Fujitsu MAX3073NC Specifications - Page 122
Logical Unit
UPC - 550221511118
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Command Specifications Code 0h 1h 2h 3h-Fh Name Logical Unit Reserved Element (not supported) Reserved Description Persistent reservation applies to an entire logical unit Reserved Persistent reservation applies to the specified element Reserved 3.1.18.3.1.1 Logical Unit scope The "Scope" field value of the Logical Unit indicates that persistent reservations apply to the entire Logical Unit. All of the drives supporting PERSISTENT RESERVE OUT are required to support the scope of the Logical Unit. 3.1.18.3.1.2 Element scope (not supported by MA*3*** series product) The "Scope" field value of the logical unit indicates that persistent reservations apply to the element of the logical unit defined in the "Scope-specific Address" field on the PERSISTENT RESERVE OUT parameter list. An element is defined with the SCSI-3 Medium Changer Commands (SMC) standard. Support of Element Scope is optional. 3.1.18.3.2 Persistent reservations type The "Type" field value defines the reservation attributes applied to data blocks within the logical unit. Table 3.2 shows attributes for four Type values. Table 3.2 shows the code value for each Type and requirements for the supporting drive. The requirements for the supporting drive are explained in two paragraphs. The first paragraph describes the handling required for read operations. The second paragraph describes the handling required for write operations. 3-60 C141-C010