Acer HDS WMS100 Reference Manual
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Acer | HDS WMS100™ User and Reference Guide 59
4.5.1 WMS100 Rack-Mount Model
Each RKXS unit contains the physical disk drives, including the disk array groups and the
dynamic spare disk drives. Each rack frame has dual power plugs, which should be attached
to two different power sources or power panels.
The WMS100 can be configured with 1 RKXS and up to 6 RKAJAT units for a total of 105 GB
disk drives at a maximum of 38.5 Tbytes RAID5(14D+1P) (using the 393.4 G disk drive).
Table 4.3 Basic Specifications of Rack-Mount Model
Rack-Mount model Item
Model
RKXS RKAJAT RKNAS
Configuration 1 RKXS 1RKAJAT 1 RKNAS Configuratio
n
System appearance
Disk drive size (W×D×H)
(mm)
101.6×146.1×25.4
−
Data capacity (G byte) (Note
1)
245.7/393.4 −
Rotational speed (min
-1
) 7,200 (
Disk drive
used
Maximum mountable
quantity(unit)
15 (
Interface type 2 G bps Fibre Channel
Optical (Non-OFC) (Note 3)
( 1Gbps Ethernet
Data transfer speed
(i.e. maximum speed for
transfer to host)
200 M bytes/s
(Fibre Channel) (Note 4)
( 100 Mbytes/s
(Ethernet)
Single
controller
Fibre Channel: 2 (Note 2) − Number of
Host
Connectors
Dual
controller
Fibre Channel: 4 (Note 2) − 8 (4 for 1RKNAS)
Host
interface
Transferred block size (bytes) 512 −
Note 1: This value of storage capacity is calculated as 1 Gbyte = 1,000,000,000 bytes. (This definition is different from 1 Kbyte =
1,024 bytes.)
Note 2: When FC interface board is not added, one port configures one Mini-HUB, and extends to two host connectors. When
FC interface board is added, control unit implements two ports and two host connectors. One port configures FC interface
independent of another port, and implements one host connector.
Note 3: When the FC interface board is added, the interface type supports 4 Gbps Fibre Channel Optical (Non-OFC).
Note 4: When the FC interface board is added, a maximum data transfer rate is 400
M bytes/s (Fibre Channel) depending on the host I/O condition.
Note 5: For additional information about the global rack-mount model, refer to the Acer | HDS Global 19-Inch Rack Reference
Guide.