Administrator's Reference

AUDIT VOLUME (Verify Database Information for a Storage Pool Volume)

Use this command to check for inconsistencies between database information and a storage pool volume. You can only audit volumes that belong to storage pools with DATAFORMAT=NATIVE. During the audit, the server sends processing information to the activity log and the server console.

You cannot audit a volume if it is being deleted from a primary or copy storage pool.

While an audit process is active, clients cannot restore data from the specified volume or store new data to that volume.

If the server detects a file with errors, handling of the file will depend on the type of storage pool to which the volume belongs, whether the FIX option is specified on this command, and whether the file is also stored on a volume assigned to other pools.

If TSM does not detect errors for a file that was marked as damaged, the state of the file is reset so that the file can be used.

To display information about the contents of a storage pool volume, use the QUERY CONTENT command.

To audit multiple volumes, you can use the FROMDATE and TODATE parameters, or use the STGPOOL parameter to audit all volumes in a storage pool. When you use the parameters FROMDATE, TODATE, or both, the server limits the audit to only the sequential media volumes that meet the date criteria, and automatically includes all online disk volumes in storage. To limit the number of volumes that may include disk volumes, use the FROMDATE, TODATE, and STGPOOL parameters.

This command creates a background process that can be canceled with the CANCEL PROCESS command. To display information on background processes, use the QUERY PROCESS command.

Privilege Class

To issue this command, you must have system privilege, unrestricted storage privilege, or restricted storage privilege for the storage pool to which the volume is defined.

Syntax

                                  .-Fix--=--No------.
>>-AUDit Volume--+-volume_name-+--+-----------------+----------->
                 '-| A |-------'  '-Fix--=--+-No--+-'
                                            '-Yes-'
 
   .-SKIPPartial--=--No------.  .-Quiet--=--No------.
>--+-------------------------+--+-------------------+----------><
   '-SKIPPartial--=--+-No--+-'  '-Quiet--=--+-No--+-'
                     '-Yes-'                '-Yes-'
 
A (at least one of these parameters must be specified)
 
|--+-----------------------------+------------------------------>
   |  (1)                        |
   '--------STGPool--=--poolname-'
 
      (1)                                            (1)
   .--------FROMDate--=--TODAY-.  .-TODate--=--TODay------.
>--+---------------------------+--+-----------------------+-----|
   '-FROMDate--=----date-------'  '-TODate--=----date-----'
 
 

Notes:

1. You cannot specify a volume name if you specify a storage pool name, FROMDATE, or TODATE.

Parameters

volume_name

Specifies the name of the storage pool volume you want to audit. This parameter is required if you do not specify a storage pool. You cannot specify a volume name together with the FROMDATE and TODATE parameters.

Fix

Specifies how the server resolves inconsistencies between the database inventory and the specified storage pool volume. This parameter is optional. The default is NO.

The actions the server performs depend on whether the volume is assigned to a primary or a copy storage pool.

Primary Storage Pool:

Note:

If the AUDIT VOLUME command does not detect an error in a file that was previously marked as damaged, TSM resets the state of the file so that it can be used. This provides a means for resetting the state of damaged files if it is determined that the errors were caused by a correctable hardware problem such as a dirty tape head.

Fix=No

TSM reports, but does not delete, database records that refer to files with inconsistencies:

• TSM marks the file as damaged in the database. If a backup copy is stored in a copy storage pool, you can restore the file using the RESTORE VOLUME or RESTORE STGPOOL command.
• If the file is a cached copy, you must delete references to the file on this volume by issuing the AUDIT VOLUME command and specifying FIX=YES. If the physical file is not a cached copy, and a duplicate is stored in a copy storage pool, it can be restored by using the RESTORE VOLUME or RESTORE STGPOOL command.

Fix=Yes

The server fixes any inconsistencies as they are detected:

• If the physical file is a cached copy, the server deletes the database records that refer to the cached file. The primary file is stored on another volume.
• If the physical file is not a cached copy, and the file is also stored in one or more copy storage pools, the error will be reported and the physical file marked as damaged in the database. You can restore the physical file by using the RESTORE VOLUME or RESTORE STGPOOL command.
• If the physical file is not a cached copy, and the physical file is not stored in a copy storage pool, each logical file for which inconsistencies are detected are deleted from the database.

