Disk and controllers – Place drives in a volume on separate drive paths, or for SCSI drives, separate host adapters. An I/O load distributed over several controllers improves volume performance and availability.
System files – Never edit or remove the /etc/lvm/mddb.cf or /etc/lvm/md.cf files.
Make sure these files are backed up regularly.
Volume Integrity – If a slice is defined as a volume, do not use the underlying slice for any other purpose, including using the slice as a dump device.
Information about disks and partitions – Keep a copy of output from the prtvtoc and metastat -p commands in case you need to reformat a bad disk or recreate your Solaris Volume Manager configuration.