{"eid":"naiss","name":"NAISS Arrhenius Disk / SENS Storage","domain":"naiss.se","resolved_by":"domain","topics":["storage"],"n_records":1,"best_vorder":1,"review":null,"aliases":["NAISS Arrhenius Disk / SENS Storage","NAISS Arrhenius Disk / SENS Storage (Sweden) — 25 PB and 10 PB project storage, applied in GiB","naiss.se"],"records":[{"rid":"storage/naiss-arrhenius-disk-sens-storage-25-pb-and-10-pb-projec","card":{"rid":"storage/naiss-arrhenius-disk-sens-storage-25-pb-and-10-pb-projec","eid":"naiss","topic":"storage","slug":"naiss-arrhenius-disk-sens-storage-25-pb-and-10-pb-projec","provider":"NAISS Arrhenius Disk / SENS Storage (Sweden) — 25 PB and 10 PB project storage, applied in GiB","url":"https://supr.naiss.se/round/2026medium/","domain":"naiss.se","category":"academic","tier":null,"verdict":"qualifies-with-caveat","vorder":1,"grp":"usable","confidence":"reported","binding":"per-object-cap","identity_kind":"institution","identity_basis":"stated","needs_card":0,"needs_phone":0,"needs_id":0,"needs_institution":1,"country":null,"crypto":null,"interfaces":"s3,sftp,scp,rsync","egress_metered":0,"per_object_bytes":53656167435468,"retention_days":null,"verified_at":"2026-10-21T00:00:00.000Z","verified_basis":"inherited","checked_on":"2026-10-21","stale_on":"2026-11-04","n_evidence":4,"usd_month":null,"usd_per_tb_month":null,"summary":"Project storage is applied for in GiB through SUPR, with generous upper limits: Arrhenius Disk shows 'Upper Limit 50,000', 'Default Storage 250', 'Available ...","duplicate_of":null,"n_unknown":4},"record":{"topic":"storage","slug":"naiss-arrhenius-disk-sens-storage-25-pb-and-10-pb-projec","provider":"NAISS Arrhenius Disk / SENS Storage (Sweden) — 25 PB and 10 PB project storage, applied in GiB","url":"https://supr.naiss.se/round/2026medium/","category":"academic","free_tier":{"stated":"Project storage is applied for in GiB through SUPR, with generous upper limits: Arrhenius Disk shows 'Upper Limit 50,000', 'Default Storage 250', 'Available 4,000,000' (GiB — so 50,000 GiB ≈ 48.8 TiB ceiling, 250 GiB default); Klemming 'Upper Limit 100,000' with 'Available 5,850,000' GiB. Arrhenius SENS Storage is a 10 PB system for sensitive data, 'only available as when applying for a related compute resource'.","unit":"GiB","metered_on":"stored-bytes","source_url":"https://supr.naiss.se/round/2026medium/","read_on":"2026-10-21","notes":null},"per_object_cap":{"stated":"48.8 TiB ceiling","bytes":53656167435468,"source_url":"https://supr.naiss.se/round/2026medium/","notes":"not stated"},"retention":{"stated":"not stated","source_url":"https://supr.naiss.se/round/2026medium/","notes":"not stated"},"egress":{"terms":"Free national e-infrastructure; no egress meter documented.","metered":false},"interface":["s3","sftp","scp","rsync"],"interface_detail":"sftp","tooling":"Lustre/POSIX on Arrhenius Disk (rsync/scp/sftp from a login node), no published S3 endpoint for the Disk resource. SUPR is the application portal.","chaining":"Small allocations are reviewed WEEKLY — 'Proposals are reviewed weekly throughout the year' — so a Swedish-affiliated PI can iterate to the ceiling in weeks rather than waiting for an annual round. Medium is the tier that carries the 50 TB-class ceilings.","limits":[{"kind":"per-object-cap","value":"48.8 TiB ceiling","source":"https://supr.naiss.se/round/2026medium/"}],"limits_note":"per-object-cap: not applicable (POSIX/Lustre). Retention: 'There is no backup of Arrhenius Disk' and storage is tied to the project; NAISS Large requires prior PI status on a Medium project. request-rate: not published. Gate: heavy — 'you must be a scientist in Swedish academia, at least at the level of assistant professor' for Medium, PhD student + 20% appointment for Small, and Large requires 'an appointment of at least 60 percent at a Swedish university'.","identity_cost":{"kind":"institution","detail":"derived from the record's prose, not from an identity field, and no signup was executed: iewed weekly throughout the year' — so a Swedish-affiliated PI can iterate to the ceiling in weeks rather than waiting for an annual round. Medium is the tier that carries the 50 TB-","country":null},"reliability_note":"No backup on Arrhenius Disk or SENS Storage. Several listed resources (Alvis, Mimer) are mid-decommission with allocations being migrated — check resource status before requesting.","confidence":"reported","confidence_note":"One page read moves it to documented.","evidence":[{"url":"https://supr.naiss.se/round/2026medium/","date":"2026-10-21","proved":"resource table: 'Arrhenius Disk | NAISS | 50 000 | 250 | 4 000 000' (GiB), 'Klemming | PDC | 100 000 | 500 | 5 850 000'; Alvis and Mimer flagged as decommissioned/migrating"},{"url":"https://supr.naiss.se/resource/arrhenius-disk/","date":"2026-10-21","proved":"'The total size of Arrhenius Disk is 25 PB. There is no backup of Arrhenius Disk.' Eligibility by tier."},{"url":"https://supr.naiss.se/resource/arrhenius-sens-storage/","date":"2026-10-21","proved":"'The total size of Arrhenius SENS Storage is 10 PB. There is no backup'; 'only available as when applying for a related compute resource'"},{"url":"https://user.naiss.se/allocations/small/","date":"2026-10-21","proved":"'Proposals are reviewed weekly throughout the year'; 'at least a PhD student and hold an appointment of at least 20 percent at a Swedish university'"}],"verdict":"qualifies-with-caveat","verified_at":"2026-10-21T00:00:00.000Z","notes":"Project storage is applied for in GiB through SUPR, with generous upper limits: Arrhenius Disk shows 'Upper Limit 50,000', 'Default Storage 250', 'Available 4,000,000' (GiB — so 50,000 GiB ≈ 48.8 TiB ceiling, 250 GiB default); Klemming 'Upper Limit 100,000' with 'Available 5,850,000' GiB. Arrhenius SENS Storage is a 10 PB system for sensitive data, 'only available as when applying for a related compute resource'.","extras":{},"binding":"per-object-cap","binding_note":"the per-object cap sets the shard size and therefore the object count; it bounds the total more tightly than any headline quota"},"claims":[{"path":"$.free_tier.stated","kind":"free-quota","num":50000.0,"unit":"GiB","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"},{"path":"$.limits[0].value","kind":"limit:per-object-cap","num":48.8,"unit":"TiB","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"}],"unknown":[["$.free_tier.notes","process"],["$.per_object_cap.notes","not-extracted"],["$.retention.notes","not-extracted"],["$.retention.stated","not-extracted"]],"history":[],"drift":[]}]}