Page 3 - Product Manual, Volume 1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cheetah 36XL Family: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST336705LW/LC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 4 - © 2001 Seagate Technology LLC All rights reserved
© 2001 Seagate Technology LLC All rights reserved Publication number: 75789517, Rev. E October 2001 Seagate, Seagate Technology, and the Seagate logo are registered trademarks of Seagate Technology LLC. Cheetah, SeaFAX, SeaFONE, SeaBOARD, and SeaTDD are either registered trademarks or trademarks ofS...
Page 5 - Revision status summary sheet; Revision
Revision status summary sheet Notice. Product Manual 75789517 is Volume 1 of a two-volume document with the SCSI interface information inthe SCSI Interface Product Manual, Volume 2, part number 75789509. If you need the SCSI interface information, order the SCSI Interface Product Manual, Volume 2, p...
Page 7 - Contents
Cheetah 36XL Product Manual, Rev. E v Contents 1.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Applicable standards and reference documentation. . . . . . . . . . . . . . . . . . . . ....
Page 9 - vii; List of Figures
Cheetah 36XL Product Manual, Rev. E vii List of Figures Figure 1. Cheetah 36XL family drive (ST336705LC shown) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2. Cheetah 36XL family drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 11 - Scope; SCSI Interface Product Manual; references information from the documents listed in Section 2.3.
Cheetah 36XL Product Manual, Rev. E 1 1.0 Scope This manual describes Seagate Technology® LLC Cheetah 36XL™ disc drives. Cheetah 36XL drives support the Small Computer System Interface (SCSI) as described in the ANSI SCSIinterface specifications to the extent described in this manual. The SCSI Inter...
Page 13 - Applicable standards and reference documentation; Standards
Cheetah 36XL Product Manual, Rev. E 3 2.0 Applicable standards and reference documentation The drive has been developed as a system peripheral to the highest standards of design and construction. Thedrive depends upon its host equipment to provide adequate power and environment in order to achieve o...
Page 14 - SFF-8046 Specification for 80-pin connector for SCSI disk drives
4 Cheetah 36XL Product Manual, Rev. E Australian C-Tick If this model has the C-Tick Marking it complies with the Australia/New Zealand Standard AS/NZS3548 1995and meets the Electromagnetic Compatibility (EMC) Framework requirements of Australia’s Spectrum Man-agement Agency (SMA). Korean MIC If thi...
Page 15 - General description; Drive model number vs. differentiating features; Model number
Cheetah 36XL Product Manual, Rev. E 5 3.0 General description Cheetah 36XL drives combine giant magnetoresistive (GMR) heads, partial response/maximum likelihood(PRML) read channel electronics, embedded servo technology, and a wide SCSI Ultra160 interface to providehigh performance, high capacity da...
Page 16 - Cheetah 36XL family drive
6 Cheetah 36XL Product Manual, Rev. E An automatic shipping lock prevents potential damage to the heads and discs that results from movement dur-ing shipping and handling. The shipping lock automatically disengages when power is applied to the drive andthe head load process begins. Cheetah 36XL driv...
Page 17 - Standard features; The Cheetah 36XL family has the following standard features:; Media characteristics
Cheetah 36XL Product Manual, Rev. E 7 3.1 Standard features The Cheetah 36XL family has the following standard features: • Integrated Ultra160 SCSI controller• Multimode SCSI drivers and receivers—single-ended (SE) and low voltage differential (LVD)• 16 bit I/O data bus• Asynchronous and synchronous...
Page 19 - Performance characteristics; Internal drive characteristics (transparent to user); Drive level
Cheetah 36XL Product Manual, Rev. E 9 4.0 Performance characteristics 4.1 Internal drive characteristics (transparent to user) 4.2 SCSI performance characteristics (visible to user) The values given in Section 4.2.1 apply to all models of the Cheetah 36XL family unless otherwise specified.Refer to S...
Page 21 - part number 75789509), data requested by the host with a Read; part number 75789509). The drive supports operation of any; Caching write data
Cheetah 36XL Product Manual, Rev. E 11 enabled and disabled independently via the Mode Select command. However, in actual operation the prefetchfeature overlaps cache operation somewhat as is noted in Section 4.5.1 and 4.5.2. All default cache and prefetch Mode parameter values (Mode Page 08h) for s...
