Possible MPU Server Purchases, 2018-21

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Assumptions:
  • We can use virtual machines for non-critical "slave" roles.
  • Where we can replace server hardware with VMs we should do so, to release the server hardware for use elsewhere.
  • The LCFG master should be relatively young as it is so critically important.
  • The VM servers should be relatively young.
  • Servers are now purchased with a 5 year warranty.
  • We don't care how old ssh servers are because they can be any old server (within reason). We'd prefer not to virtualise them.
  • Any hardware fulfilling a non-critical function can be left until it fails, then replaced.

MPU physical servers in May 2018

Service Function Machine Age Machine Name Model
Staff SSH 9 brendel Dell R200
KVM host (test/develop) 9 circle Dell R710
MPU development server 9 metropolitan Dell R710
free 8   IBM storage array
OpenAFS build server 7 juice HP DL180 G6
Staff remote desktop 6 jubilee Dell R720
Student remote desktop 6 hammersmith Dell R720
Package cache 1 6 hare Dell R210 II
Package cache 2 6 wildcat Dell R210 II
KVM host AT 1 5 waterloo Dell R720
arrowup Out of warranty above this line (May 2018) arrowup
KVM host AT 2 5 oyster Dell R720
Offsite KVM host 1 4 amarela Dell R720
Offsite KVM host 2 4 vermelha Dell R720
Student/main SSH 4 bruegel Dell R210 II
LCFG master 4 steen Dell R210 II
Offsite disaster recovery 3 salamanca Dell R320
KVM host IF 3 3 azul Dell R730
KVM host IF 2 2 girassol Dell R730
KVM host IF 1 2 gaivota Dell R730
Packages master and mirrors 1 deneb Dell R330
LCFG slave IF 1 altair Dell R230
LCFG slave AT 1 vega Dell R230

Late 2017-18 developments:

(Each fresh indentation indicates a dependency on the previous event.)
  • New servers regulus and maia.
    • Package cache 1 and 2 move to regulus and maia.
      • hare and wildcat are free.
        • Staff SSH moves to hare
          • brendel is free.
            • brendel is junked.
  • New servers banjo and mandolin (lots of cores, disk and memory).
    • KVM host AT 1 and 2 move to banjo and mandolin.
      • waterloo and oyster are free.
        • KVM host (test/develop) moves to oyster.
          • circle is free.
            • circle is junked.
  • IBM storage array is junked.

2018-19 Developments:

(Each fresh indentation indicates a dependency on the previous event.)
  • Staff remote desktop moves to waterloo.
    • jubilee is free.
      • MPU development server moves to jubilee.
        • metropolitan is free.
          • metropolitan is junked.
  • New servers corge and grault (256GB memory each) - (R440 - 8000 each)
    • Student remote desktop moves to corge and grault.
      • hammersmith is free.
        • KVM host (test cluster) occupies hammersmith.
        • hammersmith inherits 2 of 600GB disks from waterloo.
  • New server garply. (R230 - 2000)
    • LCFG Master moves to garply.
      • steen is free.
        • Staff SSH moves to steen.
          • hare is free.
            • hare is junked.
            • (wildcat is junked.)

MPU physical servers in May 2019

Service Function Machine Age Machine Name Model
OpenAFS build server 8 juice HP DL180 G6
MPU development server 7 jubilee Dell R720
KVM host (test cluster) 7 hammersmith Dell R720
Staff remote desktop 6 waterloo Dell R720
KVM host (test/develop) 6 oyster Dell R720
Student/main SSH 5 bruegel Dell R210 II
Staff SSH 5 steen Dell R210 II
arrowup Out of warranty above this line (May 2019) arrowup
Offsite KVM host 1 5 amarela Dell R720
Offsite KVM host 2 5 vermelha Dell R720
Offsite disaster recovery 4 salamanca Dell R320
KVM host IF 3 4 azul Dell R730
KVM host IF 2 3 girassol Dell R730
KVM host IF 1 3 gaivota Dell R730
Packages master and mirrors 2 deneb Dell R330
LCFG slave IF 2 altair Dell R230
LCFG slave AT 2 vega Dell R230
Package cache 1 1 regulus Dell R230
Package cache 2 1 maia Dell R230
KVM host AT 1 0 banjo Dell R740
KVM host AT 2 0 mandolin Dell R740
Student remote desktop 1 0 corge  
Student remote desktop 2 0 grault  
LCFG Master 0 garply  

