Site is being reinstalled from scratch on new resources
NGI_IT
CNR-ILC-PISA
TIERNA
2025-08-31 15:00
2025-09-30 15:00
OUTAGE
SCHEDULED
Upgrade farm to AlmaLinux
NGI_DE
FZK-LCG2
TIER1
2025-09-24 06:00
2025-10-06 06:31
OUTAGE
SCHEDULED
System updates
NGI_FRANCE
IN2P3-CPPM
TIER2
2025-09-15 16:00
2025-10-08 07:33
OUTAGE
SCHEDULED
update and rebuilding site
NGI_CH
CSCS-LCG2
TIER2
2025-09-22 07:00
2025-09-30 18:00
WARNING
SCHEDULED
Software upgrade of compute nodes and ARC endpoints
NGI_NDGF
FI_HIP_T2
TIER2
2025-09-19 08:00
2025-10-19 08:00
OUTAGE
SCHEDULED
Complete update of the computing nodes to Almalinux
NGI_FRANCE
IN2P3-CC
TIER1
2025-09-29 06:00
2025-09-30 09:14
WARNING
SCHEDULED
Tape library maintenance
NGI_IT
RECAS-NAPOLI
TIERNA
2025-09-29 08:00
2025-10-06 17:00
OUTAGE
SCHEDULED
Major upgrade of Data Center Cooling System
NGI_IT
INFN-MILANO-ATLASC
TIER2
2025-09-22 07:00
2025-09-30 16:54
OUTAGE
SCHEDULED
Upgrade of the server room cooling system
NGI_IT
INFN-NAPOLI-ATLAS
TIER2
2025-09-29 08:00
2025-10-07 18:00
OUTAGE
SCHEDULED
Major works on cooling
NGI_UK
UKI-SCOTGRID-ECDF
TIER2
2025-09-28 09:00
2025-10-06 13:00
OUTAGE
SCHEDULED
Delays in bringing equipment back online at ACF
NGI_UK
UKI-SCOTGRID-GLASGOW
TIER2
2025-09-29 08:00
2025-10-01 08:48
OUTAGE
SCHEDULED
Upgrading CE to ARC 7
NGI_FRANCE
IN2P3-CC
TIER1
2025-11-25 05:00
2025-11-25 18:00
OUTAGE
SCHEDULED
Quarterly scheduled site maintenance
EGI.eu
GRIDOPS-GOCDB
TIERNA
2025-10-01 14:00
2025-10-01 16:00
WARNING
SCHEDULED
These systems will be routinely patched and rebooted during this time. As such, they will be unavailable for approximately 15 minutes during this window.
NGI_CH
CSCS-LCG2
TIER2
2025-10-06 06:00
2025-10-07 14:23
OUTAGE
SCHEDULED
Alps network reconfig
NGI_NDGF
NDGF-T1
TIER1
2025-09-29 15:00
2025-10-03 15:00
WARNING
UNSCHEDULED
Some files are unavailable due to broken hardware.
NGI_IT
CNR-ILC-PISA
TIERNA
2025-09-30 15:00
2025-10-31 15:00
OUTAGE
SCHEDULED
Upgrade farm to AlmaLinux
NGI_DE
FZK-LCG2
TIER1
2025-10-08 07:00
2025-10-08 11:00
OUTAGE
SCHEDULED
Security updates
NGI_CH
CSCS-LCG2
TIER2
2025-10-02 08:00
2025-10-08 23:00
WARNING
SCHEDULED
Software upgrade of compute nodes and ARC endpoints
NGI_DE
FZK-LCG2
TIER1
2025-10-10 15:00
2025-10-11 17:00
OUTAGE
SCHEDULED
Planned power outage of tape backend
NGI_DE
FZK-LCG2
TIER1
2025-10-01 02:00
2025-10-01 08:02
OUTAGE
UNSCHEDULED
Squid downtime
NGI_DE
DESY-HH
TIER2
2025-10-01 12:00
2025-10-01 14:00
WARNING
UNSCHEDULED
gradually rolling out refactored job routing configurations on the CEs, should be transparent
CERN
CERN-PROD
TIER0
2025-10-07 08:00
2025-10-07 09:00
OUTAGE
SCHEDULED
CTA Service down during database intervention
AsiaPacific
JP-KEK-CRC-02
TIERNA
2025-10-09 00:00
2025-10-09 02:30
WARNING
SCHEDULED
GHI stage/purge/migration are unavailable because of software update works. The data on disk cache will be accessible, the data only on tape will be inaccessible during the downtime.
