Changing reserve volumes for the RLOG files (MODIFY RESERVE)

 MODIFY RESERVE,
        VALUE={NONE |
               :catid: |
               PUBLIC |
               (priv-vsn-1/device-1[,priv-vsn-2 device-2
                [,priv-vsn-3 device-3]]) |
               (vsn-1[,vsn-2[,vsn-3]])}

:catid:	BS2000 catalog ID (see section “Using pubsets in UDS/SQL”).
PUBLIC
	Public disk (PUBLIC VOLUME) under the default catalog ID of the configuration user ID.
priv-vsn
	The RLOG file is created on the private disks specified as reserve volumes. Up to three volume serial numbers can be specified, no two of which may be the same. A volume serial number may comprise up to six alphanumeric characters.
device	Device type of the private disk. The device type may comprise up to eight alphanumeric characters.
vsn	Disks which are allocated to an SF pubset or to a volume set of an SM pubset are specified as reserve volumes for the RLOG file. Up to three VSNs can be specified, no two of which may be the same. The VSN can be specified in PUB notation (PUBpxx) or in dot notation (pp[pp].[xy]z). Please also take into account "Additional conditions for VSN specifications" in chapter "Changing the allocation of volumes for the RLOG files".

You may specify up to three volumes.

A DAL command may be up to 64 characters in length. With long volume specifications the abbreviations MOD, RES and VAL can be used.

The DAL command MODIFY RESERVE is used to change the reserve volumes for files to be newly created, or to specify no reserve volumes. The reserve volumes were originally specified with the load parameter PP RESERVE.

The new volumes are securely recorded in the session log file (SLF) for use in a session restart.

The reserve volumes specified may not be the same as those currently in effect for PP LOG and PP LOG-2. This is checked when a reserve volume is needed.

The new setting must correspond to a pubset which is located within the pubset space of the current UDS/SQL pubset declaration. Between an accepted DAL NEW PUBSETS and the subsequent PERFORM, the new setting must correspond to a pubset which is also located within the pubset space of the new UDS/SQL pubset declaration. If these conditions are not fulfilled, the MODIFY RESERVE command is rejected.