Wee Yeh Tan wrote:
On 6/5/07, Mike Gerdts <[EMAIL PROTECTED]> wrote:
With hundreds of zones in production today, it is feeling like later
is already here.  Worst case patching is well over 24 hours in single
user mode.  (I have developed my own workarounds to make each zone
only add about 10 minutes to total outage time in my initial tests.)

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".

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

This would only be useful if the time to reboot is less than the time to patch.

Does that method sound useful?

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
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