User manual MAXTOR ST1181677FC VOLUME 1

[. . . ] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Barracuda 180FC Disc Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST1181677FC/FCV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product Manual, Volume 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Barracuda 180FC Disc Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST1181677FC/FCV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] 6. 2. 3 Current profiles Figure 3 identifies the drive +12V current profile. The current during the various times is as shown: T0 T1 T2 T3 Power is applied to the drive. Spindle begins to accelerate under current limiting after performing internal diagnostics. Spindle is up to speed and the Head-Arm restraint is unlocked. Note: All times and currents are typical. See Table 1 for maximum current requirements. +12 Volt Current during spindle start -- Typical Amperes 2. 5 Envelope of waveform Average value of waveform 2. 0 1. 5 A 1. 0 0. 5 0. 0 0 T0 T1 T2 2 4 T3 T4 6 8 Seconds 10 12 14 16 Figure 3. Typical ST1181677FC drive +12V current profile Barracuda 180FC Product Manual, Rev. A 21 +5 Volt Current during spindle start -- Typical Amperes 2. 5 2. 0 1. 5 A 1. 0 Nominal (average) DC curve 0. 5 AC Component 0. 0 T0 T1 T2 0 4 T3 T4 8 12 16 Seconds T5 20 24 28 32 Figure 4. Typical ST1181677FC drive +5V current profile 22 6. 3 Power dissipation Barracuda 180FC Product Manual, Rev. A Typical power dissipation under idle conditions is 10. 5 watts (35. 86 BTUs per hour). To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 5). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5 volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by 3. 4123. 1. 800 1. 600 1. 400 Amperes 1. 200 1. 000 0. 800 0. 600 0. 400 0 50 100 I/Os per Second Figure 5. input/output operations per second 5V A 12V A Watts 17 15 Watts 13 11 150 200 6. 4 Environmental limits Temperature and humidity values experienced by the drive must be such that condensation does not occur on any drive part. Altitude and atmospheric pressure specifications are referenced to a standard day at 58. 7F (14. 8C). Maximum wet bulb temperature is 82F (28C). Operating With cooling designed to maintain the case temperature, the drive meets all specifications over a 41F to 122F (5C to 50C) drive ambient temperature range with a maximum temperature gradient of 36F (20C) per hour. The enclosure for the drive should be designed such that these temperatures are not exceeded. Air flow may be needed to achieve these temperature values (see Section 8. 4). Operation at HDA case temperatures above these values may adversely affect the drives ability to meet specifications. The MTBF specification for the drive is based on operating in an environment that ensures that the HDA case temperatures are not exceeded. Occasional excursions to drive ambient temperatures of 122F (50C) or 41F (5C) may occur without impact to specified MTBF. Air flow may be needed to achieve these temperatures. Continual or sustained operation at HDA case temperatures above these values may degrade MTBF. The maximum allowable continuous or sustained HDA case temperature for the rated MTBF is 122F (50C). [. . . ] (central time) Monday through Friday. Customer Service (CSO) Warranty Service Seagate offers worldwide customer support for Seagate drives. Seagate direct OEM, Distribution and System Integrator customers should contact their Seagate service center representative for warranty information. Other customers should contact their place of purchase. Authorized Service Centers If you live outside the US, you can contact an Authorized Service Center for service. USA/Canada/Latin America Support Services Presales Support Call Center Disc: Tape: Server Appliance: Toll-free 1-877-271-3285 1-800-626-6637 1-800-732-4283 Direct dial +405-936-1210 +1-714-641-2500 +1-405-936-1234 FAX +1-405-936-1683 +1-714-641-2410 +1-405-936-1683 Technical Support (SeaFONE) 1-800-SEAGATE or +1-405-936-1234 (for specific product phone number) FAX: Disc: +1-405-936-1685; Tape and Server Appliance: +1-405-936-1683 SeaFAX SeaTDD SeaBOARD 1-800-SEAGATE +1-405-936-1687 Disc: +1-405-936-1600; Tape: +1-405-936-1630 Toll-free 1-800-468-3472 -- 1-800-636-6349 1-800-624-9857 Direct dial +1-405-936-1456 +1-405-936-1456 +1-905-660-4936 or +1-905-812-8099 or FAX / Internet +1-405-936-1462 +1-405-936-1464 +1-905-660-4951 www. memofix. com +1-905-812-7807 www. adtech1. com +55-21-507-6672 e-mail: sgt_cso@gbl. com. br Warranty Service Call Center USA Mexico and Latin America Canada Memofix1 Adtech* Brazil MA Centro de Servios* -- +55-21-509-7267 1. Authorized Service Centers Barracuda 180FC Product Manual, Rev. A 61 European Support Services For European customer support, dial the toll-free number for your specific country for presales support, technical support, SeaFAX and warranty service. [. . . ]