Page 22 - Tables 7 and 8 show Mode default settings for the drives.; Prefetch operation
12 Cheetah 36XL Product Manual, Rev. E RCD. When a write command is issued, if RCD=0, the cache is first checked to see if any logical blocks thatare to be written are already stored in the cache from a previous read or write command. If there are, therespective cache segments are cleared. The new d...
Page 25 - Reliability specifications; Error rates
Cheetah 36XL Product Manual, Rev. E 15 5.0 Reliability specifications The following reliability specifications assume correct host/drive operational interface, including all interfacetimings, power supply voltages, environmental requirements and drive mounting constraints (see Section 8.4). Note. [1...
Page 26 - SCSI Interface Product Manual,; Estimated power-on operating hours in the period =
16 Cheetah 36XL Product Manual, Rev. E error (15h) is reported with a Medium error (3h) or Hardware error (4h) reported in the Sense Key. This is anunrecoverable seek error. Unrecoverable seek errors are classified as failures for MTBF calculations. Refer tothe SCSI Interface Product Manual, part nu...
Page 27 - Hot plugging Cheetah 36XL disc drives; Case 1 - All bus devices powered off during removal or insertion
Cheetah 36XL Product Manual, Rev. E 17 5.2.6 Hot plugging Cheetah 36XL disc drives The ANSI SPI-3 (T10/1302D) document defines the physical requirements for removal and insertion of SCSIdevices on the SCSI bus. Four cases are addressed. The cases are differentiated by the state of the SCSI buswhen t...
Page 28 - Performance impact; Maximum processing delay; Reporting control
18 Cheetah 36XL Product Manual, Rev. E The process of measuring off-line attributes and saving data can be forced by the RTZ command. ForcingS.M.A.R.T. will reset the timer so that the next scheduled interrupt will be two hours. The drive can be interrogated by the host to determine the time remaini...
Page 30 - Log page entries; The Self-Test Results Value field is set to Fh; Abort
20 Cheetah 36XL Product Manual, Rev. E Short test (Function Code: 001b) The purpose of the short test is to provide a time-limited test that tests as much of the drive as possible within120 seconds. The short test does not scan the entire media surface, but does some fundamental tests andscans porti...
Page 31 - Product repair and return information
Cheetah 36XL Product Manual, Rev. E 21 Seagate repair centers may refuse receipt of components improperly packaged or obviously damaged in tran-sit. Contact your Authorized Seagate Distributor to purchase additional boxes. Seagate recommends shippingby an air-ride carrier experienced in handling com...
Page 33 - Physical/electrical specifications; AC power requirements; DC power requirements
Cheetah 36XL Product Manual, Rev. E 23 6.0 Physical/electrical specifications This section provides information relating to the physical and electrical characteristics of the Cheetah 36XLdrive. 6.1 AC power requirements None. 6.2 DC power requirements The voltage and current requirements for a singl...
Page 34 - All times and currents are typical.
24 Cheetah 36XL Product Manual, Rev. E 6.2.1 Conducted noise immunity Noise is specified as a periodic and random distribution of frequencies covering a band from DC to 10 MHz.Maximum allowed noise values given below are peak to peak measurements and apply at the drive power con-nector. 6.2.2 Power ...
Page 35 - Seconds; +12 Volt Current during spindle start – Typical Amperes
Cheetah 36XL Product Manual, Rev. E 25 Figure 3. Typical ST336705 drive +12 V current profile Figure 4. Typical ST318405 drive +12 V current profile 0.0 2 4 6 8 10 12 14 16 0.0 0.5 1.0 1.5 2.0 2.5 3.0 A Seconds AC Envelope +12 Volt Current during spindle start – Typical Amperes Nominal (average) DC ...
Page 36 - Typical ST39205 drive +12 V current profile
26 Cheetah 36XL Product Manual, Rev. E Figure 5. Typical ST39205 drive +12 V current profile Figure 6. Typical ST336705 drive +5 V current profile 0.0 2 4 6 8 10 12 14 16 0.0 0.5 1.0 1.5 2.0 2.5 3.0 A Seconds AC Envelope +12 Volt Current during spindle start – Typical Amperes Nominal (average) DC cu...
Page 38 - Power dissipation; Amperes
28 Cheetah 36XL Product Manual, Rev. E 6.3 Power dissipation ST336705 For drives using single-ended interface circuits, typical power dissipation under idle conditions is 9.6 watts(32.8 BTUs per hour). For drives using low voltage differential interface circuits, typical power dissipation under idle...
