User manual MAXTOR ST336753 VOLUME 1

[. . . ] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cheetah 15K. 3 SCSI Disc Drive: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST373453LW/LC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST336753LW/LC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST318453LW/LC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product Manual, Volume 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cheetah 15K. 3 SCSI Disc Drive: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST373453LW/LC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST336753LW/LC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST318453LW/LC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Product Manual, Volume 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ©2001-2003 Seagate Technology LLC All rights reserved Publication number: 100148123, Rev. G March 2003 Seagate, Seagate Technology, and the Seagate logo are registered trademarks or trademarks of Seagate Technology LLC. Cheetah, SeaFAX, SeaFONE, SeaBOARD, and SeaTDD are registered trademarks or trademarks of Seagate Technology LLC. Other product names are registered trademarks or trademarks of their owners. [. . . ] 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. ST336753LC/LW DC CURRENT/POWER vs THROUGHPUT (SE) Random 8 Block Reads 1 . 800 1 8. 00 5Vo lt A 1 Vo lt A 2 Watts 1 . 600 1 6. 00 1 . 400 1 4. 00 Power (watts) Amperes 1 . 200 1 2. 00 1 . 000 1 0. 00 0. 800 8. 00 0. 600 6. 00 0. 400 0. 0 50. 0 1 00. 0 1 50. 0 200. 0 250. 0 300. 0 4. 00 350. 0 I/Os per Second Figure 10. ST336753 DC current and power vs. IOPS (SE) 1 . 800 ST336753LC/LW DC CURRENT/POWER vs THROUGHPUT (LVD) Random 8 Block Reads 1 8. 00 5Vo lt A 1 Vo lt A 2 Watts 1 . 600 1 6. 00 1 . 400 1 4. 00 Power (watts) Amperes 1 . 200 1 2. 00 1 . 000 1 0. 00 0. 800 8. 00 0. 600 6. 00 0. 400 0. 0 50. 0 1 00. 0 1 50. 0 200. 0 250. 0 300. 0 4. 00 350. 0 I/Os per Second Figure 11. ST336753 DC current and power vs. IOPS (LVD) 28 ST318453 Cheetah 15K. 3 SCSI Product Manual, Rev. G For drives using single-ended interface circuits, typical power dissipation under idle conditions is 9. 1 watts (31. 1 BTUs per hour). For drives using low voltage differential interface circuits, typical power dissipation under idle conditions is 9. 3 watts (31. 7 BTUs per hour). To obtain operating power for typical random read operations, refer to the following two I/O rate curves (see Figures 12 and 13). 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. ST318453LC DC CURRENT/POWER vs THROUGHPUT (SE) Random 8 Block Reads 1 . 800 1 8. 00 5Vo lt A 1 Vo lt A 2 Watts 1 . 600 1 6. 00 1 . 400 1 4. 00 Power (watts) Amperes 1 . 200 1 2. 00 1 . 000 1 0. 00 0. 800 8. 00 0. 600 6. 00 0. 400 0. 0 50. 0 1 00. 0 1 50. 0 200. 0 250. 0 300. 0 4. 00 350. 0 I/Os per Second Figure 12. ST318453 DC current and power vs. IOPS (SE) 1 . 800 ST318453LC DC CURRENT/POWER vs THROUGHPUT (LVD) Random 8 Block Reads 1 8. 00 5Vo lt A 1 Vo lt A 2 Watts 1 . 600 1 6. 00 1 . 400 1 4. 00 Power (watts) Amperes 1 . 200 1 2. 00 1 . 000 1 0. 00 0. 800 8. 00 0. 600 6. 00 0. 400 0. 0 50. 0 1 00. 0 1 50. 0 200. 0 250. 0 300. 0 4. 00 350. 0 I/Os per Second Figure 13. ST318453 DC current and power vs. IOPS (LVD) Cheetah 15K. 3 SCSI Product Manual, Rev. G 6. 4 Environmental limits 29 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. [. . . ] Seagate distributors, OEMs and other direct customers should contact their Seagate service center representative for warranty-related issues. Resellers or end users of drive products should contact their place of purchase or one of the Seagate warranty service centers for assistance. Have your drive's "ST" model number and serial number available. Authorized Service Centers In some countries 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 Toll-free 1-800-SEAGATE 1-800-SEAGATE Toll-free 1-800-468-3472 Direct dial +405-936-1210 +1-714-641-2500 Direct dial +405-936-1210 +1-714-641-2500 Direct dial +1-405-936-1456 FAX +1-405-936-1683 +1-714-641-2410 FAX +1-405-936-1683 +1-714-641-2410 FAX / Internet +1-405-936-1462 Technical Support Call Center Disc: Tape: Warranty Service Call Center USA, Mexico and Latin America Canada Memofix* 1-800-636-6349 1-800-624-9857 +1-905-660-4936 +1-905-890-3099 Adtech* Brazil MA Centro de Serviços* +1-905-660-4951 www. memofix. com +1-905-890-3977 www. adtech1. com -- +55-21-2509-7267 +55-21-2507-6672 e-mail: centro. de. servicos. brasil@seagate. com * Authorized Service Centers For product-specific phone number Cheetah 15K. 3 SCSI Product Manual, Rev. G 75 European Support Services For European presales, technical support, and warranty service, dial the toll-free number for your specific country. [. . . ]