-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Alan Altmark wrote:
> If you need to service z/VM, yes, the system has to be restarted. But > that's why we have CSE clusters so that you can bring the server up on > another LPAR and keep the service alive with only a brief outage. I know. Thanks to Bob Nix, we run it and appreciate it greatly. It still requires every hosted system to take a short outage. Two, in fact, one to move it to our alternate lpar, and another to move it back. By now, we generally don't bother, because by the time we're ready to move a new VM release from second level to first level, the entire outage is short enough that two reboots per guest doesn't look significantly better. > > Some folks have seen Romney White (one of my colleagues) demonstrate at > SHARE some z/VM technology that relocates a running guest from one z/VM > partition to another without an outage. Even though it was a prototype, > it demonstrated that z/VM is capable of fulfilling the "zero down time" > for your guests and we are busily working to bring that to a theater near > you. We're also aware of this, and we're very much looking forward to it. Can't really trumpet this as an advantage, yet, though, since it's not yet released. Which does bring up the point, though, that our shop, with more than one lpar on more than one cec in more than one datacenter appears to be in a distinct minority. In our local z/vm lug, at least, it seems like very few other people are doing anything comparable to us. So, for the majority of zLinux users, my point would still stand -- upgrading or patching z/VM takes down your entire linux environment. There's little or no granularity or rolling upgrade options for most customers for this. > The new z6 CPU is a lot faster than the z9 (go see IBM-MAIN for > discussions), so the conventional wisdom will need to be reevaluated when > that CPU makes its way into a box. Very much looking forward to these. It's likely to be 2009 before we can fit such an acquisition into our budget cycle, though. - -- Pat -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFHHBy6NObCqA8uBswRArSGAKCaQz+WC+D3o3xHXulMSfxgGLb8NgCgk/sK WjCrTtxlpiP1omMeefD7WZI= =g6r+ -----END PGP SIGNATURE----- ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
begin:vcard fn:Patrick Spinler n:Spinler;Patrick adr:Ozmun Center 1-12;;200 First St SW;Rochester;Mn;55905;United States email;internet:[EMAIL PROTECTED] tel;work:507-284-9485 x-mozilla-html:FALSE version:2.1 end:vcard