2019-20 Developments:

(Each fresh indentation indicates a dependency on the previous event.)
  • New servers waldo and fred (lots of disk, memory and cores, e.g. Dell R740) - (R740 15000 each)
    • Offsite KVM host 1 and Offsite KVM host 2 move to waldo and fred.
      • amarela and vermelha are free.
        • Staff remote desktop moves to amarela.
          • waterloo is free.

MPU physical servers in May 2020

Service Function Machine Age Machine Name Model
OpenAFS build server 9 juice HP DL180 G6
MPU development server 8 jubilee Dell R720
KVM host (test cluster) 8 hammersmith Dell R720
free 7 waterloo Dell R720
KVM host (test/develop) 7 oyster Dell R720
Student/main SSH 6 bruegel Dell R210 II
Staff SSH 6 steen Dell R210 II
Staff remote desktop 6 amarela Dell R720
free 6 vermelha Dell R720
Offsite disaster recovery 5 salamanca Dell R320
arrowup Out of warranty above this line (May 2020) arrowup
KVM host IF 3 5 azul Dell R730
KVM host IF 2 4 girassol Dell R730
KVM host IF 1 4 gaivota Dell R730
Packages master and mirrors 3 deneb Dell R330
LCFG slave IF 3 altair Dell R230
LCFG slave AT 3 vega Dell R230
Package cache 1 2 regulus Dell R230
Package cache 2 2 maia Dell R230
KVM host AT 1 1 banjo Dell R740
KVM host AT 2 1 mandolin Dell R740
Student remote desktop 1 1 corge  
Student remote desktop 2 1 grault  
LCFG Master 1 garply  
Offsite KVM host 1 0 waldo e.g. Dell R740
Offsite KVM host 2 0 fred e.g. Dell R740

2020-21 Developments:

  • New server plugh (lots of disk, memory and cores, e.g. Dell R740) - (R740 - 15000)
    • KVM host IF 3 moves to plugh
      • azul is free
  • New server xyzzy (R330 - 3000)
    • Offsite disaster recovery moves to xyzzy
      • salamanca is free

MPU physical servers in May 2021

Service Function Machine Age Machine Name Model
OpenAFS build server 10 juice HP DL180 G6
MPU development server 9 jubilee Dell R720
KVM host (test cluster) 9 hammersmith Dell R720
free 8 waterloo Dell R720
KVM host (test/develop) 8 oyster Dell R720
Student/main SSH 7 bruegel Dell R210 II
Staff SSH 7 steen Dell R210 II
Staff remote desktop 7 amarela Dell R720
free 7 vermelha Dell R720
free 6 salamanca Dell R320
free 6 azul Dell R730
arrowup Out of warranty above this line (May 2021) arrowup
KVM host IF 2 5 girassol Dell R730
KVM host IF 1 5 gaivota Dell R730
Packages master and mirrors 4 deneb Dell R330
LCFG slave IF 4 altair Dell R230
LCFG slave AT 4 vega Dell R230
Package cache 1 3 regulus Dell R230
Package cache 2 3 maia Dell R230
KVM host AT 1 2 banjo Dell R740
KVM host AT 2 2 mandolin Dell R740
Student remote desktop 1 2 corge  
Student remote desktop 2 2 grault  
LCFG Master 2 garply  
Offsite KVM host 1 1 waldo e.g. Dell R740
Offsite KVM host 2 1 fred e.g. Dell R740
KVM host IF 3 0 plugh e.g. Dell R740
Offsite disaster recovery 0 xyzzy  
Topic revision: r12 - 13 Aug 2018 - 15:25:58 - AlastairScobie
 
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