# Data staging and caching challenges in the terabit/s era

- Institution: CERN
- Speaker: Maiken Pedersen
- Year: 2026
- Language: English
- Subjects: Computer science
- Source: [CERN](https://videos.cern.ch/record/3025426)
- Licence: [CERN](https://copyright.web.cern)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

The Nordic Tier-1 site for LHC data and computing is a distributed one, where computing and storage is spread over several countries. In order to do efficient computing on the data, a local low-latency cache is needed close to each computing cluster.

This talk will give an overview on how this works in production today, with data throughputs in the 100Gbit/s range, and then talk about the challenges ahead where scaling of a factor of 10-20 on top of that will be needed to keep up with the increased data rates from the High-Luminosity LHC upgrade that comes online in 2030.

The challenges of staging data at 1 Tbit/s will be discussed from networking, hardware, software, and operational points of view.

00:00:00 Slide 1

00:00:20 Slide 2

00:00:39 Slide 3

00:01:16 Slide 4

00:01:42 Slide 5

00:02:02 Slide 6

00:03:39 Slide 7

00:04:35 Slide 8

00:05:11 Slide 9

00:06:13 Slide 10

00:07:59 Slide 11

00:09:16 Slide 12

00:09:45 Slide 13

00:10:53 Slide 14

00:11:45 Slide 15

00:12:17 Slide 16

00:12:57 Slide 17

## Lectures

1. [Data staging and caching challenges in the terabit/s era](https://invisiblenetwork.ai/learn/cern/3025426/628698d32645), 13 min (CERN's player)