Seagate 5T060H6 Specifications - Page 12

PRODUCT DESCRIPTION Product Features Functional / Interface Maxtor hard drives contain all necessary mechanical and electronic parts to interpret control signals and commands from an AT-compatible host computer. See Section 3 Product Specifications, for complete drive specifications. Zone Density Recording The disk capacity is increased with bit density management - common with Zone Density Recording. Each disk surface is divided into 16 circumferential zones. All tracks within a given zone contain a constant number of data sectors. The number of data sectors per track varies in different zones; the outermost zone contains the largest number of data sectors and the innermost contains the fewest. Read / Write Multiple Mode This mode is implemented per ANSI ATA/ATAPI-5 specification. Read/Write Multiple allows the host to transfer a set number of sectors without an interrupt request between them, reducing transfer process overhead and improving host performance. UltraDMA - Mode 5 Maxtor hard drives fully comply with the new ANSI Ultra DMA protocol, which greatly improves overall AT interface performance by significantly improving burst and sustained data throughput. Multi-word DMA (EISA Type B) - Mode 2 Supports multi-word Direct Memory Access (DMA) EISA Type B mode transfers. Sector Address Translation All Maxtor hard drives feature a universal translate mode. In an AT/EISA-class system, the drive may be configured to any specified combination of cylinders, heads and sectors (within the range of the drive's formatted capacity). Maxtor hard drives power-up in a translate mode: MODEL S 5 T0 6 0 H6 5 T0 4 0 H4 5 T0 3 0 H3 5 T0 2 0 H2 5 T0 1 0 H1 C YL 119 150 79 408 59 554 39 704 19 852 HD SP T 16 63 16 63 16 63 16 63 16 63 MAX LB A 120 103 200 80 043 264 60 030 432 40 021 632 20 010 816 C APAC IT Y 61.5 GB 40.9 GB 30.7 GB 20.4 GB 10.2 GB Logical Block Addressing The Logical Block Address (LBA) mode can only be utilized in systems that support this form of translation. The cylinder, head and sector geometry of the drive, as presented to the host, differs from the actual physical geometry. The host AT computer may access a drive of set parameters: number of cylinders, heads and sectors per track, plus cylinder, head and sector addresses. However, the drive can't use these host parameters directly because of zoned recording techniques. The drive translates the host parameters to a set of logical internal addresses for data access. The host drive geometry parameters are mapped into an LBA based on this formula: LBA = (HSCA - 1) + HHDA x HSPT + HNHD x HSPT x HCYA (1) = (HSCA - 1) + HSPT x (HHDA + HNHD x HCYA) (2) where HSCA = Host Sector Address, HHDA = Host Head Address HCYA = Host Cylinder Address, HNHD = Host Number of Heads HSPT = Host Sectors per Track 2 - 2