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split dasalvager and salvager documentation. refer both ways between docs. Change-Id: I33480cae671c3f50d47a5a4f8407a07f268164a1 Reviewed-on: http://gerrit.openafs.org/2442 Reviewed-by: Derrick Brashear <shadow@dementia.org> Tested-by: Derrick Brashear <shadow@dementia.org>
172 lines
5.3 KiB
Plaintext
172 lines
5.3 KiB
Plaintext
=over 4
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=item [I<initcmd>]
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Accommodates the command's use of the AFS command parser, and is optional.
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=item B<-partition> <I<name of partition to salvage>>
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Specifies the name of the partition to salvage. Specify the full partition
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name using the form F</vicepI<x>> or F</vicepI<xx>>. Omit this argument to
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salvage every partition on the file server machine.
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=item B<-volumeid> <I<volume id to salvage>>
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Specifies the volume ID of a specific read/write volume to salvage. The
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B<-partition> argument must be provided along with this one and specify
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the volume's actual site.
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=item B<-debug>
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Allows only one Salvager subprocess to run at a time, regardless of the
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setting of the B<-parallel> option. Include it when running the Salvager
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in a debugger to make the trace easier to interpret.
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=item B<-nowrite>
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Brings all undamaged volumes online without attempting to salvage any
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damaged volumes.
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=item B<-inodes>
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Records in the F</usr/afs/logs/SalvageLog> file a list of all AFS inodes
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that the Salvager modified.
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=item B<-force>
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Inspects all volumes for corruption, not just those that are marked as
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having been active when a crash occurred.
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=item B<-oktozap>
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Removes a volume that is so damaged that even issuing the B<vos zap>
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command with the B<-force> flag is ineffective. Combine it with the
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B<-partition> and B<-volumeid> arguments to identify the volume to remove.
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Using this flag will destroy data that cannot be read, so use only with
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caution and when you're certain that nothing in that volume is still
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needed.
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=item B<-rootinodes>
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Records in the F</usr/afs/logs/SalvageLog> file a list of all AFS inodes
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owned by the local superuser C<root>.
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=item B<-salvagedirs>
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Salvages entire directory structures, even if they do not appear to be
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damaged. By default, the Salvager salvages a directory only if it is
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flagged as corrupted.
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=item B<-blockreads>
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Forces the Salvager to read a partition one disk block (512 bytes) at a
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time and to skip any blocks that are too badly damaged to be salvaged.
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This allows it to salvage as many volumes as possible. By default, the
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Salvager reads large disk blocks, which can cause it to exit prematurely
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if it encounters disk errors. Use this flag if the partition to be
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salvaged has disk errors.
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=item B<-parallel> <I<# of max parallel partition salvaging>>
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Specifies the maximum number of Salvager subprocesses to run in parallel.
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Provide one of three values:
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=over 4
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=item *
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An integer from the range C<1> to C<32>. A value of C<1> means that a
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single Salvager process salvages the partitions sequentially.
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=item *
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The string C<all> to run up to four Salvager subprocesses in parallel on
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partitions formatted as logical volumes that span multiple physical
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disks. Use this value only with such logical volumes.
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=item *
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The string C<all> followed immediately (with no intervening space) by an
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integer from the range C<1> to C<32>, to run the specified number of
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Salvager subprocesses in parallel on partitions formatted as logical
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volumes. Use this value only with such logical volumes.
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=back
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The BOS Server never starts more Salvager subprocesses than there are
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partitions, and always starts only one process to salvage a single
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volume. If this argument is omitted, up to four Salvager subprocesses run
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in parallel but partitions on the same device are salvaged serially.
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=item B<-tmpdir> <I<name of dir to place tmp files>>
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Names a local disk directory in which the Salvager places the temporary
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files it creates during a salvage operation, instead of writing them to
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the partition being salvaged (the default). If the Salvager cannot write
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to the specified directory, it attempts to write to the partition being
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salvaged.
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=item B<-showlog>
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Displays on the standard output stream all log data that is being written
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to the F</usr/afs/logs/SalvageLog> file.
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=item B<-showsuid>
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Displays a list of the pathnames for all files that have the setuid or
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setgid mode bit set.
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=item B<-showmounts>
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Records in the F</usr/afs/logs/SalvageLog> file all mount points found in
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each volume. The Salvager does not repair corruption in the volumes, if
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any exists.
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=item B<-orphans> (ignore | remove | attach)
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Controls how the Salvager handles orphaned files and directories. Choose
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one of the following three values:
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=over 4
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=item ignore
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Leaves the orphaned objects on the disk, but prints a message to the
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F</usr/afs/logs/SalvageLog> file reporting how many orphans were found and
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the approximate number of kilobytes they are consuming. This is the
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default if the B<-orphans> argument is omitted.
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=item remove
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Removes the orphaned objects, and prints a message to the
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F</usr/afs/logs/SalvageLog> file reporting how many orphans were removed
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and the approximate number of kilobytes they were consuming.
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=item attach
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Attaches the orphaned objects by creating a reference to them in the vnode
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of the volume's root directory. Since each object's actual name is now
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lost, the Salvager assigns each one a name of the following form:
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=over 4
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=item C<__ORPHANFILE__.I<index>> for files.
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=item C<__ORPHANDIR__.I<index>> for directories.
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=back
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where I<index> is a two-digit number that uniquely identifies each
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object. The orphans are charged against the volume's quota and appear in
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the output of the B<ls> command issued against the volume's root
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directory.
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=back
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=item B<-help>
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Prints the online help for this command. All other valid options are
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ignored.
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=back
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