Hi Peter, For server hardware we generally recommend generic x86_64 servers, e.g. Supermicro with 2x CXeon 56xx , running Linux as the operating system. The dual socket Xeon 56xx series is a better deal in terms for price performance than the 4 socket Xeon 75xx series. As x86_64 is today' s principal server platform, our code is specially optimized for this, for example better than for SPARC, on which it also runs. Database files are preferrably to be kept on SSD’s, which can be run in software RAID 5 which is usually faster then hardware.
The Dell server spec below should also suffice, the key requirement for performance being having sufficient memory available to load the entire database working set in memory. As a rule we recommend 32GB per billion triples and given that DBpedia consists of about 1 billions triples 32GB memory should suffice, especially in conjunction with SSD’s. Although for future growth, assuming the datasets are likely to grow over time a server with more memory capacity might be worth considering ? Best Regards Hugh Williams Professional Services OpenLink Software Web: http://www.openlinksw.com Support: http://support.openlinksw.com Forums: http://boards.openlinksw.com/support Twitter: http://twitter.com/OpenLink On 23 Jun 2011, at 23:36, Peter DeVries wrote: > Thanks Ivan, > > I guess the think that they are being clever by not allowing linking to a > product page. > > Thanks for the specs, > > This will help, > > - Pete > > ======= > Dell PowerEdge R2100 II Rack Server with One Quad-Core Intel® Xeon® > processor E3-1200 > > Up to 32GB (4 DIMM slots): 1GB/2GB/4GB/8GB DDR3 up to 1333MHz > > Intel® Xeon® E3-1220 3.10 GHz, 8M Cache, Turbo, Quad Core/4T (80W) [add > $170.00] > Intel® Xeon® E3-1220L 2.20 GHz, 3M Cache, Turbo, Dual Core/4T (20W) [add > $180.00] > Intel® Xeon® E3-1230 3.20 GHz, 8M Cache, Turbo, Quad Core/8T (80W) [add > $230.00] > Intel® Xeon® E3-1240 3.30 GHz, 8M Cache, Turbo, Quad Core/8T (80W) [add > $270.00] > Intel® Xeon® E3-1260L 2.40 GHz, 8M Cache, Turbo, Quad Core/8T (45W) [add > $310.00] > Intel® Xeon® E3-1270 3.40 GHz, 8M Cache, Turbo, Quad Core/8T (80W) [add > $400.00] > Intel® Xeon® E3-1280 3.50 GHz, 8M Cache, Turbo, Quad Core/8T (95W) [add > $800.00] > > Cabled Hard Drive Options: > 3.5" SAS (15K, 10K), nearline SAS (7.2K), SATA (5.4K, 7.2K) > > Maximum Internal Storage: > Up to 4TB11 > > External Storage: > For information about Dell external storage options, visit Dell.com/Storage. > Drive Bays > Cabled options available: > Up to two 3.5" SAS or SATA drives > > Slots > 1 PCIe x16 G2 slot > > RAID Controllers (optional) > Internal Controllers: > PERC H200 (6Gb/s) > PERC S100 (software based) > PERC S300 (software based) > > External Controllers: > 6GB/s SAS HBA > > Optional Communications > Broadcom® NetXtremeTM 5709 Dual Port Gigabit Ethernet NIC, Copper, w/TOE > PCIe x4 > Broadcom® NetXtremeTM 5709 Dual Port Gigabit Ethernet NIC, Copper, TOE/iSCI > PCIe x4 > Broadcom® NetXtremeTM 5709 Quad Port Gigabit Ethernet NIC, Copper, w/TOE/ > iSCI PCIe x4 > Intel Gigabit ET Dual Port Adapter, Gigabit Ethernet NIC, PCIe x4 > Intel Gigabit ET Quad Port Adapter, Gigabit Ethernet NIC, PCIe x4 > > Power Supply > Single cabled power supply (250W) > > Availability > Quad-pack LED diagnostic, ECC Memory, add-in RAID, TPM/C-TPM > > Embedded Network Controller > One Dual port Broadcom BCM 5716 > > Graphics > Matrox G200eW w/ 16MB memory > > Chassis > Rack Chassis > 42.6 H x 434 W x 394.3 D (mm) > 1.66" H x 17.09" W x 15.52" D (in) > > Rack Support > ReadyRailsTM static