Navisphere Command Line Interface (CLI) Reference - VMware Communities

Basic Commands-pf prefetch-type (Not supported on AX4-5 series and AX series)Sets or disables the prefetch type as follows:0 = Disables prefetch1 = Constant length prefetch type2 = Variable length prefetch type-pm pf-size-or-multiplier (AX4-5 series running Navisphere Managerand CX series only)Sets the amount of data or the prefetch multiplier prefetched forone host read request as follows:For constant length prefetching: 0-2048.For variable length prefetching: 0-32If prefetch-type (see below) is set to constant length,pf-size-or-multiplier specifies the number of blocks to prefetch. Thevalid range is 0-2048 blocks.If prefetch-type is set to variable length, pf-size-or-multiplierspecifies the multiplier used to determine the amount of data toprefetch. The valid range is 0-32. For example, if the value is 8, theamount of data to prefetch is 8 times the amount of datarequested.The default value for pf-size-or-multiplier is 4.-r rebuild-priority (Not supported on AX4-5 series and AX series)Sets the rebuild priority. rebuild-priority specifies the priority atwhich to reconstruct data on either a hot spare or a new diskmodule that replaces a failed disk module in a LUN. It applies toall RAID LUNs types except RAID 0 and individual disks. Validvalues are ASAP, High, Medium, and Low. The default is ASAP.The priority that you specify determines the amount of resourcethat the SP devotes to rebuilding instead of to normal I/Oactivity. The default value is adequate for most situations. Arebuild priority of ASAP rebuilds the disk module as quickly aspossible, but degrades response time significantly. If your siterequires fast response time and you want to minimizedegradation to normal I/O activity, you can extend the rebuildover a longer period of time by specifying the Low rebuildpriority.95