The rmflash command
removes a relationship between FlashCopy volume pairs.

>>-rmflash--+-------------------------+--+---------+------------>
'- -dev--storage_image_ID-' '- -quiet-'
>--+-----------+--+------+--+-------------------+--+--------+--->
'- -tgtonly-' '- -cp-' '- -resettgtinhibit-' '- -wait-'
>--+---------------------------------+-------------------------->
'- -seqnum--flash_sequence_number-'
>--+-SourceVolumeID:TargetVolumeID--+-------+-+----------------><
| '-. . .-' |
'-" - "------------------------------------'
Parameters
Notes: - Invoking this command with the -cp parameter on a FlashCopy relationship
that was previously marked with the -persist parameter will not remove
the relationship. Instead, the source data is copied to the target.
- Invoking this command with the -resettgtinhibit parameter does
not withdraw the relationship, but resets the -tgtinhibit parameter
if it was previously set.
- All settings apply to all FlashCopy pairs specified.
- Do not use the -wait parameter on persistent relations.
- The-seqnum parameter is not supported for a 2105 machine type.
- -dev storage_image_ID
- (Optional) Specifies the storage image ID, which includes manufacturer,
machine type, and serial number. This parameter is required if you do not
specify a fully qualified ID for the source and target volumes and you do
not specify a value for the devid variable
in your profile file.
- Example: IBM.1750-68FA120
- -quiet
- (Optional) Specifies that the confirmation prompt for this command be
turned off.
- -tgtonly
- (Optional) Specifies the target volume of the FlashCopy pair to remove
the relationship. In addition, the Copy Indicator for the target
volume is reset.
Note: If you use the -tgtonly parameter
on CKD volumes, any dataset level relationships created by a S/390 host are
removed from the specified target volume.
- -cp
- (Optional) Specifies that the FlashCopy relationship be changed from No
Copy to Copy and that the remaining source volume tracks
be copied to the target volume. The relationship is removed when all the
data is copied unless the relationship is persistent. When this parameter
is specified, the copy takes place for all volume pairs where the source volume
ID is identical to the source volume specified in the command.
- -resettgtinhibit
- (Optional) Specifies that the flag that does not allow host system write
operations to the target ID while the FlashCopy relationship exists be reset,
in case it was previously set.
Note: Specifying this parameter in itself does not cause the FlashCopy
relationship to be withdrawn.
- -wait
- (Optional) Specifies that the command response be delayed until the background
copy process completes.
Notes: - Only pairs of source and target volume IDs are allowed when you use the -wait parameter.
- The -cp parameter must be used with the -wait parameter.
- Do not use the -wait parameter on relationships that are marked -persist,
an error occurs when this is done.
- -seqnum flash_sequence_num
- (Optional) Specifies the FlashCopy sequence number. When this number is
specified, the rmflash operation is performed only
on those relationships associated with the specified number.
- Example: 0010
Note: This parameter is not supported for a 2105 machine type.
- SourceVolumeID:TargetVolumeID . . . | -
- (Required) Specifies the source and target volume pairs for which the
FlashCopy relationships are removed. This parameter accepts a fully qualified
volume ID, which includes storage image IDs, or a shortened version without
storage image IDs if the -dev parameter is specified or you specify
a value for the devid variable in your profile
file. You must separate multiple FlashCopy pair IDs with spaces.
- A FlashCopy pair ID consists of two volume IDs, one designated as the
source and the other as the target volume for a FlashCopy relationship. You
must separate the two volume IDs of a FlashCopy pair ID with a colon and no
space. The first volume ID is the source volume. The second volume ID is the
target volume.
- When the -tgtonly parameter is specified, you must
enter volume IDs. Volume pair IDs are not valid with the -tgtonly parameter.
- The volume ID is a 32 bit number that can be represented as 4 hexadecimal
digits in the form of XYZZ where X is the address group (0 -
1), XY together is the logical subsystem number 00
- 1E (for 1750) , and ZZ is
the volume number (00 - FF).
- If you specify the dash (-), this parameter information is automatically
supplied. However, you cannot use this feature if you are using the DS CLI
interactive command mode.
- Example of a fully qualified FlashCopy pair ID: IBM.1750-68FA120/0001:IBM.1750-68FA120/0004
- Example of a shortened version: 0001:0004
- Example of multiple pairs: 0001:0004 0003:00FF 0008:000C
Example (1750)
Invoking
the rmflash commanddscli>rmflash
IBM.1750-68FA12/00100:1750-68FA12/0200
The
resulting outputDate/Time: Sun Aug 11 02:23:49 PST 2004 DS CLI Version: 5.0.0.0
DS: IBM.1750-68FA120
Are you sure you want to remove the FlashCopy pair
IBM.1750-68FA120/0001:IBM.1750-68FA120/0002? [y/n]: Y
FlashCopy pair IBM.1750-68FA120/0100:IBM.1750-68FA120/0200 successfully removed.