rails for tool-less mounting in 4-post racks with square > or unthreaded round holes or tooled mounting in 4-post threaded and 2-post > (Telco) racks. > Management > BMC, IPMI 2.0 compliant > DellTM OpenManageTM > Unified Server Configurator > LifeCycle Controller enabled via optional: iDRAC6 Express, iDRAC6 Enterprise > and Vflash > > Acoustics > Typically configured3 3.5" cable chassis in 23 ± 2 °C ambient > Idle: LwA-UL4 = 5.2 bels; LpA5 = 40 dBA > > Regulatory and Environmental Compliance > Regulatory Model: E10S > Regulatory Type: E10S002 > > I guess the think that they are being clever by not allowing linking to each > product page. > > Thanks for the specs, > > This will help, > > - Pete > > > On Thu, Jun 23, 2011 at 5:15 PM, Ivan Mikhailov <imikhai...@openlinksw.com> > wrote: > Hello Peter, > > The link does not show anything except title page, it depends on your > login and/or other credentials. Could you please cut+paste the selected > configuration (and its price) into the mail? > > The last box I've assembled for Virtuoso development was > > 6 * RAM DDR-3 8Gb > 1 * Intel 5520HCR Motherboard > 2 * Intel Xeon E5620 CPUs > 3 * WD5003ABYX SATA-II HDDs > 1 * Chieftek BX-02B-B-SL miditower > 1 * Cooler Master RS-A00-AMBA-J3 ATX power > (plus DVD, video, CPU coolers, case fans) > > Some about $4100 last December, now it should become cheaper. It has > spare room for RAM and disks so it can be used for relatively long time. > > Best Regards, > > Ivan Mikhailov > OpenLink Software > http://virtuoso.openlinksw.com > > > On Thu, 2011-06-23 at 15:53 -0500, Peter DeVries wrote: > > Hi, > > > > > > I need to spec out a system that will be probably be slightly larger > > than the DBpedia data set. > > > > > > I was thinking about this > > system > > http://premierconfigure.us.dell.com/dellstore/config.aspx?c=&ci=E1794&customer_id=RC956904&~tgt=cfg&l=en&s=hied&cs=RC956904 > > > > > > In my experience, performance etc. seems to be based mainly on IO in > > both memory and disk. > > > > > > Unfortunately I don't know a lot of the specific's like how many > > triples there will actually be but I thought I should post to the list > > to see what the thoughts are on CPU vs Disk vs RAM etc. > > > > > > The system above seems to have a number of advantages, but will max > > out at 32 GB of RAM. > > > > > > Also to what extent is disk speed and issue once all the data has been > > loaded into RAM? > > > > > > Would a system based on SSD's be better than one with 15K SAS drives? > > > > > > Thanks in Advance, > > > > > > - Pete > > > > > > > -- > ------------------------------------------------------------------------------------ > Pete DeVries > Department of Entomology > University of Wisconsin - Madison > 445 Russell Laboratories > 1630 Linden Drive > Madison, WI 53706 > Email: pdevr...@wisc.edu > TaxonConcept & GeoSpecies Knowledge Bases > A Semantic Web, Linked Open Data Project > -------------------------------------------------------------------------------------- > ------------------------------------------------------------------------------ > All the data continuously generated in your IT infrastructure contains a > definitive record of customers, application performance, security > threats, fraudulent activity and more. Splunk takes this data and makes > sense of it. Business sense. IT sense. Common sense.. > http://p.sf.net/sfu/splunk-d2d-c1_______________________________________________ > Virtuoso-users mailing list > Virtuoso-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/virtuoso-users
