That's a launch article; does not really speak to how successful the product 
has been in the past year and a half.

Everything I know about Linux administration could be engraved on the back of a 
postage stamp but I would think that if one were a pure Linux sort of person 
then one would almost certainly use kvm for Rockhopper virtualization, rather 
than learning another two OS's (counting CMS as an OS, which it is in a sense). 
If one were coming from Linux on z/VM, one would probably not want to give up 
all of the CMS niftiness.

Gil would seem to be slightly off on his processors:

IBM LinuxONE Emperor is based on the IBM z13
IBM LinuxONE Rockhopper is based on the IBM z13s.
Note: Prior to the general availability of the z13s, Rockhopper is based on the 
IBM zEnterprize BC12.

-- 
https://www.ibm.com/support/knowledgecenter/SSB27U_6.3.0/com.ibm.zvm.v630.hcpa0/servers.htm
 [sic on the spelling of Enterprise]

Charles

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf 
Of Paul Gilmartin
Sent: Friday, February 10, 2017 12:07 PM
To: [email protected]
Subject: Re: IBM LinuxONE Rockhopper

On Fri, 10 Feb 2017 07:43:14 -0800, Charles Mills wrote:

>Anyone have any idea how successful it has been? Is it catching on as a 
>general Linux server, or does the Linux community view it as some weird 
>mainframey thing?
>
>The answer matters to the MVS community because if IBM can sell a warehouse 
>full of them it will support further mainframe hardware development, which 
>must currently seem to IBM to be a small niche market.
> 
Well, here's a non-IBM article.  I dont know how objective:
    http://www.zdnet.com/article/linuxone-ibms-new-linux-mainframes/

So the Rockhopper is built on a z12 and Emperor on a z13.  But:
... The z13 mainframe series can hold up to 10 TBs of memory. 
    Its 8-core z13 CPU can run up to 5GHz. ...

8-core seems small.  Are they only IFLs?  Uncapped?

Elsewhere I read it can use either KVM or zVM as a hypervisor.
Some months ago, I asked on IBMVM whether a z/VM system with only Linux guests 
could be CMS-free, using Linux for administrative chores and sparing 
administrators the need to learl another OS.  The answers distilled to: "You 
wouldn't want to do that; you't forgo all the utilities coded for CMS."

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