news from alberto et al. fibers document separated from the rest of the computing resources

News from Alberto et al.• Fibers document separated from the rest of the computing

resources• https://edms.cern.ch/document/1155044/1 • https://edms.cern.ch/document/1158953/1

• Documents finalized (end of August)• Power requirements: 100 kW total

Racks• Racks on Jura side: 800 mm depth (standard CERN racks)• Racks on Saleve side: 1000 mm depth• Dimensions of racks’ base plate is needed (for the supports)

Power• Computing nodes:

• 9kW/rack• 2 to 5 racks

• Storage nodes: • 5kW/rack• 3 racks

• Support: • 1/2 rack, 4kW

• DCS,DSS• 4 kW • 2 racks

• Network: 4kW• GTK:

• 3 kW/rack• 3 racks

+ cooling doors: 1 kW/door, 10kW

Total: 68 kW (include 50% safety margin: 95 kW)

Computing nodes• How much total computing power for 2012?• Specify AMD or INTEL?• How many processors? How many cores?

Intel Westmere architecture (32 nm):• Xeon 5600, 6cores

• X series, up to 3.33 GHz• E series, up to 2.66 GHz• L series, low-consumption, up to 2.26 GHz

• CERN Openlab tested system: • 2×X5670@2.93 GHz, 16 cores• 2×6 GB RAM, 450 W power load (full load), • 238 HEPSPEC06 (24 processes)=20/core• In one 9 kW rack, 20 systems, 4760 HEPSPEC06, approximately 1250 kSi2k

• How much RAM? How much local disk space?• How many 10 Gb and 1 Gb ports/machine? (How many switches?)

Storage nodes• How much disk for 2012?• Availability of CMS hardware• 12 disk arrays with 12 disks each and redundant fiber channel interface:

• 120 disks WD raptor 300GB (bought at the beginning of the year) • 24 disks 1TB • 2x 32 port fiberchannel switch • 10 DELL servers 2950 with redundant fiber channel cards.

• Questions:• More technical details asked to our CMS colleagues• Cost?• Maintenance?

Procurement• Racks and cooling doors

• Difficult/not possible to join CERN-IT tender• Network apparata

• Handled by CERN-IT, installation, management, maintenance included• Computing & storage nodes

• How to handle the purchase/acquisition? (CERN, Mainz?...)

• Time plan for purchase and delivery?

Man power• Who and when is going to do/follow/check:• Installation• Commissioning• Operations

• More: • What about UPS system purchase/installation?• Remote monitoring of cooling doors (discussion going on with

DCS central team