6027-2776 Attention: A disk being stopped reduces the degree of system metadata replication (value) or data replication (value) to lower than tolerable.
Explanation
The mmchdisk stop command
was issued, but the disk cannot be stopped because of the current
file system metadata and data replication factors.
User response
Make more disks available, delete unavailable disks,
or change the file system metadata replication factor. Also check
the current value of the unmountOnDiskFail configuration
parameter.