IPv4 subnet migration from 144.16.111.0/24 to 158.144.194.0/23
NGI_PL
CYFRONET-LCG2
TIER2
2026-05-07 07:00
2026-05-07 17:00
OUTAGE
SCHEDULED
maintenance work on EOS storage system
NGI_UK
UKI-NORTHGRID-MAN-HEP
TIER2
2026-04-29 09:00
2026-04-29 11:00
OUTAGE
SCHEDULED
upgrade to ARC7
NGI_UK
UKI-NORTHGRID-MAN-HEP
TIER2
2026-04-30 09:00
2026-04-30 11:00
OUTAGE
SCHEDULED
upgrade to ARC7
NGI_NDGF
FI_HIP_T2
TIER2
2026-04-28 12:00
2026-05-29 23:59
OUTAGE
SCHEDULED
Complete update of the kale computing nodes to Almalinux
NGI_DE
MPPMU
TIER2
2026-04-27 10:00
2026-04-30 16:00
OUTAGE
UNSCHEDULED
bdii FQDN change
NGI_IL
WEIZMANN-LCG2
TIER2
2026-04-29 07:00
2026-04-29 16:02
OUTAGE
SCHEDULED
CE software upgrade
NGI_UK
UKI-NORTHGRID-MAN-HEP
TIER2
2026-04-28 12:00
2026-04-29 08:00
OUTAGE
UNSCHEDULED
upgrade to ARC7 - draining taking longer than expected
NGI_IL
IL-TAU-HEP
TIER2
2026-04-30 06:00
2026-04-30 12:00
OUTAGE
SCHEDULED
Moving the WN to a new cabinet
NGI_CH
CSCS-LCG2
TIER2
2026-04-28 16:00
2026-04-29 05:03
OUTAGE
UNSCHEDULED
Outage on cabinets hosting Fort Nodes
NGI_IBERGRID
IFCA-LCG2
TIER2
2026-04-29 09:00
2026-05-01 10:00
OUTAGE
UNSCHEDULED
Change Slurm Authtype
NGI_UK
UKI-NORTHGRID-MAN-HEP
TIER2
2026-04-29 11:00
2026-04-30 08:00
OUTAGE
UNSCHEDULED
upgrade to ARC7 - draining taking longer than expected
NGI_IBERGRID
ifae
TIER2
2026-05-09 04:00
2026-05-09 16:00
OUTAGE
SCHEDULED
Yearly electrical maintenance
NGI_UK
UKI-NORTHGRID-MAN-HEP
TIER2
2026-04-30 11:00
2026-05-01 08:00
OUTAGE
UNSCHEDULED
upgrade to ARC7 - draining taking longer than expected
NGI_SI
SiGNET
TIER2
2026-04-30 08:00
2026-04-30 11:33
OUTAGE
UNSCHEDULED
Security updates
NGI_CH
CSCS-LCG2
TIER2
2026-04-30 09:00
2026-04-30 10:51
OUTAGE
UNSCHEDULED
EMERGENCY manintenance
NGI_UK
UKI-NORTHGRID-MAN-HEP
TIER2
2026-04-30 09:00
2026-04-30 10:47
OUTAGE
UNSCHEDULED
CVE-2026-31431 needs urgent reboot of WNs
NGI_FRANCE
IN2P3-LPC
TIER2
2026-04-30 00:00
2026-04-30 05:00
OUTAGE
UNSCHEDULED
downtime for security kernle update
NGI_UK
UKI-LT2-QMUL
TIER2
2026-05-01 10:30
2026-05-01 11:00
OUTAGE
SCHEDULED
reboot servers
NGI_FRANCE
IN2P3-CPPM
TIER2
2026-04-30 10:00
2026-04-30 14:03
OUTAGE
UNSCHEDULED
Security stop due to CVE-2026-31431
NGI_FRANCE
IN2P3-IRES
TIER2
2026-04-30 11:50
2026-04-30 16:38
OUTAGE
UNSCHEDULED
Security
NGI_DE
RWTH-Aachen
TIER2
2026-04-30 10:00
2026-04-30 15:21
WARNING
UNSCHEDULED
Mitigation of copy.fail
NGI_IT
INFN-NAPOLI-ATLAS
TIER2
2026-05-05 07:00
2026-05-08 13:01
OUTAGE
SCHEDULED
Computing room electrical upgrade
NGI_CZ
praguelcg2
TIER2
