Re: [zones-discuss] Migrate a Zone with zfs root. This zone contains UFS SAN attached devices
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[zones-discuss] Migrate a Zone with zfs root. This zone contains UFS SAN attached devices
Hi All, How does one migrate a zone with a zfs root. This zone also contains UFS SAn attached devices. Thanks, Shawn -- This message posted from opensolaris.org ___ zones-discuss mailing list zones-discuss@opensolaris.org
Re: [zones-discuss] Migrate a Zone with zfs root. This zone contains UFS SAN attached devices
On Sun, Jan 2, 2011 at 8:15 AM, Shawn Joy shawn@sun.com wrote: Hi All, How does one migrate a zone with a zfs root. This zone also contains UFS SAn attached devices. While you didn't specify a release of Solaris, I am assuming that you are working with Solaris 10. The instructions for this are at: http://docs.sun.com/app/docs/doc/817-1592/gcgnc?l=ena=view The instructions provided there are rather generic but are likely workable for your situation, assuming that the data served from the SAN is application data and not OS data. A step that is not mentioned is how to configure the storage devices and/or SAN fabric to allow the other host to see the disks. Zones likely do not add any complexity to that task - it should be just a migration of storage from one machine to the next when zones are not involved. If the zonepath is on the SAN, the move the zonepath for my-zone to the new host step is unlikely to involve tar or sftp. Rather, the steps will be along of shutting down the zone, detaching it, doing implementation-specific SAN-based storage migration tasks, attaching it, then booting it. Without knowing specifics about what storage is on the SAN vs. on local disk, it is hard to tell if there is anything especially tricky that you need to deal with. -- Mike Gerdts http://mgerdts.blogspot.com/ ___ zones-discuss mailing list zones-discuss@opensolaris.org
Re: [zones-discuss] Migrate a Zone with zfs root. This zone contains UFS SAN attached devices
Yes, I am running Solaris 10 and only the application data is on the SAN. I had seen this link previously. I understand this is explains moving the zfs root info. For the application data should I be doing the following. While Zone is on the original host. 1.) shut down the app and database and ensure they will not start on boot. 2.) unmount the UFS mount points. 3.) comment out the UFS entries in the zone vfstab. 4.) do the zone detach On the new host. 4.) reconfigure the SAN to ensure the new host can see the UFS SAN mount points. 5.) do the zone attach. 6.) boot the zone 7.) test mounting the UFS SAN devices 8.) correct the zone vfstab entries to ensure it contains the correct entries. 9.) halt the zone 10.) boot the zone to ensure the UFS SAN devices are mounted correctly at boot time. 11.) start the database and App. Thanks, Shawn -- This message posted from opensolaris.org ___ zones-discuss mailing list zones-discuss@opensolaris.org
Re: [zones-discuss] Migrate a Zone with zfs root. This zone contains UFS SAN attached devices
On Sun, Jan 2, 2011 at 8:25 PM, Shawn Joy shawn@bulletproofsi.com wrote: Yes, I am running Solaris 10 and only the application data is on the SAN. I had seen this link previously. I understand this is explains moving the zfs root info. For the application data should I be doing the following. While Zone is on the original host. 1.) shut down the app and database and ensure they will not start on boot. 2.) unmount the UFS mount points. 3.) comment out the UFS entries in the zone vfstab. 4.) do the zone detach On the new host. 4.) reconfigure the SAN to ensure the new host can see the UFS SAN mount points. 5.) do the zone attach. 6.) boot the zone 7.) test mounting the UFS SAN devices 8.) correct the zone vfstab entries to ensure it contains the correct entries. 9.) halt the zone 10.) boot the zone to ensure the UFS SAN devices are mounted correctly at boot time. 11.) start the database and App. That sounds about right. Of course, backups are always a good thing to have just in case things go wrong for some reason. -- Mike Gerdts http://mgerdts.blogspot.com/ ___ zones-discuss mailing list zones-discuss@opensolaris.org
