| Start: | 2026-01-01 09:00:00 |
| End: | Unknown |
| Updated: | 2026-07-14 00:08:32 |
| Level: | medium |
An issue with the I/O system of Hortense is causing performance problems. This might lead to file system lags and delays. We are in contact with our vendor ATOS to in-depth research and pinpoint the underlying issue. However, identifying (and hopefully resolving) this issue will likely still take considerable time.
| Start: | 2026-08-03 08:00:00 |
| End: | 2026-08-07 18:00:00 |
| Updated: | 2026-07-14 00:08:32 |
| Level: | high |
A scheduled maintenance will take place between Mon 3 August 2026 08:00 CET and Fri 7 August 2026 18:00 CET on Tier1 Hortense. The I/O subsystem will be upgraded. This is a remaining task from previous maintenance windows, which was postponed due to some unforeseen technical difficulties from the vendor side.
Tier1 Hortense will not be available in this period, including all workernodes as well as login and debug nodes, and the dedicated Tier1 scratch filesystem. Please be aware that during the maintenance period, you will not be able to access any data located on Tier1 Hortense system.
| Start: | 2026-09-15 08:00:00 |
| End: | 2026-09-15 18:00:00 |
| Updated: | 2026-07-14 00:08:32 |
| Level: | high |
For an electrical inspection of the UGent datacenter, all main power will have to be shut down.
Tier1 Hortense will be offline, including workernodes, login- and debugnodes and the dedicated Tier1 scratch system.