Page 41 - Location of HDA Temperature Check Point; Relative humidity; The values below assume that no condensation on the drive occurs.; Shock and vibration; Check Point
Cheetah 36XL Product Manual, Rev. E 31 The maximum allowable HDA case temperature is 140°F (60°C). Operation of the drive at the maximumcase temperature is intended for short time periods only. Continuous operation at the elevated temperatureswill reduce product reliability. Figure 12. Location of H...
Page 43 - Recommended mounting
Cheetah 36XL Product Manual, Rev. E 33 Figure 13. Recommended mounting Z Y X Z Y X
Page 44 - Vibration; b. Operating—Abnormal; Air cleanliness
34 Cheetah 36XL Product Manual, Rev. E 6.4.4.2 Vibration a. Operating—Normal The drive as installed for normal operation, shall comply with the complete specified performance whilesubjected to continuous vibration not exceeding 5-22Hz @ 0.045 inches (1.143 mm) displacement (peak to peak)22-300 Hz @ ...
Page 45 - Mechanical specifications; LW mounting configuration dimensions; Dimension Table
Cheetah 36XL Product Manual, Rev. E 35 6.5 Mechanical specifications The following nominal dimensions are exclusive of the decorative front panel accessory. However, dimensionsof the front panel are shown in figure below. Refer to Figures 14 and 15 for detailed mounting configurationdimensions. See ...
Page 46 - LC mounting configuration dimensions
36 Cheetah 36XL Product Manual, Rev. E Figure 15. LC mounting configuration dimensions A M C F [1] D E G Mounting holes are 6-32 UNC 2B, three on each side and four on the bottom. Max screw penetration into side of drive is 0.15 in. (3.81 mm). Max screw tightening torque is 6.0 in-lb (3.32 nm) with ...
Page 47 - Defect and error management; Drive internal defects; describes the Mode Select/Mode Sense Error Recovery parameters.
Cheetah 36XL Product Manual, Rev. E 37 7.0 Defect and error management The drive, as delivered, complies with this specification. The read error rate and specified storage capacity arenot dependent upon use of defect management routines by the host (initiator). Defect and error management in the SCS...
Page 48 - These values are subject to change.; SCSI systems errors; part number 75789509. Message Protocol System is described in the; SCSI Interface Product; Status returned by the drive to the Initiator is described in the; Read and write retry count maximum recovery times [1]
38 Cheetah 36XL Product Manual, Rev. E [1] These values are subject to change. Setting these retry counts to a value below the default setting could result in an increased unrecoverederror rate which may exceed the value given in this product manual. A setting of zero (0) will result in thedrive not...
Page 49 - Installation; Configure drive options; because ID 7 is the highest priority on both 8 and 16 bit data buses.; Formatting
Cheetah 36XL Product Manual, Rev. E 39 8.0 Installation Note. These drives are designed to be used only on single-ended (SE) or low voltage differential (LVD) bus-ses. Do not install these drives on a high voltage differential (HVD) bus. The first thing to do when installing a drive is to set the dr...
Page 50 - J6 jumper header; Jumper Plug; Drive; Shipped with cover installed.
40 Cheetah 36XL Product Manual, Rev. E Figure 16. J6 jumper header SCSI ID = 0 (default) Jumper Plug (enlarged toshow detail) J6 Drive Front Pin 1 Reserved A 2 A 1 A 0 [2] [1] Shipped with cover installed. Do not install jumpers; retain cover . 11 9 7 5 3 1 Drive Activity LED [4] [6] Dashed area is ...
Page 51 - Host; Remote Switches
Cheetah 36XL Product Manual, Rev. E 41 Figure 17. J5 jumper header (on LW model only) SCSI ID = 8 SCSI ID = 9 SCSI ID = 10 SCSI ID = 11 SCSI ID = 12 SCSI ID = 13 SCSI ID = 14 SCSI ID = 15 A 3 A 2 A 1 SCSI ID = 0 (default) SCSI ID = 1 SCSI ID = 2 SCSI ID = 3 SCSI ID = 4 SCSI ID = 5 SCSI ID = 6 SCSI I...
Page 52 - J2 option select header; ” means as standard OEM units are configured with a; default; Voltage supplied by the drive.
42 Cheetah 36XL Product Manual, Rev. E Figure 18. J2 option select header 8.1.1 Notes for figures 16, 17, and 18. [1] Notes explaining the functions of the various jumpers on jumper header connectors J2, J5, and J6 aregiven here and in Section 8.1.2. The term “ default ” means as standard OEM units ...
