Al - why do you say 00 is HMC? With the recent announcement where you can slice a small 520 into one i5/OS LPAR and up to 3 (or is it 4?) Linux partitions, you don't need an HMC. Therefore the partition defining ether and disk for the virtual Linux partitions is not the HMC, it's the only i5/OS partition on the up to that point single-image system. That's one example. Second follows. It's hasty and plain wrong to say the HMC is equal to a primary partition, because it's not. It is depended upon to get the hardware defined and started at initial setup, as well as controlling CoD and DLPAR, but once the box is up and running, you can disconnect the HMC all you want and the system will stay running. In fact, I upgraded the firmware from 4.4 to 4.5 on one of mine in the middle of the day. Not so with a primary partition. You don't need the HMC to run a box throughout the business day, but you do need a primary - else the rest of your machine would go down. HMC is fantastic. Plus, it's getting better all the time. And from all I've read, experienced, and implemented, it's most definitely not the "new" primary partition. Once again - I say FSP = 00. HMC just controls the FSP which in turn controls the box. Justin C. Haase - iSeries System Administrator IBM Certified Systems Expert - eServer i5 Kingland Systems Corporation email - justin.haase@xxxxxxxxxxxx -----Original Message----- From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Al Barsa Sent: Wednesday, June 15, 2005 9:51 PM To: Midrange Systems Technical Discussion Subject: Re: LPARs It doesn't affect non-LPARed systems, unless you are using the LPAR APIs, which would only be a masochistic act. Partition 00 on i5 is the HMC. (As I said two days ago, it clearly absorbs.) Al Al Barsa, Jr. Barsa Consulting Group, LLC 400>390 "i" comes before "p", "x" and "z" e gads Our system's had more names than Elizabeth Taylor! 914-251-1234 914-251-9406 fax http://www.barsaconsulting.com http://www.taatool.com http://www.as400connection.com "James H H Lampert" <jamesl@xxxxxxxxx To om> midrange-l@xxxxxxxxxxxx Sent by: cc midrange-l-bounce s@xxxxxxxxxxxx Subject LPARs 06/15/2005 05:29 PM Please respond to Midrange Systems Technical Discussion <midrange-l@midra nge.com> It's recently been brought to my attention that in the latest releases, the default LPAR is now 01 instead of 00. Can somebody please explain the what, when, how, and why of this, and/or how this affects non-LPARed systems? -- A very puzzled JHHL -- This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe, unsubscribe, or change list options, visit: http://lists.midrange.com/mailman/listinfo/midrange-l or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please take a moment to review the archives at http://archive.midrange.com/midrange-l. -- This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe, unsubscribe, or change list options, visit: http://lists.midrange.com/mailman/listinfo/midrange-l or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please take a moment to review the archives at http://archive.midrange.com/midrange-l. CONFIDENTIALITY NOTICE: This e-mail communication, including attachments, is covered by the Electronic Communications Privacy Act, 18 U.S.C. 2510-2521, is confidential, and may be legally privileged. If you are not the intended recipient or believe you received this communication in error, please reply to the sender indicating that fact and delete the copy you received. In addition, retention, dissemination, distribution, copying, or otherwise use of the information contained in this communication is strictly prohibited. Thank you.