Describe the issue
The disk on s390x builders (KVM, 18-23) is too small for building cross-gcc. I got a successful build on the zVM builder at one time, but 3 or 4 builds failed on low disk on the KVM ones. The disk sizes differ by ~7GB (KVM = ~96GB, zVM = ~103GB). Another issue might be that the KVM builders have 30 - 60GB disk space already used when the big build starts, while I see only 12 - 17GB used on zVM ones. I wonder if the koji builder daemon garbage collects the failed builds in time or there are some stale data ...

When do you need this? (YYYY/MM/DD)
ASAP

When is this no longer needed or useful? (YYYY/MM/DD)
N/A

If we cannot complete your request, what is the impact?
bad user experience, can't build a package