Network change. dCache will be moved to its own network. Delayed from week 37 to 39
NGI_FRANCE
IN2P3-CPPM
TIER2
2025-08-08 16:00
2025-09-15 16:00
OUTAGE
SCHEDULED
update and rebuilding site
ROC_Canada
CA-WATERLOO-T2
TIERNA
2025-08-15 15:00
2025-10-01 03:00
OUTAGE
UNSCHEDULED
Site is being reinstalled from scratch on new resources
NGI_UK
UKI-SCOTGRID-ECDF
TIER2
2025-08-29 08:00
2025-09-28 11:00
OUTAGE
SCHEDULED
ECDF site outage for power work at ACF, networking changes at ACF and hosting changes at JCMB
AsiaPacific
KR-KNU-T3
TIERNA
2025-09-13 11:00
2025-09-14 11:00
OUTAGE
SCHEDULED
Campus wide power mainternance
EGI.eu
EGI-DDNS
TIERNA
2025-09-09 08:00
2025-09-10 10:00
OUTAGE
SCHEDULED
Power outage at IISAS. Hostname registration and IP update will not work. IP resolutions of registered hostnames will work normally
EGI.eu
EGI-SECRETS-STORE
TIERNA
2025-09-09 08:00
2025-09-10 08:00
WARNING
SCHEDULED
Scheduled power outage at IISAS. Service should work normally due HA setup, however, some glitches mat happen
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_UK
RAL-LCG2
TIER1
2025-09-10 08:00
2025-09-10 15:00
WARNING
SCHEDULED
Antares Tape (DB) patching
ROC_LA
CBPF
TIERNA
2025-09-12 12:45
2025-09-12 16:30
OUTAGE
SCHEDULED
Network maintenance
EGI.eu
GRIDOPS-CheckIn
TIERNA
2025-09-10 06:00
2025-09-10 06:15
OUTAGE
SCHEDULED
EGI Check-in Keycloak Update to version 22.0.13-22
NGI_IT
INFN-T1
TIER1
2025-09-10 07:00
2025-09-10 15:00
WARNING
SCHEDULED
NREN network interventing to solve ipv6 routing issues
NGI_FRANCE
IN2P3-CPPM
TIER2
2025-09-15 16:00
2025-10-08 07:33
OUTAGE
SCHEDULED
update and rebuilding site
NGI_DE
FZK-LCG2
TIER1
2025-09-10 09:00
2025-09-15 10:00
WARNING
SCHEDULED
Compute Farm reboot due to security updates
EGI.eu
EGI-ARTEFACT-REGISTRY
TIERNA
2025-10-19 00:00
2025-12-31 00:00
OUTAGE
SCHEDULED
Deprecation of legacy EGI AppDB Service
NGI_IBERGRID
pic
TIER1
2025-09-16 08:00
2025-09-16 13:24
OUTAGE
SCHEDULED
Upgrade dCache to new Golden release 10.2
NGI_IBERGRID
ifae
TIER2
2025-09-16 08:00
2025-09-16 13:24
OUTAGE
SCHEDULED
Upgrade dCache to new Golden release 10.2
NGI_NL
SARA-MATRIX
TIER1
2025-09-11 07:00
2025-09-12 17:00
OUTAGE
SCHEDULED
Upgrade perfsonar server and version
NGI_FRANCE
IN2P3-CC
TIER1
2025-09-09 18:00
2025-09-10 18:00
WARNING
UNSCHEDULED
On-going partial Incident on our robotics
NGI_FRANCE
IN2P3-CC
TIER1
2025-09-10 18:00
2025-09-11 08:00
WARNING
UNSCHEDULED
On-going partial Incident on our robotics
NGI_FRANCE
IN2P3-CC
TIER1
2025-09-11 08:00
2025-09-12 07:58
WARNING
SCHEDULED
On-going partial Incident on our robotics
NGI_UK
UKI-LT2-QMUL
TIER2
2025-09-10 18:00
2025-09-15 12:00
OUTAGE
UNSCHEDULED
Work needed to be done on the Power
AsiaPacific
TOKYO-LCG2
TIER2
2025-09-26 00:00
2025-09-29 10:44
OUTAGE
SCHEDULED
Annual power outage for the maintenance of building power equipment
EGI.eu
GRIDOPS-APEL
TIERNA
2025-09-12 10:00
2025-09-12 11:00
OUTAGE
SCHEDULED
There will be a brief downtime of the monitoring system during this period to apply updates
NGI_NL
NIKHEF-ELPROD
TIER1
2025-09-17 08:00
2025-09-17 12:00
OUTAGE
SCHEDULED
upgrade of dcache servers
NGI_DE
FZK-LCG2
TIER1
2025-09-12 11:00
2025-09-12 11:14
OUTAGE
UNSCHEDULED
Short downtime of storage endpoints for critical security updates [EGI-SVG-2025-16]
NGI_CHINA
BEIJING-LCG2
TIER2
2025-09-16 01:00
2025-09-16 05:48
OUTAGE
SCHEDULED
Update kernel
NGI_CHINA
BEIJING-T1
TIERNA
2025-09-16 01:00
2025-09-16 05:48
OUTAGE
SCHEDULED
Update kernel
NGI_CHINA
LZU-T2
TIERNA
2025-09-16 01:00
2025-09-16 05:48
OUTAGE
SCHEDULED
Update kernel
AsiaPacific
JP-KEK-CRC-02
TIERNA
2025-09-16 00:00
2025-09-16 00:43
WARNING
SCHEDULED
Multiple brief service outages are expected during the host certificate replacement. Until clients PEM files are updated in the X509_VOMS_DIR, authentication may fail.
NGI_FRANCE
IN2P3-CC
TIER1
2025-09-12 07:58
2025-09-13 08:00
WARNING
UNSCHEDULED
Maintenance for security patch.
NGI_FRANCE
IN2P3-CC
TIER1
2025-09-13 08:07
2025-09-15 08:00
OUTAGE
SCHEDULED
Maintenance for security patch.
NGI_FRANCE
IN2P3-CC
TIER1
2025-09-12 05:58
2025-09-13 06:07
OUTAGE
UNSCHEDULED
Maintenance for security patch.
NGI_FRANCE
IN2P3-LAPP
TIER2
2025-09-17 06:00
2025-09-17 16:54
OUTAGE
SCHEDULED
HTCondor upgrade and security patch
NGI_NDGF
NDGF-T1
TIER1
2025-09-15 17:00
2025-09-15 19:00
OUTAGE
SCHEDULED
Nordunet will upgrade a router. All NDGF central services will be missing for a while during the restarts.
NGI_FRANCE
IN2P3-CC
TIER1
2025-09-15 08:00
2025-09-15 16:00
OUTAGE
UNSCHEDULED
Maintenance for security patch.
NGI_UK
UKI-LT2-QMUL
TIER2
2025-09-15 12:00
2025-09-17 12:00
OUTAGE
UNSCHEDULED
continuing power works
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_CHINA
BEIJING-LCG2
TIER2
2025-09-18 01:00
2025-09-18 06:25
OUTAGE
SCHEDULED
Update WN to latest version
NGI_CHINA
BEIJING-T1
TIERNA
2025-09-18 01:00
2025-09-18 03:09
OUTAGE
SCHEDULED
Update WN to latest version
NGI_CHINA
LZU-T2
TIERNA
2025-09-18 01:00
2025-09-18 03:09
OUTAGE
SCHEDULED
Update WN to latest version
NGI_FRANCE
IN2P3-CC
TIER1
2025-09-23 08:00
2025-09-23 14:51
OUTAGE
SCHEDULED
Upgrade Dcache
NGI_FRANCE
IN2P3-LPC
TIER2
2025-09-18 07:00
2025-09-18 12:00
OUTAGE
SCHEDULED
Update Kernel in production
AsiaPacific
TW_TIDC_T3
TIERNA
2025-09-20 23:00
2025-09-23 23:00
OUTAGE
SCHEDULED
Data center power maintenance
AsiaPacific
TW-FTT
TIER2
2025-09-20 23:00
2025-09-23 23:00
OUTAGE
SCHEDULED
Data center power maintenance
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
INFN-LNL-2
TIER2
2025-09-24 06:00
2025-09-25 07:08
OUTAGE
SCHEDULED
Storage downtime for dCache upgrade
NGI_FRANCE
IN2P3-CC
TIER1
2025-09-23 07:00
2025-09-23 10:00
WARNING
SCHEDULED
Quarterly scheduled site maintenance - Storage MSS
NGI_DE
DESY-HH
TIER2
2025-09-17 12:00
2025-09-19 14:51
OUTAGE
UNSCHEDULED
tape recall affected for ATLAS
NGI_NDGF
NDGF-T1
TIER1
2025-09-18 10:30
2025-09-19 10:35
WARNING
UNSCHEDULED
Power issues at UiO. Phase loss caused dead PSUs and maybe PDUs. Tape at UiO unavailable until electricians have investigated.
