Possible MPU Server Purchases, 2016-19

Back to MPUServerBuying2015to18. See also DisplacedServers2015.

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 summer 2016

Service Function Machine Age Machine Name Model
OpenAFS build server 9 budapest Dell 1950
Staff SSH 7 brendel Dell R200
Student SSH 7 schiff Dell R200
KVM host (test/develop) 7 circle Dell R710
KVM host (hot spare) 7 metropolitan Dell R710
Staff remote desktop 7 northern Dell R710
Student remote desktop 7 piccadilly Dell R710
Spare 6 sauce HP DL180 G6
SAN storage 6   IBM storage array
Package mirrors 5 juice HP DL180 G6
(Will soon be) spare 4 jubilee Dell R720
(Will soon be) spare 4 hammersmith Dell R720
Package cache 1 4 hare Dell R210 II
Package cache 2 4 wildcat Dell R210 II
KVM host AT 3 waterloo Dell R720
KVM host IF 3 3 oyster Dell R720
Offsite KVM host 1 2 amarela Dell R720
Offsite KVM host 2 2 vermelha Dell R720
RPM/package master 2 bruegel Dell R210 II
LCFG master 2 steen Dell R210 II
Offsite disaster recovery 1 salamanca Dell R320
KVM host IF 4 1 azul Dell R730
KVM host IF 1 0 gaivota Dell R730
KVM host IF 2 0 girassol Dell R730

2016-17 Developments:

(Each fresh indentation indicates a dependency on the previous event.)
  • New servers gaivota and girassol
    • KVM host IF 1 and KVM host IF 2 move to gaivota and girassol
      • jubilee and hammersmith are free.
        • Student remote desktop and Staff remote desktop move to jubilee and hammersmith
          • northern and piccadilly are free.
            • northern and piccadilly are powered off and kept for spares.
  • OpenAFS build server moves to sauce.
    • budapest is free.
      • All of Informatics' 1950s have now been disposed of, so we get rid of budapest.
  • oyster moves to Appleton Tower to become KVM host AT 2, freeing up circle from its subsidiary duty as backup to waterloo.
  • (High priority purchase) Two new servers een and twee with desktop style CPUs - guesstimate cost 1000 per server
    • LCFG slave 1 and LCFG slave 2 move from VMs to een and twee
  • (Lower priority purchase) New server drie with enough storage to provide several TB of usable space in RAID 10. - guesstimate cost 2500
    • Packages mirrors and RPM/package master merge and move to drie.
      • bruegel and juice are free.
        • Student SSH moves to bruegel.
          • schiff is free.

MPU physical servers in summer 2017

(Alternative 1: we didn't get the funding for drie, the new unified packages master server.)
Service Function Machine Age Machine Name Model
Staff SSH 8 brendel Dell R200
Student SSH 8 schiff Dell R200
KVM host (test/develop) 8 circle Dell R710
KVM host (hot spare) 8 metropolitan Dell R710
spares / junk 8 northern Dell R710
spares / junk 8 piccadilly Dell R710
OpenAFS build server 7 sauce HP DL180 G6
SAN storage 7   IBM storage array
Package mirrors 6 juice HP DL180 G6
Student remote desktop 5 jubilee Dell R720
Staff remote desktop 5 hammersmith Dell R720
Package cache 1 5 hare Dell R210 II
Package cache 2 5 wildcat Dell R210 II
KVM host AT 1 4 waterloo Dell R720
KVM host AT 2 4 oyster Dell R720
Offsite KVM host 1 3 amarela Dell R720
Offsite KVM host 2 3 vermelha Dell R720
RPM/package master 3 bruegel Dell R210 II
LCFG master 3 steen Dell R210 II
Offsite disaster recovery 2 salamanca Dell R320
KVM host IF 3 2 azul Dell R730
KVM host IF 1 1 gaivota Dell R730
KVM host IF 2 1 girassol Dell R730
LCFG slave 1 0 een e.g. Dell R230
LCFG slave 2 0 twee e.g. Dell R230

MPU physical servers in summer 2017

(Alternative 2: we did get funding for drie, the new unified packages master server.)
Service Function Machine Age Machine Name Model
Staff SSH 8 brendel Dell R200
spare 8 schiff Dell R200
KVM host (test/develop) 8 circle Dell R710
KVM host (hot spare) 8 metropolitan Dell R710
spares / junk 8 northern Dell R710
spares / junk 8 piccadilly Dell R710
OpenAFS build server 7 sauce HP DL180 G6
SAN storage 7   IBM storage array
Spare 6 juice HP DL180 G6
Student remote desktop 5 jubilee Dell R720
Staff remote desktop 5 hammersmith Dell R720
Package cache 1 5 hare Dell R210 II
Package cache 2 5 wildcat Dell R210 II
KVM host AT 1 4 waterloo Dell R720
KVM host AT 2 4 oyster Dell R720
Offsite KVM host 1 3 amarela Dell R720
Offsite KVM host 2 3 vermelha Dell R720
Student SSH 3 bruegel Dell R210 II
LCFG master 3 steen Dell R210 II
Offsite disaster recovery 2 salamanca Dell R320
KVM host IF 3 2 azul Dell R730
KVM host IF 1 1 gaivota Dell R730
KVM host IF 2 1 girassol Dell R730
LCFG slave 1 0 een e.g. Dell R230
LCFG slave 2 0 twee e.g. Dell R230
Packages master 0 drie Server with several TB of usable RAID space