Page 53 - Jumper function description
Cheetah 36XL Product Manual, Rev. E 43 8.1.2 Function description J2jumperinstallation Jumper function description SE On Forces drive to use single-ended I/O drivers/receivers only. Off Drive can operate on the interface in low voltage differential mode or single-ended, depend-ing on the voltage sta...
Page 55 - Interface requirements; SCSI messages supported by Cheetah 36XL family drives
Cheetah 36XL Product Manual, Rev. E 45 9.0 Interface requirements This section partially describes the interface requirements as implemented on the drives. 9.1 General description This section describes in essentially general terms the interface requirements supported by the Cheetah 36XL.No attempt ...
Page 56 - SCSI interface commands supported; Commands supported by Cheetah 36XL family drive
46 Cheetah 36XL Product Manual, Rev. E 9.3 SCSI interface commands supported Table 5 following lists the SCSI interface commands that are supported by the drive. Cheetah 36XL Familydrives can be changed back and forth between SCSI-1, SCSI-2, and SCSI-3 (Ultra160) modes using theChange Definition Com...
Page 59 - Copyright Year - changes with actual year.; Inquiry Vital Product data; part number; Mode Sense data; Cheetah 36XL family drive Standard Inquiry data; VENDOR ID
Cheetah 36XL Product Manual, Rev. E 49 Table 6 lists the Standard Inquiry command data that the drive should return to the initiator per the format givenin the SCSI Interface Product Manual, part number 75789509, Inquiry command section. [ ] 1 03 means SCSI-3 (Ultra160) implemented. [ ] 2 02 means r...
Page 61 - Bytes; FF
Cheetah 36XL Product Manual, Rev. E 51 Table 7: Mode sense data, ST336705 values [1] Though byte 12, bit 7 (A0) is shown as changeable, the FSW function governed by that bit is not imple-mented by this drive. [2] Page 0, Byte 2, Bit 7 is defined as the Performance Mode (PM) bit. When set to zero (Se...
Page 67 - SCSI bus conditions and other miscellaneous features
Cheetah 36XL Product Manual, Rev. E 57 9.4 SCSI bus conditions and miscellaneous features supported Asynchronous SCSI bus conditions supported by the drive are listed below. These conditions cause the SCSIdevice to perform certain actions and can alter the SCSI bus phase sequence. Other miscellaneou...
Page 68 - Physical interface; Type of cable
58 Cheetah 36XL Product Manual, Rev. E 9.5 Synchronous data transfer 9.5.1 Synchronous data transfer periods supported Table 11 and Section 9.5.2 list Synchronous Data transfer periods supported by the drive. The data transferperiod to be used by the drive and the initiator is established by an exch...
Page 69 - Connector; Pin; PCBA
Cheetah 36XL Product Manual, Rev. E 59 Figure 19. LW model drive physical interface (68-pin J1 SCSI I/O connector) Figure 20. LC model drive physical interface (80-pin J1 SCSI I/O connector) J5 Pin 1 68 Pin SCSI I/O Connector Pin 1P J1-DC Power J6 J1 Pin 1 J1-DC Power Pin 1P2P3P4P Power +12V+12V ret...
Page 70 - SCSI interface physical description; Interface transfer rates supported; SCSI interface cable requirements; Maximum transfer rate
60 Cheetah 36XL Product Manual, Rev. E 9.6.2 SCSI interface physical description The drive models described by this product manual support the physical interface requirements of the Ultra160SCSI Parallel Interface-3 (SPI-3) standards as defined in American National Standard document X3T10/1302Drevis...
Page 71 - strongly; recommended. For Fast-80 operation, twisted pair cables are; required; Recommended mating flat cable connector part numbers are:; Mating connectors for LC model drives; Power connector 4 circuit housing
Cheetah 36XL Product Manual, Rev. E 61 To minimize discontinuances and signal reflections, cables of different impedances should not be used in thesame bus. Implementations may require trade-offs in shielding effectiveness, cable length, number of loadsand spacing, transfer rates, and cost to achiev...
Page 72 - Recommended mating 80-position PCBA mount connectors:; Right-angle to PCBA connectors; Last drive on the daisy chain.
