On Sun, Mar 6, 2011 at 8:50 AM, Pasi Kärkkäinen <pasik at iki.fi> wrote: > On Fri, Mar 04, 2011 at 03:33:10PM -0500, Kwan Lowe wrote: >> On Fri, Mar 4, 2011 at 3:11 PM, John R Pierce <pierce at hogranch.com> wrote: >> >> > IBM Power servers since the Power4+ CPU (they are up to Power7 now) have >> > hardware partitioning support, commonly known as LPAR. LPAR can be >> > divided in units of 1/10th of a CPU. The software to manage this is >> > now called PowerVM (its been called other names in the past, not all >> > polite). >> [informative text snipped] >> >> Yes, it is some nice stuff... >> >> In particular, having the hardware partitioning capability plays nice >> with Oracle licensing. Under KVM or Xen we still have to license the >> entire system. This probably won't change with the newer kvm, but one >> can hope. >> > > It's kind of funny since OracleVM *is* Xen, and it's counted as > "hardware partitioning" :) > > -- Pasi > >> On the Linux side I would like to see how KSM (kernel memory merge) >> stacks up against memory compression on the Power7 side. Not sure if >> this made it into RHEL6, but hope springs eternal... >> >> Storage management is always a big issue for me. AIX has some really >> great tools for managing disks. In Linux the LUN, block and fs layer >> are still relatively decoupled which gives an enormous amount of >> flexibility but certain types of changes require multiple commands on >> Linux. >> >> On the desktop side I've been running RHEL6 as my primary environment >> since release. Transition was easy. My old kickstart files needed >> tweaking, but so far it's been a breeze. What did you hve to tweak? I noticed the new use of the '%end' flag to mark the end of a section, and the new partitioning structure which names the LVM based volumes and groups things which contain the hostname. (This is a big deal if you have multiple virtual hosts on a machihe and want to compare their internal LVM's side by side from the virtualization server.)