MPU Data Backups
The MPU has a number of servers containing master data. Most are backed up off-site using rsync+rmirror.
Rmirror backups are run by the Services Unit. They have a page which describes
how to set up a client for mirroring. The nightly results of the mirrors can be checked from each client machine using
om rmirrorclient report
or all together on the
Mirrors Report page.
Because mirrors can be moved around from time to time it no longer makes sense to list the exact mirror locations here. To find a mirror's location, first look on the results page to find the name of the mirror server used for that particular mirror; then login to that server and look in its
/disk/rmirror
partitions and/or its
qxprof rmirror
resources.
All mirrors have been checked to ensure that mirroring is succeeding, that it is at a separate site from the master copy, and that the mirror partition is being taped (except where noted below).
The current host of a VM can be found with
kvmtool --name myhost locate
.
pinemarten
pinemarten is the
pkgforge master server and is a virtual machine in the Forum. It has 1 rmirror entry -
pkgforgedb
.
otter
otter is the
lcfg.org web server and is a virtual machine in KB. It has 2 rmirror entries -
lcfgdatadisk
mirrored from
lcfgweb.inf.ed.ac.uk and
lcfgwiki
mirrored from
wiki.lcfg.org.
lagun
lagun is the
computing.help server. It has one rmirror entry
computedocsbak
. There is also a backup service available on
hulp
mole
mole is the diydice LCFG server and is a virtual machine based at KB. It has 1 rmirror entry
diydice
which is mirrored from
diydice.inf.ed.ac.uk.
nerano
nerano is the old inventory/ordershost server and is a virtual machine in KB. It has 1 rmirror entry
ordershost
steen
steen is the LCFG master and is a real machine in the Forum. It has 2 rmirror entries -
lcfgrfedata
which is mirrored from
lcfg-master.inf.ed.ac.uk and
lcfgsvn
which is mirrored from
lcfgsvn.inf.ed.ac.uk. Note that for this machine we also have backups on the LCFG disaster recovery machine (
lcfg-dr) which are likely to be much more up-to-date.
tomares
tomares is the new inventory (tartarus) server and is a virtual machine in the Forum. It has 1 rmirror entry
tartarus
vendramin
vendramin is the
bugs.lcfg.org server and is a VM in KB. It has one rmirror entry
bugdata
.
KVM hosts
Each KVM host has an rmirror entry called
kvmconf
to mirror its KVM guests' configuration files.
The
SimpleKVMDocs page summarises the current KVM hosts and their whereabouts.
deneb
deneb is the packages mirror server and is a real machine in the Forum. The packages are backed up to the LCFG DR server (
salamanca).
--
StephenQuinney - 24 Jan 2019