Navisphere Command Line Interface (CLI) Reference - VMware Communities

LUN Expansion (MetaLUN) Commands-expansionrate low|medium|high|ASAP|valueSpecifies the relative importance of making additional LUNcapacity available to the host. It determines the amount ofresources the SP devotes to re-striping the existing data on theoriginal LUNs across the original LUNs and the new LUNsinstead of to normal I/O activity. This rate is available only whenyou first create a metaLUN and is important only for a stripeexpansion. Valid rebuild priorities are ASAP (default) or 3, Highor 2, Medium or 1, and Low, or 0.An expansion rate of ASAP or High re-stripes the data across themetaLUN faster than one with Medium or Low priority, but maydegrade storage-system performance.-name metaLUN-nameSpecifies the name of the metaLUN. If you do not specify a name,it defaults to the name of the base LUN.-nogrowKeeps the available user capacity of the metaLUN the same as itwas before adding LUNs. You cannot use the added capacityuntil you change the capacity using the -modify switch.For a stripe expansion, any existing data is restriped across theoriginal storage and any new LUNs, but you cannot access theadded capacity at this time.-oExecutes the command without prompting for confirmation.-preservedata 1|0Use with the -type S command (see page 336). Allows you topreserve or overwrite any existing data on the base LUN, only ifthe base LUN is outside a storage group.Note: You cannot use this command with the -type C switch.If the base LUN is outside of a storage group, do one of thefollowing:• Specify 1 to enable stripe expansion and preserve the data onthe base LUN. Note that this operation could take a while. Thedefault value is 1.335