As part of T179417: Migrate Parsoid from legacy to new storage, capacity will need to be moved from the legacy cluster to the new, by first decommissioning the instances on one host in each rack (6 total), re-imaging them, and bootstrapping them into the new (Cassandra 3.x) cluster.
The hosts to be decommissioned (in order):
- 2002 (codfw, rack b)
- 2004 (codfw, rack c)
- 2006 (codfw, rack d)
- 1007 (eqiad, rack a)
- 1012 (eqiad, rack b)
- 1014 (eqiad, rack d)
Nodes to be bootstrapped:
- 2002
- a
- b
- c
- 2006
- a
- b
- c
- 2004
- a
- b
- c
- 1007
- a
- b
- c
- 1012
- a
- b
- c
- 1014
- a
- b
- c
Post-bootstrap cleanups:
- 2001
- 2002
- 2003
- 2004
- 2005
- 2006
- 1007
- a (in-progress...)
- b
- c
- 1008
- a (in-progress...)
- b
- c
- 1009
- a
- b (in-progress...)
- c
- 1010
- a
- b (in-progress...)
- c
- 1012
- a (in-progress...)
- b (in-progress...)
- c
- 1014
- a
- b (in-progress...)
- c
NOTE: 2006 was intentionally reordered to happen before 2004 in order to side-step T180562: Degraded RAID on restbase2004 for now
