> Is "Single System Image" conceptually akin to z/OS's "Parallel Sysplex"?
IMHO, the direct answer is "It depends" (TM Bill Bitner). I doubt you could call Parallel Sysplex and SSI "akin". Not even close enough to be called "kissing cousins". There's no Coupling Facility support defined in the announcement. I don't know the maximum number of z/OS systems that can exist in a sysplex. SSI appears to provide a means of using communications architectures to couple up to 4 (maximum: FOUR) z/VM systems into one Single System Image. Guest service machines can be moved between systems with little to no service interruption. It appears that at G.A. there will be a long laundry list of things that would prevent some service machines from being moved between z/VM systems in the SSI. But that initial laundry list would presumably be cleaned up as time progresses. Read the announcement for details. Anything not in the announcement or IBM's public presentations is pure speculation, including mine above. Mike Walter Hewitt Associates The opinions expressed herein are mine alone, not my employer's. "McKown, John" <[email protected]> Sent by: "The IBM z/VM Operating System" <[email protected]> 10/21/2009 11:10 AM Please respond to "The IBM z/VM Operating System" <[email protected]> To [email protected] cc Subject Re: z/VM 6.1 G.A. targeted for this Friday, Oct 23 > -----Original Message----- > From: The IBM z/VM Operating System > [mailto:[email protected]] On Behalf Of Mike Walter > Sent: Wednesday, October 21, 2009 10:55 AM > To: [email protected] > Subject: Re: z/VM 6.1 G.A. targeted for this Friday, Oct 23 > > I don't have any IBM inside information, but I suspect that > there may be a > few reasons, including: > > 1- It's an Architectural Level Set, requiring a z10. A big deal. A > version number increment may help make that more obvious (to > those with > IBM history). > 2- It's the base for the z/VM Single System Image statement > of direction. > A bigger deal. Single System Image is going to be a MAJOR > change to z/VM. > 3- Because they can. :-) > > Mike Walter > Hewitt Associates > The opinions expressed herein are mine alone, not my employer's. Is "Single System Image" conceptually akin to z/OS's "Parallel Sysplex"? -- John McKown Systems Engineer IV IT Administrative Services Group HealthMarkets(r) 9151 Boulevard 26 * N. Richland Hills * TX 76010 (817) 255-3225 phone * (817)-961-6183 cell [email protected] * www.HealthMarkets.com Confidentiality Notice: This e-mail message may contain confidential or proprietary information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. HealthMarkets(r) is the brand name for products underwritten and issued by the insurance subsidiaries of HealthMarkets, Inc. -The Chesapeake Life Insurance Company(r), Mid-West National Life Insurance Company of TennesseeSM and The MEGA Life and Health Insurance Company.SM The information contained in this e-mail and any accompanying documents may contain information that is confidential or otherwise protected from disclosure. If you are not the intended recipient of this message, or if this message has been addressed to you in error, please immediately alert the sender by reply e-mail and then delete this message, including any attachments. Any dissemination, distribution or other use of the contents of this message by anyone other than the intended recipient is strictly prohibited. All messages sent to and from this e-mail address may be monitored as permitted by applicable law and regulations to ensure compliance with our internal policies and to protect our business. E-mails are not secure and cannot be guaranteed to be error free as they can be intercepted, amended, lost or destroyed, or contain viruses. You are deemed to have accepted these risks if you communicate with us by e-mail.