62 Cheetah 36XL Product Manual, Rev. E Recommended mating 80-position PCBA mount connectors: Right-angle to PCBA connectors Seagate P/N: 77678559 Amp US P/N: 2-557101-1 Amp Japan P/N: 5-175474-9 For additional information call Amp FAX service at 1-800-522-6752. [1] Closed end type 68-pin connector u...
Page 73 - Nonshielded 68 pin SCSI device connector used on LW drives
Cheetah 36XL Product Manual, Rev. E 63 Figure 22. Nonshielded 68 pin SCSI device connector used on LW drives .0787 (2.00) .519 (13.18) .315 (8.00) 3.650 (92.71) .840 ± .005 (21.34) .315 ± .010 (8.00) +.001–.002 dia .083(2.1)Trifurcated Pins(4 places) .085 (2.16) x 45 ° chamfer typ .20 (5.08) typ .60...
Page 79 - The SE and differential alternatives are mutually exclusive.
Cheetah 36XL Product Manual, Rev. E 69 Notes [ ] for tables 13 through 16. [1] See Section 9.6.4.1 for detailed electrical characteristics of these signals. [2] The conductor number refers to the conductor position when using 0.025-inch (0.635 mm) centerline flatribbon cable. Other cables types may ...
Page 80 - Output characteristics; at the disc drive connector:; LVD output signals; Input characteristics; Typical SE-LVD alternative transmitter receiver circuits
70 Cheetah 36XL Product Manual, Rev. E Output characteristics Each signal (V s ) driven by LVD interface drivers shall have the following output characteristics when measured at the disc drive connector: Steady state Low level output voltage* = –.95 V = < V s = < –1.55 V (signal negation/logic...
Page 82 - Disc drive SCSI timing
72 Cheetah 36XL Product Manual, Rev. E 9.10 Disc drive SCSI timing Table 18: Disc drive SCSI timing Description Waveformsymbol [1] Waveformtable [1] Typical timing Target Select Time (no Arbitration) T00 N/A <1 µ s Target Select Time (with Arbitration) T01 4.5-1,2 1.93 µ s Target Select to Comman...
Page 85 - Internet; hours daily by e-mail for your disc or tape questions.; or; Automated Services; SeaFONE; Presales Support; Technical Support
Cheetah 36XL Product Manual, Rev. E 75 10.0 Seagate Technology support services Online Services Internet www.seagate.com for information about Seagate products and services. Worldwide suppor t is available 24 hours daily by e-mail for your disc or tape questions. Presales Support: Disc: www.seagate....
Page 86 - USA/Canada/Latin America Support Services; Tape and Server Appliance:; Warranty Service; Memofix; European Support Services; *Authorized Service Centers
76 Cheetah 36XL Product Manual, Rev. E Customer Service (CSO) Warranty Service Seagate offers worldwide customer support for Seagate drives. Seagate direct OEM, Distribution and SystemIntegrator customers should contact their Seagate service center representative for warranty information.Other custo...
Page 87 - Fax Services—All European Countries; Africa/Middle East Support Services
Cheetah 36XL Product Manual, Rev. E 77 Spain 900-98 31 24 Sweden 0 207 90 073 Switzerland 0 800-83 84 11 Turkey 00 800-31 92 91 40 United Kingdom 0 800-783 5177 Fax Services—All European Countries Presales/Technical Support/Warranty Service 31-20-653-3513 Africa/Middle East Support Services For pres...
Page 91 - Korean MIC 4; See; MTBF
Cheetah 36XL Product Manual, Rev. E 81 host system 39host system malfunction 15host/drive operational interface 15hot plug 7, 17humidity 30, 31 I I/O connector 60identified defect 37idle condition 28, 29, 30Input characteristics 70inquiry command 49inquiry vital product data 49installation 39install...
Page 92 - PCB
82 Cheetah 36XL Product Manual, Rev. E orientation 10, 31, 44out-of-plane deflection 44out-of-plane distortion 44Output characteristics 70 P package size 32package test specification 4packaged 32parity 43parity checking 43parity error 43partition or logical drive 39PCB 16, 42, 44PCBA 39, 44, 49, 58,...
Page 93 - and vibration 31; See also; cooling
Cheetah 36XL Product Manual, Rev. E 83 SCSI systems error management 38SCSI Ultra160 implementation 50SCSI Ultra160 interface 5SE 69Seagate support service 39sector 11sector interleave 9sector size 8sector sizes 10seek error 15seek positioning error 15segment 11segment number 11self-contained 11Self...
