[CentOS] Design changes are done in Fedora

Mon Jan 12 17:20:24 UTC 2015
Valeri Galtsev <galtsev at kicp.uchicago.edu>

On Mon, January 12, 2015 11:00 am, Warren Young wrote:
> On Jan 11, 2015, at 11:05 AM, Valeri Galtsev <galtsev at kicp.uchicago.edu>
> wrote:
>> On Sun, January 11, 2015 11:22 am, Sven Kieske wrote:
>>> On 11.01.2015 03:42, James B. Byrne wrote:
>>>> What does systemd buy the enterprise that sysinit did not provide?
>>> systemd has it's ugly downsides, but it
>>> _does_ provide much needed features.
>> I don't care that _laptop_ with systemd starts 3
>> times faster - it's brilliant when you have to start it right on the
>> podium few seconds before giving your presentation.
> What about all those poor enterprise people who have been arm-twisted into
> agreeing to SLAs?
> If you’ve agreed to provide five nines of availability, a single reboot in
> the old BIOS + hardware RAID + SysV init world could eat most of the ~5
> minutes of downtime per year you’re allowed under that agreement.  EFI +
> software-defined disk arrays + systemd might cut that to a minute,
> allowing several reboots per year.

Oh, boy, I like this! Do we finally converge on not rebooting machines


> Until we start to see hot-upgradable Linux kernels in mainstream
> distributions, I’d say that does amount to an “enterprise” feature.
> You can extend this argument to four-nines, where you only get 4 minutes
> of downtime per month.  Looking through the centos-announce list archive,
> there seems to be roughly one kernel-* RPM change per month.  Do you
> really want to burn your entire downtime allowance on that?
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> http://lists.centos.org/mailman/listinfo/centos

Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247