2026-05-14 06:00
2026-05-18 10:00
OUTAGE
SCHEDULED
Power station service, Network and OS upgrades
NGI_CZ
prague_cesnet_lcg2
TIER2
2026-05-14 06:00
2026-05-18 10:00
OUTAGE
SCHEDULED
Power station service, Network and OS upgrades
NGI_UK
UKI-SCOTGRID-ECDF
TIER2
2026-04-30 09:00
2026-04-30 17:00
OUTAGE
UNSCHEDULED
I assume critical updates
NGI_CH
CSCS-LCG2
TIER2
2026-05-05 08:00
2026-05-05 12:44
OUTAGE
SCHEDULED
planned maintenance
AsiaPacific
IN-DAE-VECC-02
TIER2
2026-05-02 04:30
2026-05-04 11:30
OUTAGE
UNSCHEDULED
Downtime Kolkata T2 Due to Cooling PAC are failed
NGI_IT
INFN-FRASCATI
TIER2
2026-05-06 07:30
2026-05-06 13:00
OUTAGE
SCHEDULED
storage upgrade
NGI_UK
UKI-LT2-Brunel
TIER2
2026-05-06 09:00
2026-05-06 15:00
OUTAGE
SCHEDULED
Kernel patches
NGI_UK
UKI-NORTHGRID-LANCS-HEP
TIER2
2026-05-13 08:00
2026-05-13 14:23
OUTAGE
SCHEDULED
Cluster Update and Maintenance
NGI_IT
INFN-ROMA1
TIER2
2026-05-11 06:00
2026-05-12 07:27
OUTAGE
SCHEDULED
dcache upgrade
NGI_IBERGRID
CIEMAT-LCG2
TIER2
2026-05-12 08:00
2026-05-13 18:00
OUTAGE
SCHEDULED
Hardware intervention in our main router
AsiaPacific
INDIACMS-TIFR
TIER2
2026-05-11 18:30
2026-06-12 18:29
OUTAGE
SCHEDULED
extension of IPv4 subnet migration and testing + Htcondor upgradation + network firmware upgrade
NGI_CHINA
BEIJING-LCG2
TIER2
2026-05-14 00:00
2026-05-14 04:39
OUTAGE
SCHEDULED
Update WN to latest version
NGI_UK
UKI-LT2-Brunel
TIER2
2026-05-13 09:00
2026-05-13 15:00
OUTAGE
SCHEDULED
Node patching
NGI_CH
CSCS-LCG2
TIER2
2026-05-12 10:05
2026-05-12 14:10
OUTAGE
UNSCHEDULED
emergency maintenance on alps cabinets
NGI_IBERGRID
NCG-INGRID-PT
TIER2
2026-05-18 00:01
2026-05-20 17:00
OUTAGE
SCHEDULED
upgrade of slurm and CE to ARC 7.1.
NGI_DE
MPPMU
TIER2
2026-05-14 08:00
2026-05-22 07:57
OUTAGE
SCHEDULED
Major maintenance
NGI_UK
UKI-LT2-RHUL
TIER2
2026-05-13 09:00
2026-05-13 22:00
OUTAGE
UNSCHEDULED
Site network issue
NGI_FRANCE
GRIF
TIER2
2026-05-13 15:30
2026-05-14 08:10
OUTAGE
UNSCHEDULED
network outage at GRIF/IJCLAB
NGI_IBERGRID
UAM-LCG2
TIER2
2026-05-20 17:00
2026-05-21 05:00
WARNING
SCHEDULED
Network backbone work window
NGI_FRANCE
GRIF
TIER2
2026-05-13 10:00
2026-05-13 13:29
OUTAGE
UNSCHEDULED
initial network outage
NGI_CHINA
BEIJING-LCG2
TIER2
2026-05-19 01:40
2026-05-19 07:47
OUTAGE
SCHEDULED
Update WN to latest version
NGI_UK
UKI-LT2-Brunel
TIER2
2026-05-20 08:00
2026-05-20 16:00
OUTAGE
SCHEDULED
Patching
NGI_NDGF
FI_HIP_T2
TIER2
2026-05-27 04:00
2026-05-27 10:25
OUTAGE
SCHEDULED
Moving storage to another room. Storage unavailable during the move.
