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Promise Technology
Pegasus3 R4/R6/R8
Sector Size
A sector is the smallest addressable area on a physical drive. Sector size refers to the number of data
bytesasectorcanhold.Asmallersectorsizeisamoreefcientuseofaphysicaldrive’scapacity.512
bytes (512 B) is the most common sector size, and the default in the Pegasus Utility.
When you create your logical drive using the Wizard Advanced option or you create a logical drive
manually, you can choose a sector size of 512 B, 1 KB, 2 KB, or 4 KB.
See “Creating a Disk Array and Logical Drive with the Wizard” on page 112 and “Creating a Logical
Drive Manually” on page 134.
Initialization
Initialization is done to logical drives after they are created from a disk array. Full initialization sets
alldatabitsinthelogicaldrivetoaspeciedpattern,suchasallzeros.Theactionisusefulbecause
theremayberesidualdataonthelogicaldrivesleftbehindfromearliercongurations.Forthisreason,
Initialization is recommended for all new logical drives.
See “Initializing a Logical Drive” on page 138.