PAGESET_PAGENUM PEER_RECOVERY REMOTE_COPY_SW_ACCEL REMOTE_COPY_SW_ACCEL specifies whether Db2 uses software to control the remote  copy process for active log writes in Peer-to-Peer Remote Copy (PPRC) environments. The following values for REMOTE_COPY_SW_ACCEL are acceptable: For more information about the performance-related test results on peer recovery, see 4.7,  “Db2 peer recovery” on page 149. The default value for PEER_RECOVERY is NONE. The following values for PEER_RECOVERY are acceptable: PEER_RECOVERY specifies whether a data sharing member is to participate in data sharing  peer recovery. For more information about how relative page numbering works and related performance test  results, see 2.5, “Range-partitioned table spaces with relative page numbering ” on page 63. Note:  It is recommended that the same value is used on all data sharing members to  maintain consistency. The use of this value avoid situations, such as there being different  page numbering schemes for a table space. This kind of situation can occur by running the  same CREATE TABBLESPACE DML without specifying the PAGENUM option on different  Db2 members. The default value of PAGESET_PAGENUM is ABSOLUTE. PAGESET_PAGENUM specifies whether range-partitioned table spaces and the associated  partitioned indexes that are created are to use absolute page numbers across partitions, or  relative page numbers by default. The following values for PAGESET_PAGENUM are acceptable: GLYPH<SM590000> ABSOLUTE: Range-partitioned table spaces and associated indexes are created with  absolute page numbers, as is the case in Db2 11. GLYPH<SM590000> RELATIVE: Range-partitioned table spaces are created so that PGNUM in the page  header has no partition number, and the partition number is contained only in the header  page for the partition. GLYPH<SM590000> NONE: This member is not to participate in peer recovery. Use this option if you  configured the z/OS Automatic Recovery Manager (ARM) to restart failed Db2 members. GLYPH<SM590000> RECOVER: This member should be recovered by a peer member if it fails. GLYPH<SM590000> ASSIST: This member should attempt to start peer recovery for other failed members.  When this member detects a failure, it attempts to start a LIGHT(YES) restart for the failed  member if it does not start to recover the retained locks. GLYPH<SM590000> BOTH: RECOVER and ASSIST options are to be activated for this member. GLYPH<SM590000> DISABLE: The hardware PPRC function is used if available. This setting is appropriate for  non-PPRC environments. GLYPH<SM590000> ENABLE: The host software is used. This option can improve overall Db2 performance in  PPRC environments at the expense of some additional SRB CPU time in the xxxxMSTR  address space. z/OS Version 2 Release 1 or later is required to support this function. Chapter 11. Installation and migration  337