NGI_CH
CSCS-LCG2
TIER2
2025-10-02 08:00
2025-10-08 23:00
WARNING
UNSCHEDULED
Software upgrade of compute nodes and ARC endpoints
NGI_IT
INFN-PISA
TIER2
2025-10-06 03:00
2025-10-07 13:15
OUTAGE
SCHEDULED
Storage system maintenance intervention
NGI_UK
UKI-SOUTHGRID-BRIS-HEP
TIER2
2025-10-18 08:00
2025-10-18 20:00
WARNING
SCHEDULED
Site firewall hardware update
EGI.eu
GRIDOPS-GGUS
TIERNA
2025-10-08 08:00
2025-10-08 09:00
OUTAGE
SCHEDULED
GGUS maintenance and update
NGI_UK
UKI-LT2-Brunel
TIER2
2025-10-16 07:00
2025-10-16 11:00
OUTAGE
SCHEDULED
Firewall upgrade
ROC_Canada
CA-WATERLOO-T2
TIERNA
2025-10-02 16:00
2025-11-01 03:59
OUTAGE
UNSCHEDULED
New site deployment continues
NGI_UK
UKI-SCOTGRID-GLASGOW
TIER2
2025-10-06 07:00
2025-10-07 11:11
OUTAGE
SCHEDULED
Upgrading CEs to ARC 7
EGI.eu
GRIDOPS-GOCDB
TIERNA
2025-10-07 08:00
2025-10-07 11:00
WARNING
SCHEDULED
These systems will be read-only during this window to facilitate the application of new WLCG scope tags as part of IMSCHM-317
NGI_IT
RECAS-NAPOLI
TIERNA
2025-10-06 16:00
2025-10-13 17:00
OUTAGE
UNSCHEDULED
Major upgrade of Data Center Cooling System
NGI_UK
UKI-SCOTGRID-ECDF
TIER2
2025-10-06 13:00
2025-10-13 13:00
OUTAGE
UNSCHEDULED
Downtime at site extended due to problems with networking equipment
NGI_NDGF
NDGF-T1
TIER1
2025-10-07 11:00
2025-10-08 11:00
WARNING
SCHEDULED
Hardware repairs, some files may be unavailable.
