Difference between revisions of "UKI-NORTHGRID-LANCS-HEP"
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Latest revision as of 14:15, 25 July 2012
Contents
UKI-NORTHGRID-LANCS-HEP
Topic: HEPSPEC06
OS+cores,Bits | OS | Kernel | 32/64 | mem | gcc | Total | Per Core |
Dual Core Intel 3.00 GHz Xeon | SL4.6 | 2.6.9-78.0.1.ELsmp | 64/32 | 2GB | 3.4.6 | 10.86 | 5.43 |
Dual CPU, Quad core Intel Xeon E5440 @ 2.83GHz | SL4.6 | 2.6.9-78.0.1.ELsmp | 64/32 | 16GB | 3.4.6 | 70.98 | 8.84 |
Dual CPU, Quad core Intel Xeon E5520 @ 2.27GHz | SL4.6 | 2.6.9-78.0.1.ELsmp | 64/32 | 24GB | 3.4.6 | 97.56 | 12.20 |
Topic: Middleware_transition
gLite3.2/EMI
ARGUS - Not yet, need to plan this one out.
BDII_site - glite-BDII_site-3.2.10-1.sl5.x86_64
CE (CREAM/LCG) - glite-CREAM-3.2.10-0.sl5 / lcg-CE-3.1.40-0
glexec - Not yet (waiting on relocatable version)
SE - DPM-server-mysql-1.7.4-7sec.sl5.x86_64 (will upgrade to 1.8 towards the end of the month/start of October)
UI - SL5
WMS -NA
WN - glite-WN-3.2.9-0.sl5 tarball
Comments
We're planning to tentatively test the waters with UMD/EMI by installing a supplimentary cream CE with it, however like our peers we'd rather let the dust settle for a bit and only swap over when the benefits outweight the risks.
Topic: Protected_Site_networking
- Both the local user and grid site are on separate, routable subnets
- The Tier-2 is actually split across two, the "Grid" and the "HEC".
- The Tier-2 is further split between a private and public VLANs.
- There is a 10G backbone to the Tier 2 network.
- There is a 1-Gb dedicated light path from the Tier-2 to RAL, and we also share the University's link to Janet (although I believe we are capped at 1Gb/s).
- All switches are managed by ISS. We have access to the University Cacti pages.
Topic: Resiliency_and_Disaster_Planning
- This section intentionally left blank
Topic: SL4_Survey_August_2011
lcg-CE: and having problems with CREAM, so will remain until that's done.
Topic: Site_information
Memory
1. Real physical memory per job slot:
2. Real memory limit beyond which a job is killed:
3. Virtual memory limit beyond which a job is killed:
4. Number of cores per WN:
Comments:
Network
1. WAN problems experienced in the last year:
2. Problems/issues seen with site networking:
3. Forward look:
Comments:
Topic: Site_status_and_plans
SL5 WNs
Current status (date): 22/3/2011
All nodes are on Sl5 or CentOs 5.
Planned upgrade:
NA
Comments:
SRM
Current status (date): 22/3/2011
All SL5 DPM 1.7.4-7
Planned upgrade:
Plan to upgrade to 1.8 in the near future.
Comments:
SCAS/glexec
Current status (date): 22/3/2011
Had some testing experiance, plan to roll it out after discussion with local admins and other work. Tarball install wanted, so will require liasing with other tar-sites.
Planned deployment:
ETA May
Comments:
CREAM CE
Current status (date): 22/3/2011
New cluster behind CREAM CE. Running without trouble.
Planned deployment:
Plan to deploy another cream ce for our other resources in April.
Comments: