The Mahti HPC that snowarc was submitting jobs to is decommissioned.
NGI_UK
UKI-SOUTHGRID-RALPP
TIER2
2026-09-14 08:00
2026-09-28 16:00
OUTAGE
SCHEDULED
Draining prior to decommissioning
EGI.eu
GRIDOPS-PERUN
TIERNA
2026-09-30 06:00
2026-09-30 07:00
OUTAGE
SCHEDULED
Upgrade EGI Perun OS to Debian 13
NGI_DE
RWTH-Aachen
TIER2
2026-09-28 06:00
2026-09-28 16:00
OUTAGE
SCHEDULED
dCache upgrade and general maintenance
NGI_UA
UA-BITP
TIERNA
2026-09-08 10:01
2026-09-20 10:00
OUTAGE
UNSCHEDULED
Update certificate
EGI.eu
GRIDOPS-APEL
TIERNA
2026-09-15 08:00
2026-09-15 08:30
OUTAGE
SCHEDULED
There will be a short downtime of the APEL Validation system during this window of time to apply updates.
NGI_DE
FZK-LCG2
TIER1
2026-09-11 19:00
2026-09-12 05:00
WARNING
UNSCHEDULED
Another maintenance by national network provider on LHCOPN
NGI_DE
KIT-T2
TIERNA
2026-09-11 19:00
2026-09-12 05:00
WARNING
UNSCHEDULED
Another maintenance by national network provider on LHCOPN
NGI_NDGF
FI_HIP_T2
TIER2
2026-09-14 09:00
2026-09-14 10:00
WARNING
SCHEDULED
Storage upgrade, files may be unavailable for some periods during the downtime
NGI_FRANCE
IN2P3-CC
TIER1
2026-09-14 07:00
2026-09-14 13:29
OUTAGE
SCHEDULED
HTCondor UPDATE
NGI_CH
UNIBE-LHEP
TIERNA
2026-09-12 11:35
2026-09-12 15:35
OUTAGE
UNSCHEDULED
LAN outage
NGI_DE
UNI-FREIBURG
TIER2
2026-09-14 18:00
2026-09-15 16:00
OUTAGE
SCHEDULED
yearly central UPS powercut test
NGI_CH
UNIBE-LHEP
TIERNA
2026-09-13 19:32
2026-09-13 23:32
OUTAGE
UNSCHEDULED
Further maintenance for ARC
AsiaPacific
JP-KEK-CRC-02
TIERNA
2026-09-29 00:00
2026-11-10 00:00
WARNING
SCHEDULED
Decommissioning ARC-CE (ARC6 on RHEL7) - See more GGUS #1003863
AsiaPacific
JP-KEK-CRC-02
TIERNA
2026-09-29 00:00
2026-11-10 00:00
WARNING
SCHEDULED
Decommissioning Top-BDII and Site-BDII - See more GGUS #1003864
NGI_UA
UA-BITP
TIERNA
2026-09-14 09:00
2026-09-30 00:00
OUTAGE
UNSCHEDULED
Software update
ROC_Canada
AU-Melbourne
TIERNA
2026-09-21 00:00
2026-09-22 08:00
WARNING
SCHEDULED
Data centre operators are rebooting all hypervisors underpinning the AU-Melbourne site in response to a security issue. AU-Melbourne VMs will each be shutdown at some point during the downtime window. Per-VM shutdown times have not been provided. Each VM may be offline for up to one hour.
NGI_IT
INFN-T1
TIER1
2026-09-21 07:00
2026-09-21 16:00
OUTAGE
SCHEDULED
ce01-htc migration to new virtualization infrastructure
NGI_IT
INFN-T1
TIER1
2026-09-24 07:00
2026-09-24 16:00
OUTAGE
SCHEDULED
ce03-htc migration to new virtualization infrastructure
NGI_IT
INFN-T1
TIER1
2026-09-28 07:00
2026-09-28 16:00
OUTAGE
SCHEDULED
ce04-htc migration to new virtualization infrastructure
NGI_IT
INFN-T1
TIER1
2026-10-01 07:00
2026-10-01 16:00
OUTAGE
SCHEDULED
ce05-htc migration to new virtualization infrastructure
NGI_IT
INFN-T1
TIER1
2026-10-05 07:00
2026-10-05 16:00
OUTAGE
SCHEDULED
ce06-htc migration to new virtualization infrastructure
NGI_DE
FZK-LCG2
TIER1
2026-09-23 06:00
2026-09-23 16:00
OUTAGE
SCHEDULED
HPSS Tape System Downtime for Updates
ROC_LA
CBPF
TIERNA
2026-09-16 03:00
2026-09-16 17:23
OUTAGE
SCHEDULED
system upgrade security
NGI_NDGF
FI_HIP_T2
TIER2
2026-09-14 21:00
2026-10-02 20:59
OUTAGE
UNSCHEDULED
Snowarc was submitting to the Mahti HPC which was decommisioned. Snowarc will be reconfigured and reused.
ROC_Canada
TRIUMF-LCG2
TIER1
2026-09-16 16:00
2026-09-16 22:00
OUTAGE
SCHEDULED
upgrade dCache and PostgreSQL
EGI.eu
GRIDOPS-CheckIn
TIERNA
2026-09-17 06:00
2026-09-17 06:15
OUTAGE
SCHEDULED
EGI Check-in Keycloak Update to version 26.6.3-1.2
NGI_FRANCE
GRIF
TIER2
2026-09-23 06:30
2026-09-23 14:30
OUTAGE
SCHEDULED
EOS UPDATE 5.5.1
NGI_IT
INFN-COSENZA
TIERNA
2026-09-16 10:00
2026-09-21 21:02
OUTAGE
SCHEDULED
Chiller Purchase
NGI_IT
INFN-COSENZA
TIERNA
2026-09-15 10:00
2026-09-21 21:02
OUTAGE
UNSCHEDULED
Chiller Purchase
AsiaPacific
TW-FTT
TIER2
2026-09-19 10:00
2026-09-22 12:43
OUTAGE
SCHEDULED
High-voltage switchgear maintenance
NGI_DE
UNI-FREIBURG
TIER2
2026-09-15 16:00
2026-09-16 06:00
OUTAGE
UNSCHEDULED
HW swapped
EGI.eu
EGI-NOTEBOOKS
TIERNA
2026-09-17 09:00
2026-09-17 10:00
WARNING
UNSCHEDULED
EGI Notebooks upgrade
NGI_NDGF
FI_HIP_T2
TIER2
2026-09-16 11:00
2026-09-18 11:38
OUTAGE
UNSCHEDULED
Investigating and fixing job submission failing after SLURM/ARC update.
ROC_Canada
TRIUMF-LCG2
TIER1
2026-09-16 22:00
2026-09-16 22:18
OUTAGE
UNSCHEDULED
Need more time for the maintenance on storage
AsiaPacific
TOKYO-LCG2
TIER2
2026-09-26 00:00
2026-09-28 07:46
OUTAGE
SCHEDULED
Annual power outage for the maintenance of building power equipment
NGI_NDGF
NDGF-T1
TIER1
2026-09-28 05:30
2026-10-02 15:00
OUTAGE
SCHEDULED
Upgrades (firmware, OS, ARC, SLURM)
NGI_DE
DESY-HH
TIER2
2026-09-18 09:00
2026-09-18 16:00
WARNING
UNSCHEDULED
hw maintenance of an ATLAS storage pool - files on this machine will not be available, files on other storage servers are not affected
NGI_DE
DESY-HH
TIER2
2026-09-18 10:00
2026-09-18 16:00
WARNING
UNSCHEDULED
hw maintenance of an ATLAS storage pool - files on this machine will not be available, files on other storage servers are not affected
NGI_UA
Kharkov-KIPT-LCG2
TIERNA
2026-09-19 08:00
2026-09-19 14:15
OUTAGE
UNSCHEDULED
Network maintenance
NGI_UA
Kharkov-KIPT-LCG2
TIERNA
2026-09-20 08:00
2026-09-20 08:01
OUTAGE
SCHEDULED
Network maintenance
NGI_UA
Kharkov-KIPT-LCG2
TIERNA
2026-09-22 06:00
2026-09-22 16:35
OUTAGE
SCHEDULED
power cut
NGI_IT
INFN-PISA
TIER2
2026-09-20 18:00
2026-09-22 08:00
OUTAGE
UNSCHEDULED
HW problem of storage infratsructure
NGI_IT
INFN-PISA
TIER2
2026-09-22 10:00
2026-09-25 23:00
OUTAGE
SCHEDULED
HW problem of storage infratsructure
NGI_DE
SCAI
TIERNA
2026-09-21 12:10
2026-10-31 00:00
WARNING
UNSCHEDULED
Ongoing major infrastructure updates. Systems are temporarily offline. Thank you for your patience.
NGI_RO
RO-14-ITIM
TIER2
2026-09-21 11:42
2026-09-25 05:48
OUTAGE
UNSCHEDULED
squid is down, Harddisk is broken, we need to change and reinstall the whole system
NGI_UK
UKI-SOUTHGRID-RALPP
TIER2
2026-09-21 13:00
2026-09-22 16:00
WARNING
UNSCHEDULED
Hardward failure on one disk server, some data is not accessible
Russia
JINR-LCG2
TIER2
2026-09-23 06:00
2026-09-24 06:20
OUTAGE
SCHEDULED
dCache upgrade to 11.2
AsiaPacific
JP-KEK-CRC-02
TIERNA
2026-09-23 23:00
2026-09-23 23:54
WARNING
SCHEDULED
The service will be intermittently unavailable during the upgrade to ARC 7.2.0 and configuration changes to stabilise token authentication and correct accounting records.
ROC_Canada
AU-Melbourne
TIERNA
2026-09-22 08:00
2026-09-23 08:00
WARNING
UNSCHEDULED
At 07:18 UT (around 15 minutes ago) an email was sent to indicate that some issues have delayed the hypervisor reboots by our hosting data centre which were covered by downtime 38257. As a result, the hypervisor reboots will now apparently extend over an additional 24 hours. This new downtime documents this extension. Unfortunately the notification from the data centre was only sent 45 minutes before the expected end of the original downtime (around 15 minutes ago), which means it was impossible to provide 24 hours notice of this. In the circumstances, this unscheduled downtime declaration is the best we can do. As for downtime 38257, each VM could be down for up to 1 hour, with no indication given as to when each VM will be shut down and rebooted.
