This document describes Astek’s a41606-ENC, 60 6A design and will remain the official reference source
for all revisions/releases of this product until rescinded by an update.
To receive product literature, visit us at http://www.astekcorp.com.
DISCLAIMER
Astek Corporation reserves the right to make changes to any products herein at any time without notice.
Astek does not assume any responsibility or liability arising out of the application or use of any product
described herein, except as expressly agreed to in writing by Astek; nor does the purchase or use of a
product from Astek convey a license under any patent rights, copyrights, trademark rights, or any other of
the intellectual property rights of Astek or third parties. Astek products are not intended for use in critical
navigation, industrial control, nuclear power or life-support appliances, devices, or systems. Use of any
Astek product in such applications without written consent of the appropriate Astek officer is prohibited.
TECHNOLOGY LICENSES
The hardware and/or software described in this document are furnished under a license and may be used
or copied only in accordance with the terms of such license.
REGULATORY COMPLIANCE
Notice: FCC and CE testing is pending. This board is for ENGINEERING USE ONLY.
Note: The A34812-ITX has been designed to comply with the limits for a Class A digital device, pursuant to
part 15 of the FCC Rules. These Limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in its installation. This equipment generates, uses, can radiate
radio frequency energy, and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. If this equipment does cause harmful interference the user
will be required to correct the interference.
The A41606-ENC 60 6A has been designed to meet the safety requirements of IEC/EN 60950-1.
7. Use Cases ................................................................................................................................................... 12
8. Support ........................................................................................................................................................ 14
Use proper ESD safety procedures whenever working with electronic
equipment or parts.
1. Introduction
The Astek A41606-ENC, D60-6A utilizes two Gen2 Serial Attached SCSI (SAS) expanders
operating at 6Gbps with a sanitization algorithm that will sanitize up to 16 Self-Encrypting Drives
(SED) that support the Cryptographic Erase Functions “Key Erase” (SBC-3, Sections 5.24/2/4)
and “Block Erase” (SBC-3, Section 5.24.2.3).
The A41606-ENC, D60-6A provide a dual ported storage enclosure based on Astek’s innovative
SAS expander module, combined with a precision machined chassis, and a unique 'sled-less'
disk mounting mechanism, these enclosures can hold up to sixteen 2.5” hard disks.
The A41606-ENC provides two external SAS x4 wide-port input/output connections per expander,
with each wide port supporting up to 24Gbps of I/O. Each port can be connected either to a host
or another A41606-ENC, allowing system designers to cascade multiple enclosures to further
increase the total available storage.
2. Hardware Installation
Step 1: Secure chassis in rack mount or free standing on a flat level surface so that it
Writes 512 Bytes of an A5A5 repeating pattern to
LUN 0 of a specified drive
Sanitize Block
Erase
SSpBlockErase [drive-sasAddrHigh(H)
drive-sasAddrLow(H)
timeOutInSec(d)]
Block erase an entire drive
Reads LBA(0)
SSpBlockRead [drive-sasAddrHigh(H)
drive-sasAddrLow(H)
timeOutInSec(d)]
Reads 512 Bytes from LUN 0 of a specified drive
Request Sense
SSpRequestSense [drive-sasAddrHigh(H)
drive-sasAddrLow(H)
timeOutInSec(d)]
Issues the SCSI Request Sense Command
3. Cryptographic Erase
The Astek A41606-ENC, D60-6A has a sanitization algorithm that will sanitize up to 16 SelfEncrypting Drives (SED) that support the Cryptographic Erase Functions “Key Erase”.
To erase data from drives connect to the CLI using the serial port with connection speed of 38400
and parameters 8-N-1. A password is needed; the default is “expander”
The “santest” CLI command starts the erase process. It changes the encryption key stored in the
crypto drive, thus effectively performing an instant erase then does a block erase of the drive.
Cryptographic Erase “Key Erase” Command Line Interface (CLI) commands.
Do not operate the A41606-ENC, 60-6A continuously without sufficient
cooling. The default configuration does NOT support auto-shutdown due to
exceeding thermal limits, and as such, damage many occur to your board is
operated continuously without airflow.
The A41606-ENC, 60-6A enclosure provides four fans to cool the board and chassis elements.
By default all fan outputs will be configured for full speed operation at start.