Note:

Do not use the AUDIT VOLUME command with FIX=YES if a restore process (RESTORE STGPOOL or RESTORE VOLUME) is running. The AUDIT VOLUME command could cause the restore to be incomplete.

Copy Storage Pool:

Fix=No

The server reports the error and marks the physical file copy as damaged in the database.

Fix=Yes

The server deletes any references to the physical file and any database records that point to a physical file that does not exist.

SKIPPartial

Specifies whether TSM ignores skipped files, which are files that span multiple storage pool volumes. This parameter is optional. The default value is NO. When performing an audit operation on a sequential access media volume, this parameter prevents additional sequential access media mounts that may be necessary to audit any skipped files. Possible values are:

No

TSM audits files that span multiple volumes.

Unless you specify SKIPPARTIAL=YES, TSM attempts to process each file stored on the volume, including files that span into and out of other volumes. To audit files that span multiple volumes, the following conditions must be true:

• For sequential access volumes, the additional sequential access volumes must have an access mode of read/write or read-only.
• For random access volumes, the additional volumes must be online.

Yes

TSM audits only files that are stored on the volume to be audited. The status of any skipped files is unknown.

Quiet

Specifies whether TSM sends detailed informational messages to the activity log and the server console about irretrievable files on the volume. This parameter is optional. The default is NO. Possible values are:

No

Specifies that TSM sends detailed informational messages and a summary. Each message contains the node, file space, and client name for the file.

Yes

Specifies that TSM sends only a summary report.

FROMDate

Specifies the beginning date of the range to audit volumes. The default is the current date. All sequential media volumes meeting the time range criteria that were written to after this date are audited. The server includes all online disk volumes in storage . The server starts one audit process for each volume and runs the process serially. You cannot use this parameter if you have specified a volume. This parameter is optional. To limit the number of volumes that may include disk volumes, use the FROMDATE, TODATE, and STGPOOL parameters.

You can specify the data by using one of the values below:

Value	Description	Example
MM/DD/YYYY	A specific date	10/15/2001 If a date is entered, all candidate volumes written on that day (starting at 12:00:01 am) will be evaluated.
TODAY	The current date	TODAY
TODAY-days or -days	The current date minus days specified. The maximum number of days you can specify is 9999.	TODAY -7 or -7. To display information beginning with volumes written a week ago, you can specify FROMDATE=TODAY-7 or FROMDATE= -7.

TODate

Specifies the ending date of the range for volumes to audit. All sequential media volumes meeting the time range criteria that were written to before this date are audited. The server includes all online disk volumes in storage . If you do not specify a value, the server defaults to the current date. You cannot use this parameter if you have specified a volume. This parameter is optional. To limit the number of volumes that may include disk volumes, use the FROMDATE, TODATE, and STGPOOL parameters.

You can specify the date by using one of the values below:

Value	Description	Example
MM/DD/YYYY	A specific date	10/15/2001 If a date is entered, all candidate volumes written on that day (ending at 11:59:59 pm) will be evaluated.
TODAY	The current date	TODAY
TODAY-days or -days	The current date minus days specified. The maximum number of days you can specify is 9999.	TODAY-1 or -1. To display information created up to yesterday, you can specify TODATE=TODAY-1 or simply TODATE= -1.

STGPool

This parameter specifies that the server only audits the volumes from the specified storage pool. This parameter is optional. You cannot use this parameter if you have specified a volume.

Examples

Task

Verify that the database information for storage pool volume PROG2 is consistent with the data stored on the volume. TSM fixes any inconsistencies.

Command:

audit volume prog2 fix=yes

Task

Verify that the database information for all eligible volumes written to from 3/20/2002 to 3/22/2002 is consistent with data stored on the volume.

Command:

audit volume fromdate=032002 todate=032202

Task

Verify that the database information for all volumes in storage pool STPOOL3 is consistent with data stored on the volume for today.

Command:

audit volume stgpool=STPOOL3

Task

Verify that the database information for all volumes in storage pool STPOOL3 is consistent with data stored on the volume for the last two days.

Command:

audit volume stgpool=STPOOL3 fromdate=-1

Related Commands

Table 16. Commands Related to AUDIT VOLUME