NGI_IT
INFN-NAPOLI-ATLAS
TIER2
2025-10-07 18:00
2025-10-13 18:00
OUTAGE
SCHEDULED
Major works on cooling - extension
AsiaPacific
INDIACMS-TIFR
TIER2
2025-10-07 06:30
2025-11-30 17:30
OUTAGE
UNSCHEDULED
Recovering T2 services
NGI_IT
INFN-MIB
TIERNA
2025-10-07 14:00
2025-10-13 09:01
OUTAGE
UNSCHEDULED
services upgrade an test
NGI_IT
INFN-TRIESTE
TIERNA
2025-10-06 16:20
2025-10-07 15:45
OUTAGE
UNSCHEDULED
Power failure
NGI_FRANCE
IN2P3-CPPM
TIER2
2025-10-08 09:30
2025-10-09 10:00
OUTAGE
UNSCHEDULED
update and rebuilding site new downtime to activate storage
NGI_FRANCE
IN2P3-CPPM
TIER2
2025-10-09 10:00
2025-10-15 10:00
OUTAGE
SCHEDULED
update and rebuilding site new downtime to activate storage
NGI_UK
UKI-LT2-QMUL
TIER2
2025-10-09 13:00
2025-10-09 15:00
WARNING
SCHEDULED
update to arc 7
NGI_DE
FZK-LCG2
TIER1
2025-10-08 11:00
2025-10-08 11:25
OUTAGE
UNSCHEDULED
Extension to previous storage downtime
NGI_DE
DESY-ZN
TIER2
2025-11-03 06:00
2025-11-04 08:00
OUTAGE
SCHEDULED
Electrical power maintenance
NGI_DE
DESY-ZN
TIER2
2025-11-04 08:00
2025-11-07 14:00
OUTAGE
SCHEDULED
Running on emergency power, no computing resources online during this time
NGI_UK
UKI-SCOTGRID-GLASGOW
TIER2
2025-10-13 07:00
2025-10-14 10:27
OUTAGE
SCHEDULED
Upgrading CE to ARC 7
NGI_NL
NIKHEF-ELPROD
TIER1
2025-10-13 08:00
2025-10-13 16:00
WARNING
SCHEDULED
Upgrade of frontier squids, one at a time, to alma 9
NGI_CH
CSCS-LCG2
TIER2
2025-10-13 09:00
2025-10-17 18:00
WARNING
SCHEDULED
ARC migration
EGI.eu
GRIDOPS-CheckIn
TIERNA
2025-10-15 06:00
2025-10-15 06:15
OUTAGE
SCHEDULED
EGI Check-in Keycloak Update to version 22.0.13-1.23
NGI_DE
FZK-LCG2
TIER1
2025-10-13 04:00
2025-10-29 16:00
OUTAGE
SCHEDULED
System updates
NGI_UK
UKI-LT2-QMUL
TIER2
2025-10-09 17:00
2025-10-10 10:00
WARNING
UNSCHEDULED
update to arcce07 take longer than expected
NGI_UK
RAL-LCG2
TIER1
2025-10-13 07:30
2025-10-15 16:30
OUTAGE
SCHEDULED
ARC7 Upgrade
Russia
JINR-T1
TIERNA
2025-10-13 07:00
2025-10-13 14:44
WARNING
SCHEDULED
tape library maintenance, buffer is not affected.
NGI_FRANCE
IN2P3-CPPM
TIER2
2025-10-28 05:00
2025-10-29 16:00
OUTAGE
SCHEDULED
power outage
NGI_UK
UKI-LT2-QMUL
TIER2
2025-10-10 11:10
2025-10-10 13:00
WARNING
UNSCHEDULED
upgrade to arcce07 not working properly
NGI_NL
SARA-MATRIX
TIER1
2025-10-27 07:00
2025-10-28 21:00
OUTAGE
SCHEDULED
Tape system maintenance
NGI_DE
FZK-LCG2
TIER1
2025-11-10 06:00
2025-11-21 18:00
OUTAGE
SCHEDULED
Relocation of physical tape library.
