Infrastructure/Mirroring/Tiering

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Tiering

Fedora mirror servers use Tiering, whereby a select few fast mirrors get read access to the master rsync servers, and all the other mirrors pull from those mirrors.

It turns out, 9 of our 10 Tier 0 or Tier 1 mirrors are available over Internet2. And, over half of our total mirrors are reachable over Internet2. So, let's make use of that whereever we can.

For our purposes, define:

  • master: The Red Hat servers download*.fedora.redhat.com.
  • Tier 0: The fast mirrors which pull from Red Hat's Internet2-connected master
  • Tier 1: The fast mirrors which pull from the Tier 0 servers (or one of the other masters).
  • Tier 2: The mirrors that pull from the Tier 1 servers.

Properties of Tier 0 and 1 mirrors:

  • Limit the number of Tier 1 mirrors to 10, to ensure adequate bandwidth for these. Adjust number up or down depending on capability of the masters.
  • Must carry everything under fedora-enchilada and fedora-epel. This allows Tier 2 mirrors to exclude what they wish, but get everything if they so wish. This means at least 1TB of disk space for the Fedora portion of this server.
  • Must have a 1 Gigabit connection to the Internet, or faster.
  • Must have an active, available, responsive mirror administrator during the days content is staged.
  • Must have at least 2 Internet2-connected Tier 1 mirrors.
  • Must have at least 1 Tier 1 mirror on each continent for which we have Tier 2 mirrors
  • Must serve private rsync

Tier 0 Mirrors

Tier 0 mirrors can pull from Red Hat directly over the Internet2 connection.

Server Comment Contact for ACL
fedora-archives.ibiblio.org Internet2 / National Lamba Rail (NLR) connected hosts. Don Sizemore <dls at metalab.unc.edu>
archive.linux.duke.edu Internet2. Uses ACL from MirrorManager database. Kambiz Aghaiepour <kambiz.aghaiepour at duke.edu>

Tier 1 Mirrors

Tier 1 mirrors pull from one of the Tier 0 mirrors.

Server Comment Contact for ACL
mirrors.kernel.org USx2, SE, NL <ftpadmin at kernel.org>
wpi.edu IPv6-connected or Internet2-connected mirrors only Chuck Anderson <cra at wpi.edu>
rsync.hrz.tu-chemnitz.de rsync.hrz.tu-chemnitz.de::fedora-enchilada/. Uses ACL from MirrorManager database . guenther.fischer at hrz.tu-chemnitz.de
fedora-rsync.ftp.pub.2iij.net rsync://fedora-rsync.ftp.pub.2iij.net/fedora-enchilada mirror-contact at iij.ad.jp
sunsite.mff.cuni.cz
ftp.heanet.ie IPv6 and Internet2 connectivity. ftp.heanet.ie::fedora-enchilada, ftp.heanet.ie::fedora-epel mirrors at heanet.ie
mirror.speedpartner.de IPv4 and IPv6 mirror at speedpartner.de
fedora.c3sl.ufpr.br South America Carlos Carvalho carlos at fisica.ufpr.br

Master Mirrors

  • download-i2.fedora.redhat.com in Raleigh, NC, USA (Internet2 users only, but requires static routes to use. Contact mirror-admin at fedoraproject dot org before using this mirror to ensure proper routes are in place).
  • download1.fedora.redhat.com generally points at download-i2, but is currently pointing at download3.
  • download2.fedora.redhat.com in Tampa Bay, FL, USA
  • download3.fedora.redhat.com in Phoenix, AZ, USA
  • download4.fedora.redhat.com in Phoenix, AZ, USA
  • download5.fedora.redhat.com in Phoenix, AZ, USA