User manual MAXTOR ST336752 VOLUME 1

[. . . ] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cheetah X15 36LP Disc Drive: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST336752LW/LC, ST336732LW/LC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST318452LW/LC, ST318432LW/LC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product Manual, Volume 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cheetah X15 36LP Disc Drive: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST336752LW/LC, ST336732LW/LC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST318452LW/LC, ST318432LW/LC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product Manual, Volume 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ©2001, 2002 Seagate Technology LLC All rights reserved Publication number: 100139872, Rev. D June 2002 Seagate, Seagate Technology, and the Seagate logo are registered trademarks of Seagate Technology LLC. [. . . ] D For drives using single-ended interface circuits, typical power dissipation under idle conditions is 10. 0 watts (34. 15 BTUs per hour). For drives using low voltage differential interface circuits, typical power dissipation under idle conditions is 10. 3 watts (35. 18 BTUs per hour). To obtain operating power for typical random read operations, refer to the following two I/O rate curves (see Figures 6 and 7). 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 1. 200 1. 000 0. 800 0. 600 0. 400 0 50 100 150 I/Os per Second 200 250 14. 0 12. 0 10. 0 Watts 8. 0 6. 0 4. 0 300 5V A 12V A Watts Figure 8. ST318452 and ST318432 DC current and power vs. IOPS (SE) 1. 800 1. 600 1. 400 1. 200 1. 000 0. 800 0. 600 0. 400 0 50 100 150 I/Os per Second 200 250 14. 0 12. 0 10. 0 Watts 8. 0 6. 0 4. 0 300 Amperes 5V A 12V A Watts Figure 9. ST318452 and ST318432 DC current and power vs. IOPS (LVD) Amperes Cheetah X15 36LP Product Manual, Rev. D 6. 4 Environmental limits 27 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. 7°F (14. 8°C). Maximum wet bulb temperature is 82°F (28°C). Operating With cooling designed to maintain the case temperatures, the drive meets all specifications over a 41°F to 131°F (5°C to 55°C) drive ambient temperature range with a maximum temperature gradient of 36°F (20°C) per hour. The enclosure for the drive should be designed such that the temperatures are not exceeded. Air flow may be needed to achieve these temperature values (see Section 8. 3). Operation at 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 case temperatures are not exceeded. Occasional excursions to drive ambient temperatures of 122°F (50°C) or 41°F (5°C) may occur without impact to specified MTBF. Air flow may be needed to achieve these temperatures. Continual or sustained operation at case temperatures above these values may degrade MTBF. The maximum allowable continuous or sustained HDA case temperature for the rated MTBF is 122°F (50°C) To confirm that the required cooling for the electronics and HDA is provided, place the drive in its final mechanical configuration, perform random write/read operations. After the temperatures stabilize, measure the HDA case temperature of the drive. The maximum allowable HDA case temperature is 60°C. Operation of the drive at the maximum case temperature is intended for short time periods only. [. . . ] D 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: Toll-free 1-877-271-3285 1-800-626-6637 Direct dial +405-936-1210 +1-714-641-2500 FAX +1-405-936-1683 +1-714-641-2410 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 1-800-SEAGATE +1-405-936-1687 Toll-free 1-800-468-3472 Direct dial +1-405-936-1456 FAX / Internet +1-405-936-1462 Warranty Service Call Center USA, Mexico and Latin America Canada Memofix* Adtech* Brazil MA Centro de Serviços* 1-800-636-6349 1-800-624-9857 +1-905-660-4936 +1-905-812-8099 +1-905-660-4951 www. memofix. com +1-905-812-7807 www. adtech1. com -- +55-21-2509-7267 +55-21-2507-6672 e-mail: centro. de. servicos. brasil@seagate. com 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. If your country is not listed here, dial our European call center at +31-20-316-7222 from 8:30 A. M. [. . . ]