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Kulturarw ³

Kulturarw ³. The Swedish WWW Archive Eller, att fånga den V ärlds V ida V även http://kulturarw3.kb.se. Goals. All www and gopher pages in Sweden pictures, video etc .se and generic TLD’s suecana All articles in electronic journals All Swedish newsgroups / mailing lists

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Kulturarw ³

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  1. Kulturarw³ The Swedish WWW Archive Eller, att fånga den VärldsVidaVäven http://kulturarw3.kb.se

  2. Goals • All www and gopher pages in Sweden • pictures, video etc • .se and generic TLD’s • suecana • All articles in electronic journals • All Swedish newsgroups / mailing lists Limitations versus RA and ALB

  3. Organisation • Project group: two persons • Steering group: four persons • Reference group: representatives from ALB, RA, Lund Univ, SUNET etc • International cooperation • NWA - Nordic Web Archive • Nat. Libraries

  4. Strategy Selection? • How to know what is important? • Labour intense Collect everything using automatic software • Gets everything • Less labour intense • Computer memory is cheap

  5. Strategy • Take snapshots of the Swedish web a few times a year. • In the future, take newspapers every day, others every month etc What is Sweden? • .se • .com, .org and .net with Swedish address/telephone number • Swedish .nu (Niue) • Suecana

  6. Robot, Software • Modified version of Nordic Web Index’s robot software (NetLab, Lunds univ.) • Important!indexing is not archiving! • Save data in MIME format • Temporary storage, media: DLT-tape • Data rate, 5MB/s • Capacity, 20 GB • Durability, 1 000 000 pass • Data integrity, error detection and correction • Low cost per GB stored • Access time too long (?)

  7. Statistics • 15 MURL (including duplicates) • 240 Gbytes • 54 000 sites • 32 300 .se • 14 800 .com, .org, .net and .edu • ~100 suecana • 6 800 Niue • Compare, legal deposit • Printed materiel: 1,7 km/year • The web: approx. 50 km on swedish web.

  8. Statistics • 363 different MIME types found. Many the same, some garbage. • 7.0 M text/html • 4.2 M image/gif • 3.0 M image/jpeg • 0.3 M text/plain • 0.5 M others • text/html + image/gif + image/jpeg + text/plain comprises 97% ofthedocuments.

  9. The Archive • Goals • Create copies of the swedish web at several times (compare index services) • Surf the web in space and time • Search • Accessible in the future  migration

  10. The Archive Disk (Optical disk) Magnetic tape HSM:Most data on magnetic tapes, staged to disk when needed

  11. The Archive What are we archiving? • Magnetic tapes? • Bits and bytes? • Intellectual content?

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