10 | Marathon 810 (ST9816AG) Product Manual, August 1995 |
is system-dependent and is usually established using the system setup utility. In Standby mode, the buffer remains enabled, the heads are parked and the spindle is at rest. The drive accepts all commands and returns to Active mode any time disc access is necessary.
Sleep mode. The drive enters Sleep mode after receiving a Sleep Immediate command from the host. The heads are parked and the spindle is at rest. The drive leaves Sleep mode when a Hard Reset or Soft Reset command is received from the host. After receiving a soft reset, the drive exits Sleep mode and enters Standby mode with all current emulation and translation parameters intact.
Idle and standby timers. The drive sets the default time delay for the idle timer at power-on. In most systems, you can set this delay using the system setup utility. Each time the drive performs an Active function (read, write or seek), the idle and standby timers are reinitialized and begin counting down from their specified delay times to zero. If the idle timer reaches zero before any drive activity is required, the drive enters Idle mode. If the host has set the standby timer, the standby countdown continues. If the host has not set the standby timer, the drive remains in Idle mode. If the standby timer reaches zero before any drive activity is required, the drive enters Standby mode. In both Idle and Standby mode, the drive accepts all commands and returns to Active mode when disc access is necessary.
1.8 Environmental tolerances
1.8.1Ambient temperature
Operating | 5° to 55°C (41° to 131°F) |
Nonoperating | –40° to 70°C (–40° to 158°F) |
1.8.2Temperature gradient
Operating | 30°C / hr | (54°F / hr) max, without condensation |
Nonoperating | 30°C / hr | (54°F / hr) max, without condensation |
1.8.3Relative humidity
Operating | 8% to 80% noncondensing (10% per hour max) |
| Max. wet bulb temperature: 29.4°C (85°F) |
Nonoperating | 8% to 80% noncondensing (10% per hour max) |
| Max. wet bulb temperature: 40°C (104°F) |
