Chapter 8. Configuring Units108 3ware Serial ATA RAID Controller User GuideTo partition, format, and mount under FreeBSD1 Boot the system and log in as root.2 Open a terminal window.3 Partition the unit:fdisk -BI /dev/da0;disklabel /dev/da0 | disklabel -B -R -r da04 Create or make the file system:newfs /dev/da0c5 Mount the volume:mount /dev/da0c /mntYou can also use sysinstall to format and partition the unit.Creating a Hot SpareYou can designate an available drive as a hot spare. If a redundant unitdegrades and a hot spare the size of the degraded disk (or larger) is available,the hot spare will automatically replace the failed drive in the unit withoutuser intervention.It is a good idea to create a hot spare after you create a redundant unit.In order to replace a failed drive, a hot spare must have the same or largerstorage capacity than the drive it is replacing.The Auto Rebuild policy allows automatic rebuilding to occur with availabledrives that are not designated as spares. For more information, see “Settingthe Auto Rebuild Policy” on page 90.Note: When a hot spare replaces a failed drive, an event notification is generatedand appears in the list of alarms in 3DM. You can also have 3DM send you an emailabout this. See “Managing E-mail Event Notification” on page 82.
