Disk and controllers–Place drives in a volume on separate drive paths. For SCSI drives, this means separate host adapters. Spreading the I/O load 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 on a regular basis.
Volume Integrity–After a slice is defined as a volume and activated, do not use it for any other purpose.
Maximum volumes–The maximum number of volumes supported in a disk set is 8192 (though the default number of volumes is 128). To increase the number of default volumes, edit the /kernel/drv/md.conf file. See System Files and Startup Files for more information on this file.
Information about disks and partitions–Have a copy of output from the prtvtoc and metastat -p command in case you need to reformat a bad disk or re-create your Solaris Volume Manager configuration.