2017-18 Developments:

(Each fresh indentation indicates a dependency on the previous event.)
  • (High priority purchase) If we didn't get funding for drie (the unified packages master to replace juice and bruegel) last year, buy it now. - guesstimate cost 2500
    • Packages mirrors and RPM/package master merge and move to drie.
      • bruegel and juice are free.
        • Student SSH moves to bruegel.
          • schiff is free.
  • (High priority purchase) Addtional disk space for some or all of the KVM servers - guesstimate cost is 1000 per TB
  • Two new small servers vier and vijf - - guesstimate cost 1200 each
    • Package cache 1 and Package cache 2 move to vier and vijf.
      • hare and wildcat are free.
        • Staff SSH moves to hare.
          • schiff is free.

MPU physical servers in summer 2018

Service Function Machine Age Machine Name Model
spare 9 brendel Dell R200
spare 9 schiff Dell R200
KVM host (test/develop) 9 circle Dell R710
KVM host (hot spare) 9 metropolitan Dell R710
spares / junk 9 northern Dell R710
spares / junk 9 piccadilly Dell R710
OpenAFS build server 8 sauce HP DL180 G6
SAN storage 8   IBM storage array
spare 7 juice HP DL180 G6
Student remote desktop 6 jubilee Dell R720
Staff remote desktop 6 hammersmith Dell R720
Staff SSH 6 hare Dell R210 II
spare 6 wildcat Dell R210 II
KVM host AT 1 5 waterloo Dell R720
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 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 1 2 gaivota Dell R730
KVM host IF 2 2 girassol Dell R730
LCFG slave 1 1 een e.g. Dell R230
LCFG slave 2 1 twee e.g. Dell R230
Packages master 0 or 1 drie Server with several TB of usable RAID space
Package cache 1 0 vier e.g. Dell R230
Package cache 2 0 vijf e.g. Dell R230

2018-19 Developments:

  • Buy two new KVM servers zes and zeven (lots of cores, lots of disk, lots of memory).- guesstimate cost 10000 each
    • KVM host AT 1 and KVM host AT 2 move to zes and zeven.
      • oyster and waterloo are free.
  • Buy new hardware - specs and quantity are as yet unknown, but for the sake of argument assume two machines acht and negen - for a new remote desktop solution - guesstimate cost 8000 each
    • Staff remote desktop and Student remote desktop are obsoleted by New remote desktop provision.
      • jubilee and hammersmith are free.

MPU physical servers in summer 2019

Service FunctionSorted ascending Machine Age Machine Name Model
KVM host (hot spare) 10 metropolitan Dell R710
KVM host (test/develop) 10 circle Dell R710
KVM host AT 1 0 zes e.g. Dell R730
KVM host AT 2 0 zeven e.g. Dell R730
KVM host IF 1 3 gaivota Dell R730
KVM host IF 2 3 girassol Dell R730
KVM host IF 3 4 azul Dell R730
LCFG master 5 steen Dell R210 II
LCFG slave 1 2 een e.g. Dell R230
LCFG slave 2 2 twee e.g. Dell R230
New remote desktop provision 0 acht Totally unknown at this stage
New remote desktop provision 0 negen Totally unknown at this stage
Offsite disaster recovery 4 salamanca Dell R320
Offsite KVM host 1 5 amarela Dell R720
Offsite KVM host 2 5 vermelha Dell R720
OpenAFS build server 9 sauce HP DL180 G6
Package cache 1 1 vier e.g. Dell R230
Package cache 2 1 vijf e.g. Dell R230
Packages master 1 or 2 drie Server with several TB of usable RAID space
SAN storage 9   IBM storage array
spare 10 brendel Dell R200
spare 10 schiff Dell R200
spare 8 juice HP DL180 G6
spare 7 wildcat Dell R210 II
spare 6 waterloo Dell R720
spare 6 oyster Dell R720
spares / junk 10 northern Dell R710
spares / junk 10 piccadilly Dell R710
Staff remote desktop 7 hammersmith Dell R720
Staff SSH 7 hare Dell R210 II
Student remote desktop 7 jubilee Dell R720
Student SSH 5 bruegel Dell R210 II

Beyond 2019

  • Consider moving DR server to an IS hosted virtual machine
Topic revision: r10 - 13 Dec 2017 - 14:43:26 - AlastairScobie
 
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