Re: IBM vs other virtualizations

2021-10-30 Thread CAREY SCHUG
First my apologies. I thought I was replying privately to Bill, whom I knew from SHARE and VM Workshops. Maybe he doesn't remember me, but... I didn't think my question was really appropriate for a linux-390 list serve, but must have fallen off of whatever the VM listserv is. I sometimes for

Re: IBM vs other virtualizations

2021-10-30 Thread David L. Craig
On 21Oct30:1346-0400, Rick Troth wrote: > Haven't used Qubes. Qubes requires Xen. -- May the LORD God bless you exceedingly abundantly! Dave_Craig__ "So the universe is not quite as you thought it was. You'd better rearrange your beliefs, then. Bec

Re: IBM vs other virtualizations

2021-10-30 Thread Jim Elliott
Rick, I believe PowerVM would also be considered a Type 1 hypervisor as would VMware. Ji On Sat, Oct 30, 2021 at 1:47 PM Rick Troth wrote: > > I'm aware of two true "type 1" hypervisors: z/VM and Xen. Originally, > Xen was actually PARAvirt, but when the newer instructions became > available o

Re: IBM vs other virtualizations

2021-10-30 Thread Alan Altmark
On Saturday, 10/30/2021 at 09:34 GMT, "CAREY SCHUG" wrote: > I am NOT NOT NOT asking you to take you time to explain to me, just point to > existing documents (including any you may have written that you can share). > warning: I have been out of mainframes for 20 years and had no formal traini

Re: IBM vs other virtualizations

2021-10-30 Thread Rick Troth
The big difference between "System Z" (and all things akin to that architecture, regardless to re-branding, I can't keep up!) and the other platforms is that Z has _channelized I/O_. I've always suspected, but never heard or seen proven or disproved, that channelized I/O makes virtualization potent

IBM vs other virtualizations

2021-10-30 Thread CAREY SCHUG
Hi Bill from the distant past I am NOT NOT NOT asking you to take you time to explain to me, just point to existing documents (including any you may have written that you can share). warning: I have been out of mainframes for 20 years and had no formal training on x86 computers. My ONLY qu