- Free allowance
- 'The first 5TB of storage for each PI, on one project, is available to researchers at all UT System institutions at no cost.
- Verdict
- fails: quotathe free allowance is too small to matter
- Cost
- free tier
- Identity
- institutionno card, no phone
- Binding limit
- volume-quotafirst 5TB for each PI on one project is free for UT System institutions; larger allocations cost $60/TB/year; limit of 200,000 files per allocated terabyte (1 million files per 5TB)
- Evidence
- documented18 sources; a first-party page was read and the sentence quoted
- Freshness
- stale on 2026-12-05checked 2026-11-04 (live); stale on 2026-12-05
| Free tier | 'The first 5TB of storage for each PI, on one project, is available to researchers at all UT System institutions at no cost. For storage needs larger than 5TB, and for multiple project allocations, access to Corral is available at a cost of $60/TB/year.' 40 PB online + tape replica. unit TB; metered on stored-bytes; Priced beyond 5 TB at $60/TB/year: a 10 TiB allocation costs $360 per year and a 20 TiB allocation $1020 per year after the free 5 TB, for a PI at a US based institution, if allocations are whole TB. |
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| Price | none stated |
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| Limits | - volume-quota (binding) first 5TB for each PI on one project is free for UT System institutions; larger allocations cost $60/TB/year source
- volume-quota (binding) limit of 200,000 files per allocated terabyte (1 million files per 5TB) source
5TB free for each PI on one project (UT System institutions), $60/TB/year beyond; a hard cap of 200,000 files per allocated terabyte. Allocations last one year. S3 access needs an allocation of at least 25TB. |
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| Binding | volume-quota the free allocation is 5TB for each PI and every allocation carries a cap of 200,000 files per allocated terabyte; beyond 5TB the price is $60/TB/year |
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| Identity | institution PI status needs a faculty, staff or postdoctoral position at a US based institution; users from non-US institutions are not eligible for PI status but may be invited to a project by a US based PI |
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| Egress | Not metered in the doc, but there is no public HTTP download path — Corral is a mounted/POSIX store, so serving is not its purpose. |
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| Per-object cap | No limitation on the size of files; by default 1 million files per 5TB allocated (200,000 files per allocated terabyte). |
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| Retention | Files are never purged by automated processes; each allocation lasts one year and must be renewed. After expiry data is typically retained for 6 months, but may be deleted at any time at the discretion of the system administrators unless an allocation request is pending. |
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| Interface | sftp, scp, rsync, s3-compatible sftp |
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| Tooling | scp and SFTP (Cyberduck documented) to data.tacc.utexas.edu; an S3 version 4 compatible endpoint is available only by request for allocations of at least 25TB, not for protected data; TACC allocation portal. rsync is not named on the page. |
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| Composes with | 5 TB free × UT System PIs, then linear $60/TB/yr. The file-count rule is the real limiter: 'There is also a limit of 200,000 files per allocated terabyte' — at 5 TB that is 1 million files. |
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| Reliability | The free 5 TB applies to UT System institutions only, and PI status needs a US based institution; storage beyond 5 TB costs $60/TB/year. Each allocation lasts one year and must be renewed, so this is a 5 TB niche tier, not a free archive. |
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| Evidence note | documented re-read on 2026-11-03: the vendor pages https://docs.tacc.utexas.edu/hpc/corral/ (free 5TB, $60 per TB per year beyond, file count limit, one-year allocations, S3 by request, scp transfer) and https://tacc.utexas.edu/use-tacc/allocations/ (PI eligibility at US based institutions) |
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| Parsed numbers | - has-free-tier 1
- volume-quota 5 TB
- volume-quota 5 TB
|
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