SWT2_CPB:
We rebuilt six R740 storage servers from EL7 to EL9 while preserving data.
After the rebuild, we verified the data and it appears to have been preserved. We have a temporary backup of the data in case of any data loss.
The server has been returned to production, and we have not observed any issues so far.
We are currently creating backups of additional R740 storage servers in preparation of migrating them from EL7 to EL9.
So far, we have not observed any issues with transfers related to these rebuilds.
We performed different tests to try and speed up the process of copying data, including removing empty directories, to try and speed up the process.
Due to news about Storm resolving issues with full chain certificates, we are gradually replacing leaf-only certificates with full chain certificates.
We reverted one of the two servers that had leaf-only certificates back to full chain certificate.
Currently three of four XRootD Proxy servers have full chain certificates.
One R740xd2 server lost network connection on 2/27/2026 from 9:00 p.m. to 12:00 a.m. (2/28/2026 3:00 a.m. to 6:00 a.m. UTC).
This may have caused some transfer issues at this time. We fixed it for now, but are still investigating this issue.
We have been experiencing failed jobs with error SIGTERM.
It contains long jobs that are hitting the three day limit set in CRIC and shorter jobs.
Logs are not accessible most of the time.
We are thinking about changing the job limits at our site to see if it helps with making logs available.
OU: