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Chapter 1 – Introduction
Key Features
ACS-9910 features the following:
Support for RAID Levels 0, 1, 0+1, 3 and 5
Independence from host system
Independence from operating system
Intel i80303 64-bit RISC High performance processor
Supports Dual Ultra160 SCSI channel
Superior Accusys Array Management Firmware
Flexible cache size of up to 512MB
Supports up to 16 logical units
Supports on-line capacity expansion.
Automatic Hot Swap, Hot Spare and Drive Rebuild Support
Bad sector reassignment
Programmable FAX event notification
Remote monitoring through terminal
UPS support through standard UPS interface
Supporting SCSI/Fibre interface
Flexible array management
Hard drive hot swapping
Automatic global hot spare
Expandability enhanced by an optional daughter-board
Automatic drive rebuild
User-friendly LCD control panel
Vt-100 terminal emulation
Instant remote notification
Three Operating modes
ACS-9910 operates in three modes: Self-Diagnostic Mode, Configuration Mode and
Operation Mode.
Self-Diagnostic Mode
To ensure flawless operation, ACS-9910 has a built-in self-diagnostic utility. Self-diagnostic
Mode is entered automatically upon power up, or after the ACS-9910 has been reset. In this
mode, all components are tested, and any potential problems are reported. Once the tests are
complete, ACS-9910 switches automatically to Operation Mode.
Self-Diagnostic Mode runs three major tests. The first diagnostic test covers the CPU and
supporting core logic chips, the internal bus, memory, SCSI controller, enhanced IDE
controllers, and RS-232 controllers. The second diagnostic test checks for the presence of
disks on each individual disk channel and the functionality of each disk found. The final
diagnostic test checks RAID functionality.
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