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
Out of warranty above this line (May 2018)
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
Out of warranty above this line (May 2019)
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
Out of warranty above this line (May 2020)
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
Out of warranty above this line (May 2021)
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