UKI-LT2-BRUNEL

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UKI-LT2-BRUNEL

Topic: HEPSPEC06


UKI-LT2-BRUNEL
OS+cores,Bits OS Kernel 32/64 mem gcc Total Per Core
Dual CPU, Dual Core AMD Opteron(tm) Processor 265 SL3.09 2.6.9-78.0.1.ELsmp 32/32 4GB 3.4.6 21.13 5.28
Dual CPU, Dual Core AMD Opteron(tm) Processor 265 SL5.4 2.6.18-164.15.1.el5 64/64 4GB 4.1.2 27.85 6.95
Dual CPU, Quad core Intel Xeon E5420 @ 2.50GHz SL4.6 2.6.9-78.0.8.ELsmp 64/64 16GB 3.4.6 56.86 7.11
Dual CPU, Quad core Intel Xeon E5420 @ 2.50GHz SL4.6 2.6.9-78.0.8.ELsmp 32/64 16GB 3.4.6 63.54 7.96
Dual CPU, Quad core Intel Xeon E5420 @ 2.50GHz SL5.4 2.6.18-164.2.1.el5 64/64 16GB 4.1.2 70.59 8.82



Topic: Middleware_transition


gLite3.1/SL4


I have the following services on glite 3.1

-> CEs dgc-grid-40, and dgc-grid-44

Soon to be replace by CreamCEs

-> CE dgc-grid-35

it should be decommissioned by the end of the year

-> BDII

to be upgraded in the next few months

-> SE dgc-grid-50

it has only 2% of the data at the site. I'm planning an upgrade for the
3rd week of December. Most of the data at Brunel is in dc2-grid-64,
glite 3.2 SE.

gLite3.2/EMI


ARGUS

. EMI Argus server running stable since May.


BDII_site

. Upgrading to glite 3.2 in October


CE (CREAM/LCG)

. dgc-grid-43 running on EMI CreamCE.
. Other CEs on LCG, but to be upgraded before the end of the year


glexec

 . Deployed in dgc-grid-43
. To be deployed in all CEs when they are upgraded


SE

 . Main SE (95%) of the storage running on SL5 DPM 1.8
. Remaining SE will be upgraded in December


UI

. SL5 glite 3.2


WN

. All glite 3.2


Comments




Topic: Protected_Site_networking



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Topic: Resiliency_and_Disaster_Planning



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Topic: SL4_Survey_August_2011


I have the following services on glite 3.1

-> CEs dgc-grid-40, and dgc-grid-44

Soon to be replace by CreamCEs

-> CE dgc-grid-35

it should be decommissioned by the end of the year

-> BDII

to be upgraded in the next few months

-> SE dgc-grid-50

it has only 2% of the data at the site. I'm planning an upgrade for the
3rd week of December. Most of the data at Brunel is in dc2-grid-64,
glite 3.2 SE.

Topic: Site_information


Memory

1. Real physical memory per job slot:

dgc-grid-35: 1G dgc-grid-40: 2G dgc-grid-44: 1G

2. Real memory limit beyond which a job is killed:

n/a

3. Virtual memory limit beyond which a job is killed:

n/a

4. Number of cores per WN:

dgc-grid-35: 2 dgc-grid-40: 8 dgc-grid-44: 4

Comments:

Network

1. WAN problems experienced in the last year:

Main connection capped at 400Mb/s

2. Problems/issues seen with site networking:

Recently, problems with site DNS servers. These have now been addressed.

3. Forward look:

Comments:

Network link expected to increase to 1GB in the next quarter

Move to a new data centre in April

Topic: Site_status_and_plans

25 March 2011
One CreamCE in Production.

SL5 WNs

All WNs on SL5. New worker nodes to be deployed in April.


SRM

Storage available to reach 560 TB by end o March.


SCAS/glexec

glexec to be deployed in the first week of April/2011.


CREAM CE

One CreamCE in production.

Planned deployment:

Replacing 3 lcg-CEs with CreamCEs.

One Argus server to be deployed in April.