In
most cases, it is neither necessary nor advisable to move metadata
repositories to a new location, for the following reasons:
-
Metadata server performance is
unlikely to be improved by moving repositories to a faster file system.
The metadata server uses an in-memory database, and file system updates
are performed in a background thread in SAS 9.2 and later releases.
-
Repositories are unlikely to require
a larger amount of disk space than is available on the current file
system. In SAS 9.2 and later releases, repositories are stored in
compressed data sets. Except in the very largest deployments, storage
requirements are unlikely to exceed a total of 1 gigabyte.
Note: Metadata server logs can
cause disk space to fill up if additional logging has been enabled
for troubleshooting or other purposes. To avoid this situation, be
sure to reset logging to the default level when troubleshooting has
been completed.
Because of the complexities
involved, metadata repositories should not be moved unless there is
a strong reason to do so. Implementation of high-availability failover
for the metadata server is one of the few situations in which it might
be appropriate to consider moving metadata repositories to a network-available
file system.
CAUTION:
Moving
a metadata repository is a complex task and is not necessary in most
cases. If you determine that you need to move a metadata repository
(for example, to support failover), it is strongly recommended that
you first contact SAS Technical Support for advice and assistance.