Promise Technology EX8654, EX8658, EX8650, EX4650 manual Maximum amount of usable space

	Chapter 6: Management with the CLI
GBTruncate	Truncates the drive to the nearest 1-billion byte
	boundary.
10GBTruncate	Truncates the drive to the nearest 10-billion byte
	boundary.
GrpRounding	Truncates the drive using an intelligent algorithm. Allows
	the maximum amount of usable space.
TableRounding	Truncates the drive using a pre-defined coercion table.
smart=	Enables or disables polling drive SMART status.
enable
disable
smartpollinginterval=	Sets the time interval in number of minutes to poll the
	drive SMART status.
1..1440
cacheflushinterval=	Sets the time interval in seconds to flush the controller
	writeback cache.
1..12
migrationstorage=	Sets location to store the migration watermark.
ddf	Uses the DDF area on the physical drives of the disk
	array.
nvram	Uses the NVRAM on the controller.
lunaffinity=	Subsystems only. Enables or disables LUN affinity,
	allowing LD access only to certain controller. For
	subsystems with dual controllers.
enable
disable
pollinterval=	Sets interval in seconds to poll enclosure SEP
	information.
15..255
lunmapping=	Subsystems only. Chooses WWN based or Slot based
	LUN mapping method.
wwn
slot
adaptivewbcache=	Enables or disables adaptive writeback cache.
enable	Writeback logical drives will change the write policy
	based on the availability of protection. If BBU or UPS is
	available, the write policy is retained as Writeback,
	otherwise the policy is switched to Writethru.

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