Sorry for the self-reply, but I need to clarify a statement I made late last night.
Jeff Victor wrote: > Mike Gerdts wrote: >> On 6/4/07, Jeff Victor <Jeff.Victor at sun.com> wrote: >>> Wee Yeh Tan wrote: >>> > I'll be grateful if you can share that. Patching zones is extremely >>> > painful due to the downtime you mentioned. >>> >>> With S10 U4, Zulu will allow LU of zoned systems and minimize >>> downtime to >>> "reboot time". >> >> My understanding this is not the case if using ZFS for zonepaths. > > You are correct. I was discussing systems that do not use ZFS for boot > file systems (global zone or non-global zone). "You are correct" for Solaris 10 Updates 3 and 4. Some of the pieces to do upgrade a zoned system with LU and ZFS exist in OpenSolaris, but I don't have details. >>> But you can create ABE's - and patch them - even if you aren't >>> upgrading. You could: >>> >>> 1) Create an ABE (with zones) - while apps are running on original BE >>> 2) Patch the ABE (with zones) - while apps are running on original BE >>> 3) Reboot into the ABE (with zones) >>> 4) Fallback to the original BE if necessary >> >> Is this a S10U4 feature? How does this work with zfs? > > Upgrading a zone system with LU is planned for U4. It is not aware of > ZFS yet. > >>> This would only be useful if the time to reboot is less than the time >>> to patch. >>> >>> Does that method sound useful? >> >> Only if it offers some material improvement over zulu, which I >> understand does not support zfs. > > Zulu itself does not modify the installer's awareness of ZFS. It is, at > this point, intended for systems that do not use ZFS as their boot file > system (global zone or non-global zones). > -------------------------------------------------------------------------- Jeff VICTOR Sun Microsystems jeff.victor @ sun.com OS Ambassador Sr. Technical Specialist Solaris 10 Zones FAQ: http://www.opensolaris.org/os/community/zones/faq --------------------------------------------------------------------------
