Apacer Technology AP-SRFD255AXXXXR-G User Manual
RoHS Compliant
Serial ATA Flash Drive
AP-SRFD255AXXXXR-G
Serial ATA RAID Flash Drive
Specifications for SRFD
April 25, 2008
[Preliminary]
Apacer Technology Inc.
9/F, No. 100, Hsin Tai Wu Rd., Hsichih, Taipei Hsien 221, Taiwan
Tel: +886-2-2696-1666 Fax: +886-2-2696-1668
www.apacer.com
© 2008 Apacer Technology Inc. Rev 0.2 (Preliminary)
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Features:
Interface
–
Serial ATA 2.5 (Gen. 2)
–
SATA II, 3.0 Gbps
–
ATA command set compatible
Performance
–
Burst read/write: 300 MB/sec
Capacities
–
1 GB+ for each slot with Ultra DMA
mode support
Expansion
–
50-pin CF slot x 2
Mode
-
FAST(RAID-0)
-
SAFE (RAID-1)
Serial ATA Flash Drive
AP-SRFD255AXXXXR-G
OS Support
-
Microsoft Windows 2000 and XP
Auto Standby and Sleep modes
supported
Temperature ranges
–
0°C ~ 70°C for operation
–
-40°C ~ 100°C for storage
Supply voltage
–
5.0 V ± 5%
Form factor
–
2.5 inch
–
7-pin SATA male connector
–
15-pin SATA power connector
Low power consumption
–
510 mA (typical)
RoHS compliant
© 2008 Apacer Technology Inc. Rev 0.2 (Preliminary)
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Serial ATA Flash Drive
AP-SRFD255AXXXXR-G
Table of Contents
1. General Description ................................................................................................. 4
1.1 Functional Block Diagram .............................................................................................................................. 4
1.2 Appearance ..................................................................................................................................................... 5
1.3 Mode Configuration ........................................................................................................................................ 6
1.3.1 Definition ................................................................................................................................................. 6
1.4 LED Mode ...................................................................................................................................................... 7
2. Functions .................................................................................................................. 8
2.1 Overview......................................................................................................................................................... 8
2.2 Intelligent SATA RAID Processor Unit.......................................................................................................... 8
2.3 SATA .............................................................................................................................................................. 8
2.4 Architecture..................................................................................................................................................... 8
2.5 Applications .................................................................................................................................................... 8
2.6 Virtualization .................................................................................................................................................. 9
2.7 Modes.............................................................................................................................................................. 9
2.7.1 Fast (RAID-0) Mode ................................................................................................................................ 9
2.7.2 Safe (RAID-1) Mode................................................................................................................................. 9
2.8 RAID-1 Racing ............................................................................................................................................. 10
2.9 Sector Recovery and Disk Rebuild ............................................................................................................... 10
2.9.1 Sector Recovery...................................................................................................................................... 10
2.9.2 Disk Rebuild ........................................................................................................................................... 11
2.9.3 Disk Verify.............................................................................................................................................. 11
3. Pin Assignments .................................................................................................... 12
4. Environmental Specification ................................................................................. 14
5. Physical Characteristics ........................................................................................ 15
5.1 Dimension ..................................................................................................................................................... 15
6. Product Ordering Information ............................................................................... 16
6.1 Product Code Designations......................................................................................................................... 16
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© 2008 Apacer Technology Inc. Rev 0.2 (Preliminary)
Serial ATA Flash Drive
AP-SRFD255AXXXXR-G
1....
General Description
The Apacer 2.5” SRFD is the first SATA RAID Flash Drive introduced to the market. SRFD increases data
reliability and security by utilizing an SATA interface and saving data into two CompactFlash cards. It offers
capacity expansion, ultimate performance, reliability and simplicity with a variety of hardware RAID modes.
1.1 Functional Block Diagram
The Functional Block SATA RAID Flash Drive (SRFD) contains a SATA RAID Processor Unit, two CF media
slots with PATA interfaces and a SATA interface to the Host.
Figure 1-1: Functional block diagram
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© 2008 Apacer Technology Inc. Rev 0.2 (Preliminary)
Serial ATA Flash Drive
RAID Mode
Table
AP-SRFD255AXXXXR-G
1.2 Appearance
This section describes the appearance of the SRFD. It contains the LED indication, mode configurations,
expansion slots, and interfaces.
SATA connector
R/W LED (D2)
Power connector
Link LED (D1)
Configuration
CF Slot 2
© 2008 Apacer Technology Inc. Rev 0.2 (Preliminary)
5
Serial ATA Flash Drive
AP-SRFD255AXXXXR-G
1.3 Mode Configuration
Apacer SRFD supports 4 static pins that can be used to program a normal operating state. The configuration
of each node uses a combination of the Configuration pins and the Pushbutton (Reset) pin.
Table 1-1: Mode Configuration
Configuration Pin
0100 0 1 0 0 RAID 0
1100 1 1 0 0 RAID 1
1 2 3 4 Mode Example
1.3.1 Definition
The following method can be used to define the configurations.
Configuration pins set to FAST (RAID-0), SAFE (RAID-1):
A. While the system is powered-up
I. Any configuration change is ignored
II. Physical drive change rules: no drivers accepted; in SAFE (RAID-1) mode, a single driver change
will be accepted with normal driver rules (larger or equal to existing drive)
B. Upon power-up, but with no pushbutton (reset) press
I. Any configuration change is ignored
II. Physical drive change rules: no drivers accepted; in SAFE (RAID-1) mode, a single driver change
will be accepted with normal driver rules (larger or equal to existing drive which must be present)
C. Upon power-up and momentary pushbutton (reset) pressed
I. Only new configuration changes are explicitly accepted (if possible) and all new drives are explicitly
accepted if there is a new configuration
© 2008 Apacer Technology Inc. Rev 0.2 (Preliminary)
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