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

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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