I wanted to let everyone know about a small enhancement to the zoneadm 'attach' command that we integrated yesterday.
Currently, before you attach a zone to a host, it must have been detached from the original host. The detach process generates the information we need to validate the attach on the new host. If the original host dies, but the storage that the zone lives on is still available (e.g. a SAN), then it would be nice to be able to attach the zone to a new host. We filed an RFE for this a while back: 6414178 RFE: prepare in advance for zone migration The problem with 'preparing in advance' is that the detach data must be kept in sync as patches and pkgs are modified on the system. This is pretty hard without modifying the patch and pkg commands or doing some other ugly things. However, all of the necessary data needed to detach is actually available within the zone itself in the various files maintained by the pkg and patch commands. The enhancement we made allows the zoneadm 'attach' command to use the data within the zone to generate the data that the 'detach' command would have generated and then it continues in the normal way to validate the zone attach. It only does this when it sees that the zone was not properly detached. We still recommend that you follow the normal procedure of detaching the zone before migrating it. The new enhancement has more failure modes than the standard procedure and it only works for native-branded zones. This enhancement was integrated into nevada b61 so it won't be available in an SX build for a little while yet but I wanted to let everyone know about it. Let me know if there are any questions, Jerry _______________________________________________ zones-discuss mailing list [email protected]
