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Summary of Contents for Memtech SC35 Mastodon
- Page 1 SC35 Mastodon 3.5” Solid State SCSI Drive User Guide 153205-001 Revision 4.8 July 30, 2002 Memtech SSD Corporation 7628 Las Positas Road Livermore, CA 94550 (800)445-5511 www.memtech.com...
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Page 2: Table Of Contents
Error Blink Codes - Warning Blink Codes – Red LED on steady at power-up- Unit does not respond to SCSI commands - APPENDIX Contact Information SCSI specification information Limited Lifetime Warranty SC35 User Guide Ver 4.8 August 30, 2002 Page 2 of 25... -
Page 3: Highlights
NO installable device drivers 2. INTRODUCTION The SC35 series is a line of 100% compatible SCSI-II solid state drives in a 3.5-inch half-height format. It is completely solid state, with no moving parts. This accounts for the unit’s exceptional ruggedness and wide operating temperature range. -
Page 4: General Description
3.1 SCSI Interface An intelligent SCSI controller from NCR, the 53C90A, handles the SCSI interface for the SC35. The 53C90A is SCSI-I and SCSI II compliant, and automates much of the interface overhead. It has a 16 byte FIFO, a DMA interface, and numerous command and control registers. - Page 5 3.2 SCSI Connector The SC35 uses a 50-pin right angle 0.1 inch center connector mounted on the PCB to create both a power and signal connection to the host. Maximum cable length is 6 meters. The diagram below depicts connector orientation and location.
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Page 6: Scsi Commands
The TEST UNIT READY command provides a means to check if the logical unit is ready. This is not a request for a self-test. If the logical unit would accept an SC35 User Guide Ver 4.8 August 30, 2002 Page 6 of 25... - Page 7 Rezero Unit CDB The REZERO UNIT command requests that the target set the logical unit to a specific state. This is implemented on the SC35 as a NOP command and has no effect other than to verify the CDB. SC35 User Guide Ver 4.8...
- Page 8 The REQUEST SENSE command requests that the SC35 transfer sense data to the initiator. If the SC35 has no sense data available to return, it will return a sense key of NO SENSE and an additional sense code of NO ADDITIONAL SENSE INFORMATION.
- Page 9 Sense data format SC35 User Guide Ver 4.8 August 30, 2002 Page 9 of 25...
- Page 10 The existing defect list is discarded by the SC35 and a new primary defect list is constructed. A CmpLst bit of zero indicates that the current defect list should be maintained. As a result a new primary is constructed that contains the existing list and any new defects the SC35 may add during the format operation.
- Page 11 3.3.5 Read (6) Command – 08h The READ (6) command requests that the SC35 transfer data to the initiator. The most recent data value written in the addressed logical block shall be returned. Read (6) CDB The logical block address field specifies the logical block at which the read operation shall begin.
- Page 12 If any optional fields in the CDB are set that the SC35 does not support, it will return a CHECK CONDITION status with the sense key set to ILLEGAL REQUEST and an additional sense code of INVALID FIELD IN CDB.
- Page 13 Standard Inquiry Data Format Please refer to the SCSI specification for further details on the vital product data pages and formats. SC35 User Guide Ver 4.8 August 30, 2002 Page 13 of 25...
- Page 14 The RELEASE command is used to release a previously reserved logical unit, or, if the extent release option is implemented, to release previously reserved extents within a logical unit. Release CDB SC35 User Guide Ver 4.8 August 30, 2002 Page 14 of 25...
- Page 15 The page code specifies which mode page to return. 3.3.11 Send Diagnostics – 1Dh The SEND DIAGNOSTIC command requests that the SC35 perform diagnostic operations on itself. The only mandatory implementation of this command is the self-test feature with the parameter list length of zero.
- Page 16 The READ (10) command requests that the target transfer data to the initiator. The most recent data value written in the addressed logical block is returned. Read (10) CDB SC35 User Guide Ver 4.8 August 30, 2002 Page 16 of 25...
- Page 17 3.3.14 Extended Write (10) The WRITE (10) command requests that the SC35 write the data transferred by the initiator to the medium. Write (10) CDB SC35 User Guide Ver 4.8 August 30, 2002 Page 17 of 25...
- Page 18 The erase command has been implemented as a security erase mechanism on the SC35. When executed with ERA set, a 768 Mbyte drive can be wiped clean in under 10 seconds. All storage locations on the drive are erased, including both user and system (protected) data areas.
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Page 19: General Specifications
18.5 ounces (525 grams) Power Requirements Vcc Supply +5.00 volts +/- 5% Vdd Supply Not Used Power Idle 0.50 watts Power Active 0.90 watts Power Max 1.10 watts SC35 User Guide Ver 4.8 August 30, 2002 Page 19 of 25... -
Page 20: Installation
5.2.5 If a SCSI initiator is not already installed in the system or on the motherboard, then install that card. 5.2.6 Install the SC35 into a standard 3 1/2" drive bay, or using adapter hardware, place the unit into a 5 1/4" drive bay. Any mounting orientation is acceptable. -
Page 21: Power And Cable Attachments
Back view of SC35 5.4 Software Installation Procedure With the SC35 installed, the user can now treat the device as a standard Direct Access SCSI device. Standard implementation of the SC35 will include building a partition table with FDISK and high-level formatting. Low level formatting is not required, nor recommended. -
Page 22: Jumper Configuration
The following diagram shows the unit as viewed from the bottom, and shows the relative location of the switches and jumpers as described in the text below. Figure 2: Bottom view of SC35 SC35 User Guide Ver 4.8 August 30, 2002... -
Page 23: Scsi Id Selection
6.2 SCSI ID Selection 6.2.1 The SC35 can use any of the 8 SCSI IDs available on the SCSI bus, although the highest priority device, SCSI ID 7, is usually reserved for the initiator. Switch selection for each SCSI ID is shown below. For a setting to be off, BOTH the switch and jumper must be off. -
Page 24: Trouble Shooting Guide
If the red LED issues a repeating blink code (accompanied by the drive not responding to SCSI commands), this indicates a hard error condition as listed in the table below. Contact the Memtech factory for repair service. Number of Blinks... -
Page 25: Appendix
In no event shall Memtech be liable for any lost profits, lost savings or other incidental or consequential damages arising out of the use of, or inability to use, this product.
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