ROC_LA
SAMPA
TIERNA
2025-10-13 12:00
2025-10-13 14:00
OUTAGE
SCHEDULED
network equipment replacement
NGI_IT
INFN-NAPOLI-ATLAS
TIER2
2025-10-13 18:00
2025-10-21 18:00
OUTAGE
SCHEDULED
Major works on cooling - extension
NGI_IBERGRID
CIEMAT-LCG2
TIER2
2025-10-14 14:00
2025-10-14 18:00
OUTAGE
SCHEDULED
Update of our perimetral firewall
NGI_IT
INFN-MIB
TIERNA
2025-10-13 11:15
2025-10-16 00:00
WARNING
UNSCHEDULED
test on new service
NGI_IBERGRID
CIEMAT-LCG2
TIER2
2025-10-14 18:00
2025-10-14 20:00
OUTAGE
SCHEDULED
Update of our perimetral firewall (extension of a previous downtime)
NGI_IT
RECAS-NAPOLI
TIERNA
2025-10-13 16:00
2025-10-15 17:00
OUTAGE
UNSCHEDULED
Major upgrade of Data Center Cooling System
NGI_UK
UKI-SCOTGRID-ECDF
TIER2
2025-10-13 13:00
2025-11-10 13:00
OUTAGE
UNSCHEDULED
Downtime at site extended due to problems with person-power
NGI_FRANCE
IN2P3-CPPM
TIER2
2025-10-15 10:00
2025-10-17 10:00
OUTAGE
SCHEDULED
update and rebuilding site new downtime to activate storage
NGI_UK
RAL-LCG2
TIER1
2025-10-20 07:30
2025-10-22 15:00
OUTAGE
SCHEDULED
ARC7 Upgrade - ARC-CE01
NGI_UK
RAL-LCG2
TIER1
2025-10-22 08:30
2025-10-23 15:01
OUTAGE
SCHEDULED
ARC7 Upgrade - ARC-CE02
NGI_UK
RAL-LCG2
TIER1
2025-10-27 08:30
2025-10-29 16:00
OUTAGE
SCHEDULED
ARC7 Upgrade - ARC-CE03
NGI_UK
RAL-LCG2
TIER1
2025-10-29 08:30
2025-10-31 16:00
OUTAGE
SCHEDULED
ARC7 Upgrade - ARC-CE04
EGI.eu
GRIDOPS-SAM
TIERNA
2025-10-21 08:00
2025-10-21 15:00
OUTAGE
SCHEDULED
Infrastructure maintenance
NGI_DE
RWTH-Aachen
TIER2
2025-10-20 06:00
2025-10-27 14:07
OUTAGE
SCHEDULED
OS migration
NGI_IT
RECAS-NAPOLI
TIERNA
2025-10-15 20:00
2025-11-07 17:00
WARNING
UNSCHEDULED
Major upgrade of Data Center Cooling System
NGI_DE
LRZ-LMU
TIER2
2025-10-16 09:07
2025-10-17 12:50
OUTAGE
UNSCHEDULED
emergency shutdown of the whole computing centre due to water inleakage
NGI_IT
INFN-NAPOLI-ATLAS
TIER2
2025-10-21 17:00
2025-10-31 17:00
OUTAGE
SCHEDULED
Major works on cooling - extension
iris.ac.uk
IRISOPS-IAM
TIERNA
2025-11-04 08:30
2025-11-04 09:00
WARNING
SCHEDULED
IRIS IAM Upgrade to v1.12.3 - 04 Nov 2025 (Tuesday) from 8:30-9:00 AM (Europe/London) - At-risk
NGI_FRANCE
IN2P3-CPPM
TIER2
2025-10-17 11:30
2025-11-03 10:00
OUTAGE
SCHEDULED
update and rebuilding site CPU
NGI_UK
UKI-SOUTHGRID-RALPP
TIER2
2025-10-29 23:01
2025-11-03 16:00
OUTAGE
SCHEDULED
Electrical Safety Work in the Data Centre
NGI_CH
CSCS-LCG2
TIER2
2025-10-20 08:00
2025-10-24 08:46
WARNING
SCHEDULED
ARC migration
NGI_DE
LRZ-LMU
TIER2
2025-10-17 12:50
2025-10-20 14:23
OUTAGE
UNSCHEDULED
emergency shutdown of the whole computing centre due to water inleakage (CE only)
NGI_DE
DESY-HH
TIER2
2025-10-20 07:00
2025-10-20 09:43
WARNING
UNSCHEDULED
one ATLAS storage pool with hardware issues, all files on the affected pool are currently not accessible - under investigation
NGI_NL
SARA-MATRIX
TIER1
2025-10-20 11:00
2025-10-21 14:08
WARNING
UNSCHEDULED
Problems with a tape robot. Some tape files are currently unavailable.
