Re: Sharing ZFS file b/w two systems [not sysplex]
Thanks john, I also read about RECATALOG parm. The restriction is if the HLQ is not SYS1 then the catalog name must match for RECATALOGing. I made a plan based on this. 1)make the ZFS filesystem as READONLY in SYS1 AUTOMOVE=YES 2)Define a UCAT in SYS1 same name as the MCAT of SYS2 (since my HLQ for ZFS is not SYS1) 3)Define cluster with same name of original ZFS in SYS1 with RECATALOG. 4)MOUNT ZFS FS as R/W in SYS1 5)APPLY maintenance, then unmount. 6)delete Cluster with noscratch. Delete the UCAT (or keep it for future) 7)Make the FS R/W in SYS1 Going to try this on a sample ZFS on Monday Thanks and Regards Shameem K Shoukath From: John McKown john.archie.mck...@gmail.com To: IBM-MAIN@LISTSERV.UA.EDU Sent: Friday, July 26, 2013 6:00 PM Subject: Re: Sharing ZFS file b/w two systems [not sysplex] You can only do this if the ZFS file is NOT, NOT, NOT currently mount in Read/Write mode on System1. You cannot access a VSAM file (and a zFS container dataset is a VSAM LINEAR data set) which is not catalogued. If the zFS DSN has a high level node of SYS1, then you _CAN_ simply catalog it in System2's master catalog using a RECATALOG parameter on the DEFINE for it. If it is not SYS1, you can't do this. I don't know why IBM allows this, but they do. Another, strange, possibility is to NFS export the mount point from System1 and then MOUNT the exported filesystem somewhere on System2. But this requires that you have NFS running on both systems. Well, NFS server running on System1 and NFS client running on System2. No, don't ask me how. I know it is possible, but I have some sort of mental block about it because I've never gotten it to work properly. On Fri, Jul 26, 2013 at 9:04 AM, Shameem .K .Shoukath shameemkshouk...@yahoo.com wrote: hi, There are two different systems LPARs on the same box and volumes can be made online on both sides. I have a ZFS file on System1 on VOLUM1 cataloged in master cat and it belong there. I need the same ZFS file on SYStem 2 temporarily to apply some maintenance (SMPE). What would be the best way to do this? I am trying to avoid import connect SYS2 mcat catalog to SYS1 master catalog any ideas ? Thanks Shameem -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN -- This is a test of the Emergency Broadcast System. If this had been an actual emergency, do you really think we'd stick around to tell you? Maranatha! John McKown -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Sharing ZFS file b/w two systems [not sysplex]
hi, There are two different systems LPARs on the same box and volumes can be made online on both sides. I have a ZFS file on System1 on VOLUM1 cataloged in master cat and it belong there. I need the same ZFS file on SYStem 2 temporarily to apply some maintenance (SMPE). What would be the best way to do this? I am trying to avoid import connect SYS2 mcat catalog to SYS1 master catalog any ideas ? Thanks Shameem -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: Sharing ZFS file b/w two systems [not sysplex]
It's been fair number of years ago, but I've ran into difficulties even when the zFS was mounted readonly on all other systems. I was told by IBM support that any zFS mounted READ/WRITE in one sysplex, must not be mounted at all in any other sysplex. IIRC, it had something to do with being a journaled file system. Don -Original Message- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of John McKown Sent: Friday, July 26, 2013 12:01 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Sharing ZFS file b/w two systems [not sysplex] You can only do this if the ZFS file is NOT, NOT, NOT currently mount in Read/Write mode on System1. You cannot access a VSAM file (and a zFS container dataset is a VSAM LINEAR data set) which is not catalogued. If the zFS DSN has a high level node of SYS1, then you _CAN_ simply catalog it in System2's master catalog using a RECATALOG parameter on the DEFINE for it. If it is not SYS1, you can't do this. I don't know why IBM allows this, but they do. Another, strange, possibility is to NFS export the mount point from System1 and then MOUNT the exported filesystem somewhere on System2. But this requires that you have NFS running on both systems. Well, NFS server running on System1 and NFS client running on System2. No, don't ask me how. I know it is possible, but I have some sort of mental block about it because I've never gotten it to work properly. On Fri, Jul 26, 2013 at 9:04 AM, Shameem .K .Shoukath shameemkshouk...@yahoo.com wrote: hi, There are two different systems LPARs on the same box and volumes can be made online on both sides. I have a ZFS file on System1 on VOLUM1 cataloged in master cat and it belong there. I need the same ZFS file on SYStem 2 temporarily to apply some maintenance (SMPE). What would be the best way to do this? I am trying to avoid import connect SYS2 mcat catalog to SYS1 master catalog any ideas ? Thanks Shameem -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN -- This is a test of the Emergency Broadcast System. If this had been an actual emergency, do you really think we'd stick around to tell you? Maranatha! John McKown -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
