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Metadata Utilities: nsck and sync
Synchronizing Metadata with Actual Files
CLI Maintenance Guide 5-19
Synchronizing Metadata with Actual Files
The above example shows a file that was recorded in volume metadata but is missing
from its back-end filer. You can use the
sync utility to re-synchronize the metadata
with the actual contents of the filers. You can configure a CIFS volume to
automatically sync itself whenever a client encounters a metadata error (see
“Automatically Synchronizing Metadata (CIFS)” on page 9-13 of the CLI
Storage-Management Guide ), or you can run the sync operation manually as
described here. From priv-exec mode, use the
sync files
command to synchronize
metadata for files:
sync files namespace volume vol-path path path [recurse]
[rename-files]
where:
namespace (1-30 characters) is the namespace to sync. Use the
show
namespace
command for a list of configured namespaces (see “Listing All
Namespaces” on page 7-3 of the CLI Storage-Management Guide ).
vol-path (1-1024 characters) chooses a specific managed volume in the
namespace. Use forward slashes (/) in the path, even for CIFS volumes.
path (1-1024 characters) selects a virtual path in the volume (for example, ‘/’
or ‘/home/jrandom’). You can shorten the time required for the sync with this
option; use the metadata-inconsistencies report to find the best path.
You can enter the optional recurse and rename-files flags in any order:
• recurse (optional) causes the sync operation to descend into
subdirectories.
• rename-files (optional) allows the sync process to rename any
newly-discovered file that has the same name as a previously-imported
file. (This command generates a report, described below, that identifies
renamed files.)
In multi-protocol (NFS and CIFS) volumes, this also synchronizes the metadata with
the current state of filer-generated names (FGNs, such as “FILE~2.DOC”) on its
back-end filers. This is discussed in detail in a later chapter about troubleshooting
managed volumes.