NGI_DE
DESY-HH
TIER2
2025-10-20 09:45
2025-10-21 10:00
WARNING
UNSCHEDULED
one ATLAS storage pool with hardware issues, all files on the affected pool are currently not accessible - under investigation
NGI_IT
INFN-MIB
TIERNA
2025-10-24 14:00
2025-10-28 00:00
OUTAGE
SCHEDULED
power outage for maintenance of building electrical systems
NGI_NL
NIKHEF-ELPROD
TIER1
2025-10-21 13:00
2025-10-27 00:00
WARNING
SCHEDULED
Reinstalling ARC-CE dissel.nikhef.nl with HTCondor as the back-end
ROC_LA
SAMPA
TIERNA
2025-10-20 13:40
2025-10-22 01:40
OUTAGE
UNSCHEDULED
CVMFS Stratum 1 service is not updating revision of the repositories
NGI_NDGF
NDGF-T1
TIER1
2025-10-23 11:00
2025-10-23 13:00
WARNING
SCHEDULED
Short interruptions as pools(HPC2N & Vega) are rebooted for firmware upgrades. Some Atlas and Alice data affected.
EGI.eu
EGI-NOTEBOOKS
TIERNA
2025-10-20 17:00
2025-10-20 17:05
WARNING
UNSCHEDULED
Disable RTC in Notebooks
NGI_FRANCE
IN2P3-CC
TIER1
2025-11-03 07:00
2025-11-03 12:00
OUTAGE
SCHEDULED
Update to squid 6
NGI_CH
CSCS-LCG2
TIER2
2025-10-22 00:00
2025-10-22 10:11
OUTAGE
UNSCHEDULED
CLUSTER DOWN FIXING IN PROGRESS
ROC_LA
SAMPA
TIERNA
2025-10-22 07:30
2025-10-24 22:00
OUTAGE
UNSCHEDULED
CVMFS data exceeding the total data store
NGI_IBERGRID
UAM-LCG2
TIER2
2025-10-24 00:00
2025-10-24 04:00
WARNING
SCHEDULED
Networking work of RedIris
NGI_PL
NCBJ-CIS
TIERNA
2025-10-24 07:00
2025-10-24 08:20
OUTAGE
SCHEDULED
dCache update
NGI_IT
INFN-MILANO-ATLASC
TIER2
2025-10-24 12:00
2025-10-24 16:00
OUTAGE
SCHEDULED
Storage system firmware upgrade
NGI_IT
INFN-COSENZA
TIERNA
2025-10-23 15:00
2025-10-23 17:12
OUTAGE
UNSCHEDULED
Network Storage Down
NGI_DE
DESY-HH
TIER2
2025-10-24 03:30
2025-10-24 16:00
WARNING
UNSCHEDULED
critical update on storage pools - should be mostly transparent, transfers might get interrupted
NGI_DE
UNI-FREIBURG
TIER2
2025-10-29 08:00
2025-10-29 15:43
OUTAGE
SCHEDULED
HTcondor, ARC, C/T upgrade
NGI_IBERGRID
IFCA-LCG2
TIER2
2025-10-27 09:00
2025-10-28 00:00
OUTAGE
SCHEDULED
Annual Downtime Electrical Revision
NGI_DE
mainz
TIERNA
2025-10-27 10:00
2025-10-27 23:00
OUTAGE
SCHEDULED
Downtime for migration of file transfere server to RHEL9
NGI_IBERGRID
pic
TIER1
2025-10-28 06:00
2025-10-28 10:00
WARNING
SCHEDULED
Scheduled UPS Electrical Maintenance
NGI_IBERGRID
ifae
TIER2
2025-10-28 06:00
2025-10-28 10:00
WARNING
SCHEDULED
Scheduled UPS Electrical Maintenance
EGI.eu
GRIDOPS-GOCDB
TIERNA
2025-10-29 18:00
2025-10-29 21:00
OUTAGE
SCHEDULED
Due to maintenance of the primary JANET internet connection at RAL, these services are expected to be offline completely for 15 minutes to an hour during this window. Should the maintenance cause issues with these services, they may not be resolved until the next day.
