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Sun QFS and Sun Storage Archive Manager 5.3 Reference Manual Sun QFS and Sun Storage Archive Manager 5.3 Information Library |
1. User Commands (Man Pages Section 1)
2. Maintenance Commands (Man Pages Section 1M)
3. Library Functions (Man Pages Section 3)
4. Library Functions (Man Pages Section 3X)
5. File Formats (Man Pages Section 4)
NAME
samdb - SAM-QFS sideband database commands
SYNOPSIS
samdb check family_set [-f] [-s] [-q]
samdb create family_set [-s schema_file]
samdb dump family_set [-a] [-s] [-f file name]
samdb drop family_set
samdb load family_set [-i] [-f file name]
samdb query family_set [-t type] [-c] [-s] [-i inum]
[-f file] [-v vsn]
DESCRIPTION
The samdb commands are used to configure and query a SAM-QFS
MySQL database. This database retains metadata information
for each file in the file system. Use of the SAM-QFS MySQL
database implies the SAM-QFS server has access to a MySQL
server. The SAM-QFS server need not host the MySQL server if
as network access to the database host system is available.
The samdb.conf(4) configuration file contains the access
parameters for the database.
Use of the SAM-QFS MySQL database is optional and is speci-
fied by the mount option sam_db. If set, the fsalogd daemon
is started at mount time. The file system sends events to
the fsalogd who writes the events to a log file. A second
daemon, sam-dbupd, reads the events from the fsalogd log
files and updates the SAM-QFS database.
The database is initially populated by the samdb load com-
mand. Input to the samdb load command is the load file
created by samfsdump.
Example 1: Generate load file from an existing dumpfile.
# samfsrestore -S -Z /tmp/samfs1/dbload -f /path/to/dump/samfs1.dump
Example 2: Generate load file while performing a samfsre-
store.
# samfsrestore -Z /tmp/samfs1dbload -f /path/to/dump/samfs1.dump
Example 3: Pipelining samfsdump to load database.
# samfsdump -S -Z - /samfs1 | samdb load samfs1
Once the SAM-QFS MySQL database is populated, the perfor-
mance of samfsdump(1M) can be improved by using the database
for path name creation. This is either done with a file
created by samdb dump or pipelined together.
Example: Pipelining samdb dump to samfsdump
# samdb dump samfs1 | samfsdump -Y -f /path/samfs1.dump -
SAMDB COMMANDS
A series of commands are provided to configure and query the
SAM-QFS MySQL database. The specific options to the indivi-
dual commands are listed below.
family set
Specifies the family set name of the file system. This
family set name must be configured in the samdb.conf
file.
help
Displays a command syntax summary.
Here is a list of the samdb commands and an explanation of
the options.
samdb check family_set [-f] [-s] [-q]
Checks the database against specified file system for
consistency. This scans the inodes of the filesystem
making sure the entries in the database are correct.
-f
Perform a fast consistency check. This skips checking
the directory namespace in the database, using only
information found in the inode.
-s
Perform a scan without repairing database errors.
-q
Quiet output, only display the number of problems found.
samdb create family_set [-s schema_file]
Creates the database for the specified filesystem.
-s schema_file
Specifies the schema file to use. The default file is
/opt/SUNWsamfs/etc/samdb.schema. The schema file con-
tains a series of CREATE TABLE commands.
samdb dump family_set [-a] [-s] [-f file name]
Generates a list of files for samfsdump.
-a
Use absolute pathnames in file list. This will allow
samfsdump to be ran outside of the root of the filesys-
tem. The default is relative pathnames.
-s
Sort dump file by parent directory ids. This option
groups files together in the dump file based on their
parent directories. Subsequent samfsdump performance
will not be improved when using this option.
-f file name
Specifies file to send output to. If a file is not
supplied, output goes to standard out.
samdb drop family_set
Drops the database for the specified file system. A
confirmation prompt will appear.
samdb load family_set [-f file name]
Loads a database from a samfsdump file. After loading a
database a samdb check should be performed for that
filesystem.
-i
Use an inode scan instead of a load file to load the
database. This can be used if no recent samfsdump file
is available to generate the load file with.
-f filename
The filename of the load file, default is standard
input.This file can be generated by
samfsdump(1M)/samfsrestore(1M) -Z option.
samdb query family_set [-t type] [-c] [-s] [-i inum]
[-f file] [-v vsn]
Queries a database for files or vsns based on provided
file or vsn information. Multiple -ifv terms can be
provided. Like terms are OR'd together, and unlike
terms are AND'd.
-t {vsn,file}
The query type to produce, either vsn or file. If vsn
is chosen a list of vsns matching the -ifv terms will be
output. If file is chosen a list of files matching the
-ifv terms will be output. If both query types are
chosen, e.g. -t vsn -t file, then a list of files broken
down by vsn will be output. The default is file.
-c
Produce a count instead outputing a result list.
Depending on the query type, the output will be the
number of either vsns or files that match the -ifv
terms.
-s
Sort the results. Results are sorted alphabetically
ascending.
-i inum
Match the provided inode number. This is provided to
query the database for which files or vsns have the
given inode number.
-f filename
Match the provided filename. This queries the database
for files that match the given filename. The % wildcard
character can be used within a filename to match multi-
ple files. Paths must either being with a wildcard, or
be absolute relative to the mount point.
For example /dir1/file1 or %dir1/file1 are valid. The
first would match the dir1 directory in the mount point.
The second would match any directory ending in dir1.
-v vsn
Match the provided vsn. Depending on the query type this
will output a list of files on the vsn, or restrict the
results to the provided vsn.
SEE ALSO
samdb.conf(4) samfsdump(1M) samfsrestore(1M)