If any nodes except the node used to run BACKUP
are booted during the backup operations described in this appendix,
your cluster will become partitioned, where nodes in the existing
cluster divide into two or more independent clusters. This condition
can cause data file corruption.
In addition, these backup environments do not
restrict your use of DCL commands to the BACKUP command only, which
further increases your risk of accidentally destroying or corrupting
data on a disk. Therefore, to avoid jeopardizing the integrity of
your data in any way, HP recommends that you shut down the entire
OpenVMS Cluster system before you back up your system disk.
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