NGI_CH
CSCS-LCG2
TIER2
2026-09-25 07:00
2026-09-25 07:45
OUTAGE
SCHEDULED
planned maintenance
NGI_UK
UKI-SOUTHGRID-RALPP
TIER2
2026-09-22 16:30
2026-09-25 16:00
WARNING
UNSCHEDULED
Ongoing hardware failure on one disk server, some data is not accessible
NGI_FRANCE
GRIF
TIER2
2026-10-05 04:00
2026-10-05 12:00
WARNING
SCHEDULED
Some files will be temporarily unavailable due to electrical maintenance at GRIF-LPNHE
NGI_FRANCE
GRIF
TIER2
2026-10-05 04:00
2026-10-05 16:00
OUTAGE
SCHEDULED
Electrical maintenance at GRIF-LPNHE
NGI_DE
LRZ-LMU
TIER2
2026-10-07 13:00
2026-10-08 20:20
OUTAGE
SCHEDULED
dCache core server migration to a new server
NGI_DE
FZK-LCG2
TIER1
2026-09-23 16:00
2026-09-23 18:00
OUTAGE
UNSCHEDULED
Downtime extension for #38263
NGI_DE
FZK-LCG2
TIER1
2026-09-23 18:00
2026-09-23 19:23
OUTAGE
UNSCHEDULED
Another downtime extension for #38263
NGI_DE
FZK-LCG2
TIER1
2026-09-25 08:00
2026-09-29 08:19
WARNING
SCHEDULED
Compute Farm reboot due to security updates
ROC_Canada
CA-WATERLOO-T2
TIERNA
2026-09-24 17:30
2026-09-24 20:00
OUTAGE
UNSCHEDULED
dCache pool volume down
CERN
CERN-PROD
TIER0
2026-10-08 07:45
2026-10-08 08:45
OUTAGE
SCHEDULED
CTA Service unavailable during database intervention (see https://cern.service-now.com/service-portal?id=outage&n=OTG0163362)
Russia
JINR-T1
TIERNA
2026-09-28 06:00
2026-09-29 06:03
OUTAGE
SCHEDULED
MSS dCache upgrade to 11.2
Russia
JINR-T1
TIERNA
2026-09-28 06:00
2026-09-29 06:02
OUTAGE
UNSCHEDULED
MSS dCache upgrade to 11.2
iris.ac.uk
IRISOPS-IAM
TIERNA
2026-10-13 07:30
2026-10-13 08:30
WARNING
SCHEDULED
IRIS IAM Upgrade to v1.14.4 - 13th Oct 2026 (Tue) 0830AM - 0930AM (Europe/London)
NGI_IT
INFN-LNL-2
TIER2
2026-10-06 06:00
2026-10-06 17:00
OUTAGE
SCHEDULED
Storage downtime for dCache upgrade
NGI_RO
NIHAM
TIER2
2026-09-30 04:00
2026-10-08 10:00
OUTAGE
SCHEDULED
Work at electrical instalation.
Russia
JINR-T1
TIERNA
2026-09-30 06:30
2026-10-01 16:00
OUTAGE
SCHEDULED
dCache upgrade to 11.2
AsiaPacific
JP-KEK-CRC-02
TIERNA
2026-10-08 00:00
2026-10-08 00:30
OUTAGE
SCHEDULED
IAM upgrade work (from v1.13.5 to v1.14.4)
NGI_DE
wuppertalprod
TIER2
2026-10-02 08:00
2026-10-02 09:07
OUTAGE
SCHEDULED
critical updates on the BIOS of the storage servers
NGI_UK
UKI-SOUTHGRID-RALPP
TIER2
2026-10-05 09:00
2026-10-16 17:00
WARNING
SCHEDULED
Draining prior to decommissioning
NGI_NDGF
NDGF-T1
TIER1
2026-09-30 08:00
2026-09-30 09:40
OUTAGE
UNSCHEDULED
NDGF dCache is down
Russia
JINR-T1
TIERNA
2026-09-30 06:30
2026-10-01 16:00
OUTAGE
UNSCHEDULED
webdav and xrootd door downtime
NGI_UK
UKI-LT2-Brunel
TIER2
2026-09-30 13:00
2026-09-30 18:00
WARNING
UNSCHEDULED
Active campus firewall has failed over to standby. Networks investigating
NGI_FRANCE
IN2P3-IRES
TIER2
2026-10-07 06:00
2026-10-07 12:00
OUTAGE
SCHEDULED
Security upgrade on CE.
ROC_LA
SAMPA
TIERNA
2026-10-01 11:00
2026-10-02 13:52
OUTAGE
UNSCHEDULED
Storage system disks are full on EOS disk space status
EGI.eu
GRIDOPS-ACCPORTAL
TIERNA
2026-10-06 09:00
2026-10-06 09:30
OUTAGE
SCHEDULED
These systems will be unavailable during this window.