NGI_TR
TR-03-METU
TIER2
2026-06-04 10:00
2026-06-04 12:00
OUTAGE
SCHEDULED
ARC6 to ARC7 Upgrade
NGI_TR
TR-10-ULAKBIM
TIER2
2026-06-05 10:00
2026-06-05 12:00
OUTAGE
SCHEDULED
ARC6 to ARC7 Upgrade
AsiaPacific
TW-FTT
TIER2
2026-05-17 15:00
2026-05-19 03:01
OUTAGE
UNSCHEDULED
Unscheduled downtime due to network provider circuit interruption.
NGI_IBERGRID
NCG-INGRID-PT
TIER2
2026-05-20 16:00
2026-05-21 17:00
OUTAGE
UNSCHEDULED
slurm migration
AsiaPacific
TOKYO-LCG2
TIER2
2026-05-26 00:00
2026-05-26 05:23
OUTAGE
SCHEDULED
Middleware and kernel update
NGI_DE
UNI-FREIBURG
TIER2
2026-05-21 15:30
2026-05-22 06:02
OUTAGE
UNSCHEDULED
severe power outage - also some UPS installations failed
NGI_DE
UNI-FREIBURG
TIER2
2026-05-22 16:40
2026-05-22 16:43
OUTAGE
SCHEDULED
severe power outage prolonged - no repair over holidays
NGI_FRANCE
IN2P3-LPC
TIER2
2026-05-26 06:00
2026-05-26 06:28
OUTAGE
SCHEDULED
downtime for security kernle update
NGI_UK
UKI-LT2-Brunel
TIER2
2026-05-25 20:45
2026-05-29 23:55
OUTAGE
UNSCHEDULED
Likely AC Failure in Datacentre. Currently under investigation
NGI_DE
DESY-HH
TIER2
2026-06-17 06:00
2026-06-17 18:00
OUTAGE
SCHEDULED
ATLAS, CMS SEs: bumping versions and service hardenings
NGI_NDGF
FI_HIP_T2
TIER2
2026-05-28 09:00
2026-08-28 20:59
OUTAGE
SCHEDULED
Complete update of the kale computing nodes to Almalinux
NGI_DE
DESY-HH
TIER2
2026-06-17 06:00
2026-06-17 18:00
WARNING
SCHEDULED
maintenance changes on the CE grid cluster - should be transparent (in parallel to SE bump https://goc.egi.eu/portal/index.php?Page_Type=Downtime&id=37881)
NGI_UK
UKI-LT2-Brunel
TIER2
2026-05-29 23:55
2026-06-05 14:00
OUTAGE
SCHEDULED
Portable Air Conditioning unit installation + Bringing ceph back up
NGI_DE
DESY-ZN
TIER2
2026-06-23 04:00
2026-06-23 08:00
OUTAGE
SCHEDULED
Major routing changes will lead to temporary network outages
NGI_DE
DESY-ZN
TIER2
2026-06-23 08:00
2026-06-23 12:00
WARNING
SCHEDULED
Aftermath of major network routing changes could still lead to some connectivity problems
Russia
JINR-LCG2
TIER2
2026-05-30 05:00
2026-05-30 15:00
OUTAGE
SCHEDULED
Reconfiguration of power lines in the cluster hall
NGI_DE
DESY-HH
TIER2
2026-05-28 21:00
2026-05-29 08:00
WARNING
UNSCHEDULED
networking is currently flaky - under investigating
NGI_DE
DESY-ZN
TIER2
2026-05-28 21:00
2026-05-29 08:00
WARNING
UNSCHEDULED
networking might be flaky - under investigating
NGI_DE
DESY-HH
TIER2
2026-06-23 04:00
2026-06-23 08:00
WARNING
SCHEDULED
adjacent network routing maintenance, should be transparent
NGI_CH
CSCS-LCG2
TIER2
2026-05-29 07:00
2026-05-29 12:14
OUTAGE
UNSCHEDULED
maintetnance to check the whole system
NGI_DE
DESY-HH
TIER2
2026-05-29 10:00
2026-06-02 10:00
WARNING
UNSCHEDULED
testing security hardenings on a subset of CE workers (batch1001...batch1010) - should be transparent, feeedback/ticket would be appreciated if affecting production
NGI_IT
INFN-MILANO-ATLASC
TIER2
2026-05-28 22:00
2026-06-03 19:00
OUTAGE
UNSCHEDULED
A dCache disk node requires maintenance (replacing HBA card)