NGI_NDGF
NDGF-T1
TIER1
2025-09-19 08:35
2025-09-19 20:51
WARNING
SCHEDULED
Power issues at UiO. Phase loss caused dead PSUs and maybe PDUs. Tape at UiO unavailable until electricians have investigated.
ROC_LA
SAMPA
TIERNA
2025-09-23 09:00
2025-09-23 14:00
OUTAGE
SCHEDULED
SAMPA kernel upgrade system
NGI_DE
UNI-BONN
TIERNA
2025-09-24 04:00
2025-09-24 08:00
OUTAGE
SCHEDULED
Maintenance of Campus Backbone network
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_UK
UKI-NORTHGRID-LANCS-HEP
TIER2
2025-09-25 07:00
2025-09-25 15:00
OUTAGE
SCHEDULED
Cluster update and upgrade of multiple services
AsiaPacific
JP-KEK-CRC-02
TIERNA
2025-09-22 04:00
2025-09-24 07:58
WARNING
SCHEDULED
Total calculation power will be degraded due to software maintenance for WN.
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_NDGF
NDGF-T1
TIER1
2025-09-25 12:00
2025-09-25 13:32
OUTAGE
SCHEDULED
Upgrade ARC to ARC 7.1.0
EGI.eu
EGI-ARTEFACT-REGISTRY
TIERNA
2025-09-22 00:00
2025-10-17 00:00
OUTAGE
UNSCHEDULED
Deprecation of legacy EGI AppDB Service
NGI_IT
INFN-NAPOLI-ATLAS
TIER2
2025-09-29 08:00
2025-10-07 18:00
OUTAGE
SCHEDULED
Major works on cooling
NGI_SI
SiGNET
TIER2
2025-09-26 11:30
2025-09-26 18:30
OUTAGE
SCHEDULED
Construction works in datacenter.
NGI_NDGF
NDGF-T1
TIER1
2025-09-23 14:00
2025-09-26 18:30
WARNING
UNSCHEDULED
Some files are unavailable due to hardware issues and upgrades
NGI_UK
UKI-SCOTGRID-DURHAM
TIER2
2025-09-24 15:00
2025-09-25 12:00
OUTAGE
UNSCHEDULED
CE4 - Essential work
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-DURHAM
TIER2
2025-09-24 15:00
2025-09-25 12:00
OUTAGE
UNSCHEDULED
CE4 - Essential work
ROC_LA
CBPF
TIERNA
2025-09-26 16:00
2025-09-27 10:06
WARNING
SCHEDULED
Network maintenance, jobs authentication failures
NGI_UK
UKI-NORTHGRID-LANCS-HEP
TIER2
2025-09-25 17:00
2025-09-26 17:00
OUTAGE
UNSCHEDULED
Complications after update to ARC 7
NGI_UK
UKI-SCOTGRID-GLASGOW
TIER2
2025-09-29 08:00
2025-10-01 08:48
OUTAGE
SCHEDULED
Upgrading CE to ARC 7
EGI.eu
GRIDOPS-APEL
TIERNA
2025-09-29 12:00
2025-09-29 13:00
OUTAGE
SCHEDULED
There will be a brief downtime of the APEL Validation system during this period to apply kernel updates
NGI_NDGF
NDGF-T1
TIER1
2025-09-26 18:30
2025-09-29 15:00
WARNING
UNSCHEDULED
Some files are unavailable due to broken hardware
NGI_UK
UKI-NORTHGRID-LANCS-HEP
TIER2
2025-09-26 17:00
2025-09-26 17:45
OUTAGE
UNSCHEDULED
Complications after ARC/SLURM updates
NGI_UK
UKI-NORTHGRID-LANCS-HEP
TIER2
2025-09-27 17:00
2025-09-27 22:46
OUTAGE
SCHEDULED
Complications after ARC/SLURM updates
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
2025-10-18 17:00
2025-10-20 07:00
WARNING
SCHEDULED
Possibly the tape archive will not be started after the power outage
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
2025-10-28 00:00
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 15:00
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