Navisphere Command Line Interface (CLI) Reference - VMware Communities

Basic CommandsNote: It is not possible to change the rebuild priority for a LUN that is inthe process of rebuilding. You can change the value, but it will have noeffect.The time it takes to actually rebuild a LUN can vary significantly,especially for a RAID 1/0 LUN, since a RAID 1/0 LUN with ndisk modules can continue functioning with up to as many as n/2failed drive modules and only one drive at a time is rebuilt.-rt retain-prefetch-data (Not supported on AX4-5 series and AX series)Enables or disables retaining prefetch data functionality.retain-prefetch-data specifies functionality as follows:0 = Disables retaining prefetch data functionality1 = Enables retaining prefetch data functionality-sm prefetch-segmnt-size/mult (AX4-5 series running NavisphereManager and CX series only)Sets the segment size for data prefetched for one host read requestas follows:If -pf prefetch-type is set to constant length, segmnt-size/multspecifies the size of the segment in blocks. Valid range: 0-2048blocks.If -pf prefetch-type is set to variable length, segmnt-size/multspecifies the multiplier used to determine the segment size. Validrange: 0-32.-t idle-delay-time (AX4-5 series running Navisphere Manager and CXseries only)Sets the amount of time that a LUN must be below the idle-thresh(see below) in order to be considered idle. idle-delay-time specifiesthe delay time in 100 ms units. For example, 5 equals 500 ms.Once a LUN is considered idle, any dirty pages in the cache canbegin flushing. Legal idle-delay-time values range from 0 through254.-v verify-priority (AX4-5 series running Navisphere Manager and CXseries only)Sets the priority at which to verify data on a LUN if an SP failsand is replaced during I/O operations. verify-priority specifiespriority level. Valid values are ASAP, High, Medium, and Low.96 EMC Navisphere Command Line Interface (CLI) Reference