Technical data

30 Chapter 2 Planning for Installation and Operation
2.3.4 Internal Logic Specifications
The following table lists the internal logic specifications of the AMS200.
Table 2.6 Internal Logic Specification of AMS200 Rack-Mount Model
Item Specification
RKS RKNAS
Internal logic Control CPU Power PC7447A (500 MHz) Intel LV-Xeon 2.8GHz
specification Control memory Flash memory: 2 M bytes
L2 cache memory: 512 k bytes
SRAM: 64 M bytes
Bios: 1 M bytes
L2 cache memory: 1M bytes
Data assurance method Data bus: Through-parity
Cache memory: ECC (1 bit for
correction, 2 bits for detection)
Disk drive: Data assurance code
Data bus: Through-parity
Cache memory: ECC (1 bit for
correction, 2 bits for detection)
Notes:
 RKAJ/RKAJAT is not included in these specifications.
 For information about the global rack-mount model, refer to the Acer | HDS AMS200 and
WMS100 Global 19-Inch Rack Reference Guide.
2.3.5 Cable Function
The following table lists the principal functions of the AMS200 and RKNAS cables. Fibre
channel cables are available from Acer | HDS.
Table 2.7 Principal Functions of AMS200 Cables
Cable Principal Use
Fibre Channel cable Connect with a host or HBA/Switch.
LAN cable (Cross/Straight) Connect the PCs for user, monitoring and maintenance.
Connect with a host or a HAB for Ethernet. (When iSCSI interface and
RKNAS are connected)
Connect between RKS and RKNAS for maintenance management.
ENC (ENCLOSURE) cable Connect between the subsystems with Fibre Channel (FC_AL).
NAS interface cable Connect between RKS and RKNAS for NAS control. (When RKNAS is
connected)