Yesterday night we got the DDN disk arrays back up. Due to a potential write back cache loss the controllers perform a forced verify on all pools to ensure data integrity. In addition a minor number of disks is rebuilt. So far, all storage is fully redundant.
DDN recommends to wait for the verify processes to finish before continuing with a file system check. The file system check will replay data that was in-flight and also report any actual errors. We have some indications that the file systems will turn out clean and we will post updates here.
The verify processes are expected to finish by lunchtime, Thursday April 12.