HP P6000 Continuous Access Implementation Guide (T3680-96431, August 2012)

log group assignment and specify the location of the log when you create the DR group. For
version-specific features, see the HP P6000 Enterprise Virtual Array Compatibility Reference.
IMPORTANT: When using XCS 6.000 or later, create the DR group write history log using online
Fibre Channel disks, not near-online disks. Constant writes to the DR group write history log in
enhanced asynchronous mode significantly shorten the expected lifetime of near-online disks. Using
online disks for the DR log also improves I/O performance. When using XCS 09003000 or later,
select online disks for the DR group write history log by default. The ability to specify DR group
write history log location and size is not supported with VCS 3.xxx.
Planning for DR group write history logs 45