[RAS] between crises

[Thomas Krichel]

  I think this crises has shown that is possible to build another
  (slave) root disk, and then basically exchange disks when the master
  disk fails.

  I propose to proceed with such an arrangement. 

  CZ buys a new disk, puts it in there, in place of the 
  current 80, and then we mirror every day all files from 
  the master to the slave. In an emergency, we replace 
  master and slave and we are done.
 
  In addition, we should keep an extrenal backup. One
  is now being kept on snefru. When we have a slave
  disk, the external backup can be made from the slave
  disk, saving I/O on the master. 

  Cheers,

  Thomas Krichel                    http://openlib.org/home/krichel
                                RePEc:per:1965-06-05:thomas_krichel
  phone: +7 383 330 6813                       skype: thomaskrichel