EGI.eu
GRIDOPS-GOCDB
TIERNA
2025-10-29 21:00
2025-10-30 10:30
WARNING
SCHEDULED
Following the maintenance of the primary JANET internet connection at RAL, these services should be considered at risk during this window as any issues caused by the overnight maintenance may not be resolved until the following working day.
EGI.eu
GRIDOPS-APEL
TIERNA
2025-10-29 18:00
2025-10-29 21:00
OUTAGE
SCHEDULED
Due to maintenance of the primary JANET internet connection at RAL, these services are expected to be offline completely for 15 minutes to an hour during this window. Should the maintenance cause issues with these services, they may not be resolved until the next day.
EGI.eu
GRIDOPS-APEL
TIERNA
2025-10-29 21:00
2025-10-30 10:30
WARNING
SCHEDULED
Following the maintenance of the primary JANET internet connection at RAL, these services should be considered at risk during this window as any issues caused by the overnight maintenance may not be resolved until the following working day.
iris.ac.uk
IRISOPS-IAM
TIERNA
2025-10-29 18:00
2025-10-29 21:00
OUTAGE
SCHEDULED
Due to maintenance of the primary JANET internet connection at RAL, these services are expected to be offline completely for 15 minutes to an hour during this window. Should the maintenance cause issues with these services, they may not be resolved until the next day.
iris.ac.uk
IRISOPS-IAM
TIERNA
2025-10-29 21:00
2025-10-30 10:30
WARNING
SCHEDULED
Following the maintenance of the primary JANET internet connection at RAL, these services should be considered at risk during this window as any issues caused by the overnight maintenance may not be resolved until the following working day.
NGI_UK
RAL-LCG2
TIER1
2025-10-29 18:00
2025-10-29 21:00
OUTAGE
SCHEDULED
Due to maintenance of the primary JANET internet connection at RAL, these services are expected to be offline completely for 15 minutes to an hour during this window. Should the maintenance cause issues with these services, they may not be resolved until the next da
NGI_UK
RAL-LCG2
TIER1
2025-10-29 21:00
2025-10-30 10:30
WARNING
SCHEDULED
Following the maintenance of the primary JANET internet connection at RAL, these services should be considered at risk during this window as any issues caused by the overnight maintenance may not be resolved until the following working day.
ROC_LA
SAMPA
TIERNA
2025-10-25 01:30
2025-10-30 02:00
OUTAGE
UNSCHEDULED
CVMFS data exceeding the total data store
NGI_DE
GoeGrid
TIER2
2025-10-29 07:00
2025-10-29 14:18
OUTAGE
SCHEDULED
dCache update
NGI_SK
IEPSAS-Kosice
TIERNA
2025-10-25 03:00
2025-10-25 15:12
OUTAGE
UNSCHEDULED
Unexpected electrical cut
NGI_IT
INFN-COSENZA
TIERNA
2025-10-26 21:30
2025-10-28 23:00
OUTAGE
UNSCHEDULED
Chiller Down - Maintenance needed
NGI_IT
INFN-COSENZA
TIERNA
2025-10-27 21:30
2025-11-07 23:00
OUTAGE
SCHEDULED
Chiller Down - Maintenance needed
NGI_NDGF
FI_HIP_T2
TIER2
2025-10-28 11:00
2025-10-28 21:59
WARNING
SCHEDULED
T2_FI_HIP: Complete update of the kale computing nodes to Almalinux
NGI_NDGF
FI_HIP_T2
TIER2
2025-10-28 13:00
2025-11-28 23:59
WARNING
SCHEDULED
T2_FI_HIP: Complete update of the kale computing nodes to Almalinux