ROC_LA
CBPF
TIERNA
2026-10-05 03:00
2026-10-05 13:22
OUTAGE
SCHEDULED
system upgrade security
ROC_LA
CBPF
TIERNA
2026-11-03 03:00
2026-11-07 02:00
OUTAGE
SCHEDULED
Eletric system maintenance
EGI.eu
EGI-NOTEBOOKS
TIERNA
2026-10-05 09:00
2026-10-05 09:30
WARNING
SCHEDULED
Notebooks service update
NGI_PL
NCBJ-CIS
TIERNA
2026-10-08 07:00
2026-10-08 11:00
OUTAGE
SCHEDULED
dCache update
NGI_UK
UKI-LT2-Brunel
TIER2
2026-10-05 11:25
2026-10-05 12:53
OUTAGE
UNSCHEDULED
Active campus firewall has failed over to standby (again). Networks investigating, grid needs to be manually failed over.
NGI_IBERGRID
CIEMAT-LCG2
TIER2
2026-10-08 08:25
2026-10-08 10:45
OUTAGE
SCHEDULED
HTCondor update
NGI_DE
FZK-LCG2
TIER1
2026-10-06 07:00
2026-10-09 16:00
WARNING
UNSCHEDULED
Migration to new network will be performed for our dCache setup. No persisting service outages expected.
NGI_DE
KIT-T2
TIERNA
2026-10-06 07:00
2026-10-09 16:00
WARNING
UNSCHEDULED
Migration to new network will be performed for our dCache setup. No persisting service outages expected.
NGI_DE
RWTH-Aachen
TIER2
2026-10-07 15:30
2026-10-07 16:08
WARNING
SCHEDULED
possible network interruption
NGI_UA
UA_BITP_ARC
TIERNA
2026-10-06 09:00
2026-10-17 00:00
OUTAGE
UNSCHEDULED
Update certificate
NGI_NDGF
FI_HIP_T2
TIER2
2026-10-07 09:00
2026-10-09 14:47
OUTAGE
SCHEDULED
Snowarc will be reconfigured and reused.
NGI_DE
FZK-LCG2
TIER1
2026-10-07 21:00
2026-10-08 03:00
WARNING
SCHEDULED
DFN Maintenance of LHCOPN link
NGI_DE
KIT-T2
TIERNA
2026-10-07 21:00
2026-10-08 03:00
WARNING
SCHEDULED
DFN Maintenance of LHCOPN link
NGI_NDGF
FI_HIP_T2
TIER2
2026-10-07 17:30
2026-10-30 20:59
OUTAGE
SCHEDULED
Snowarc will be reconfigured and reused.
NGI_UA
UA-PIMEE
TIERNA
2026-10-07 00:00
2028-01-01 00:00
OUTAGE
UNSCHEDULED
service down because of the martial law in Ukraine
NGI_UA
UA-KNU
TIERNA
2026-10-07 00:00
2028-01-01 00:00
OUTAGE
UNSCHEDULED
service down because of the martial law in Ukraine
NGI_UA
UA-NSCMBR
TIERNA
2026-10-07 00:00
2028-01-01 00:00
OUTAGE
UNSCHEDULED
service down because of the martial law in Ukraine
NGI_UA
UA-IFBG
TIERNA
2026-10-07 00:00
2028-01-01 00:00
OUTAGE
UNSCHEDULED
service down because of the martial law in Ukraine
NGI_UA
NGI_UA_SERVICES
TIERNA
2026-10-07 00:00
2028-01-01 00:00
OUTAGE
UNSCHEDULED
service down because of the martial law in Ukraine
NGI_UA
UA-ISMA
TIERNA
2026-10-07 00:00
2028-01-01 00:00
OUTAGE
UNSCHEDULED
service down because of the martial law in Ukraine
ROC_Canada
CA-VICTORIA-WESTGRID-T2
TIER2
2026-10-08 13:30
2026-10-08 17:30
WARNING
UNSCHEDULED
brief network interruptions during switch maintenance
