I found that task fails with the following error:
Multiple errors during NS update: example.com.(569): Destination host 'ns1.example.com' (#15), IP '220.127.116.11' : link /var/named/run-root/var/.forbtmpWVQdv0~: Read-only file system (errno 30).
I logged to the service node and found the following error in the
# dmesg | less end_request: I/O error, dev sda1, sector 20713472 Buffer I/O error on device sda1, logical block 2589184 lost page write due to I/O error on sda1 ext3_abort called. EXT3-fs error (device sda1): ext3_journal_start_sb: Detected aborted journal Remounting filesystem read-only end_request: I/O error, dev sda1, sector 21823496
File system on the device
sda1 on the service node is corrupted.
fsck utility and others to check and fix file system.
Note: The issues caused by hardware failures are out of Parallels technical support scope.