Seagate ST32122A Product Manual - Page 15

Medalist 4342, 3232, 2122, 1722 and 1012 Product Manual 7 Internal data-transfer rate (Mbits per second max) I/O data-transfer rate (Mbytes per second max) Interleave Cache buffer (Kbytes) 87.8 16.7 (PIO mode 4 with IORDY) 16.7 (multiword DMA mode 2) 33.3 (Ultra DMA mode 1 and 2) 1:1 128 1.4 Physical characteristics ST34342A ST33232A Maximum height (mm) (inches) Maximum width (mm) (inches) Maximum length (mm) (inches) Typical weight (grams) 540 (ounces) 19.04 ST32122A ST31722A ST31012A 26.2 1.03 102.4 4.03 146.8 5.78 510 17.98 500 17.68 1.5 Seek time All seek times are measured using a 486 AT computer (or faster) with a 8.3 MHz I/O bus. The measurements are taken with nominal power at 25°C ambient temperature. All times are measured using drive diagnostics. The specifications in the table on page 8 are defined as follows: • Track-to-track seek time is an average of all possible single-track seeks in both directions. • Average seek time is a true statistical random average of at least 5,000 measurements of seeks between random tracks, less overhead. • Full-stroke seek time is one-half the time needed to seek from the first data cylinder to the maximum data cylinder and back to the first data cylinder. The full-stroke typical value is determined by averaging 100 full-stroke seeks in both directions.