at: I going to assume the mini disks are only a portion of your 3390 so I'm going to guess that the mini disks are backed-up but on a different vol ser or it is a logical backup . This means that only a portion/certain dataset is pulled(backed-up) but I don't know how this could be unless your z/os guys are backing up certain cyl/trk numbers. We do full pack backups here. I hope this helps Mace --- On Tue, 6/24/08, Walters, Gene P <[EMAIL PROTECTED]> wrote: > From: Walters, Gene P <[EMAIL PROTECTED]> > Subject: DFDSS Backups > To: [email protected] > Date: Tuesday, June 24, 2008, 8:01 AM > We use DFDSS to do preliminary full volume backups of Linux volumes. > In doing so, we have had a few problems backing up some of our mod-9's > that we setup as minidisks, as opposed to dedicated. For some reason, > some of our volumes will show a z/os dataset name such as > LINUX.VLX114B.PART0001.NATIVE, some do not show a z/os dataset name at > all. It is the one that do not show a z/os dataset name, that we have > problems backing up. When I do an fdasd with the P option on the > problem volumes, it looks like this: > > Cylinders ............. 10016 > Tracks per cylinder ... 15 > Blocks per track ...... 12 > Bytes per block ....... 4096 > Volume label .......... VOL1 > Volume serial ......... LX1047 > Max partitions ........ 3 > > ------------------ tracks ------------------------------- > Device start end length id system > /de/dasdc1 2 150239 150238 1 Linux > Native > > The S option shows me > Device .......... /dev/dasdc > Volume label .... VOL1 > Volume serial ... LX1047 > > /dev/dasdc1 - LINUX.VLX1047.PART0001.NATIVE > > How does that name get generated on the Z/OS side? > Why does it get generated on the Z/OS side for dedicated dasd, but not > for mini-disks? > How can I get it on the Z/OS side for the mini-disks? > > Thanks > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, send > email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or > visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