NGI_IT
Hephy-Vienna
TIER2
2026-10-27 07:00
2026-10-28 18:00
OUTAGE
SCHEDULED
Cooling maintenance
NGI_IT
INFN-NAPOLI-ATLAS
TIER2
2026-10-08 10:00
2026-10-09 17:38
OUTAGE
UNSCHEDULED
Cooling down due to electrical panel outage
NGI_IT
RECAS-NAPOLI
TIERNA
2026-10-08 13:00
2026-10-09 16:00
OUTAGE
UNSCHEDULED
Cooling System Down
NGI_UK
UKI-LT2-Brunel
TIER2
2026-10-08 11:50
2026-10-08 17:00
OUTAGE
UNSCHEDULED
Active campus firewall has failed over to standby
NGI_UK
UKI-LT2-Brunel
TIER2
2026-10-08 17:00
2026-10-08 18:40
OUTAGE
UNSCHEDULED
Emergency PaloAlto firewall update to hopefully remediate recent outages
NGI_SK
IISAS-FedCloud
TIERNA
2026-10-08 22:00
2026-10-09 10:00
OUTAGE
UNSCHEDULED
Unscheduled power outage. We are recovering cloud infrastructure.
NGI_SK
IISAS-Bratislava
TIERNA
2026-10-08 22:00
2026-10-09 10:00
OUTAGE
UNSCHEDULED
Unscheduled power outage.
AsiaPacific
INDIACMS-TIFR
TIER2
2026-10-09 08:50
2026-11-30 18:25
OUTAGE
UNSCHEDULED
storage upgrade
NGI_NDGF
NDGF-T1
TIER1
2026-10-12 08:00
2026-10-12 12:00
WARNING
SCHEDULED
dCache pool restarts. Some Atlas and Alice data unavailable for short periods of time. Writes should not be affected.
NGI_DE
FZK-LCG2
TIER1
2026-10-12 07:00
2026-10-16 18:00
WARNING
SCHEDULED
Migration to new network will be performed for our dCache setup. No persisting service outages expected (week 2).
NGI_DE
KIT-T2
TIERNA
2026-10-12 07:00
2026-10-16 18:00
WARNING
SCHEDULED
Migration to new network will be performed for our dCache setup. No persisting service outages expected (week 2).
NGI_CHINA
LZU-T2
TIERNA
2026-10-10 01:00
2026-10-10 06:14
OUTAGE
UNSCHEDULED
Enable HT on all nodes
NGI_IT
INFN-COSENZA
TIERNA
2026-10-09 11:15
2026-10-29 22:00
OUTAGE
UNSCHEDULED
Chiller down
NGI_IT
INFN-COSENZA
TIERNA
2026-10-10 11:15
2026-10-29 22:00
OUTAGE
SCHEDULED
Chiller down
EGI.eu
GRIDOPS-GGUS
TIERNA
2026-10-10 11:15
2026-10-10 11:45
OUTAGE
UNSCHEDULED
Security update
EGI.eu
GRIDOPS-CheckIn
TIERNA
2026-10-14 10:00
2026-10-14 10:30
WARNING
SCHEDULED
UPDATE of the EGI Federation Registry: Registration of new services or reconfiguration of services already connected to Check-in will not be available during the maintenance. User login to services should not be affected
NGI_UK
UKI-LT2-Brunel
TIER2
2026-10-15 19:00
2026-10-15 20:00
WARNING
SCHEDULED
Redundant outbound link into secondary DC test
NGI_NL
SARA-MATRIX
TIER1
2026-10-13 08:00
2026-10-13 08:15
WARNING
UNSCHEDULED
WebDAV doors at webdav.grid.surfsara.nl:443 will need to be restarted to increase the rate limits. This needs to be done to prevent 429 errors. During a few minutes, some transfers may fail.