On 2/27/19 3:07 PM, Diego Michelotto wrote:
GPFS is 'IBM General Parallel File System', also called 'IBM Spectrum Scale', stalls when a process issues a lot of fsyncs in a short timeframe. It is better if the VM I/O is not synchronous. It is racommended to use writeback caching policy.
Using writeback may lead to a data loss if qemu is killed on destination and underlying FS has not synced the data. Since I don't have GPFS I can't confirm it's behaving safely on migration. And I wasn't fortunate finding that on the internet either.
Michal -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list
