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DSN-1100 Hardware Reference Guide 31
A.3 Upgrading or Replacing Memory
Your DSN-1100 storage system supports up to 1 GB of buffer(cache) memory and 512 MB of
system memory using a total of two Dual In-line Memory Module (DIMM) sockets on the DSN-
1100 storage system Controller:

One DIMM sockets (J14) is for buffer (cache) memory.

One DIMM socket (J15) is for system memory.
System Memory: The xStack Storage controller can address up to 512MB of system memory.
Your controller comes standard with 256MB (1 x 256MB module). Please see Figures A-10 and
A-12 for the system memory location.
Buffer (Cache) Memory: The xStack Storage controller can address up to 1GB of buffer
memory, and comes standard with 256MB (1 x 256MB modules) installed. This should work
well for most applications. However, several applications (such as video streaming) of the
product could benefit from increased cache memory. Please see Figures A-10 and A-11 for
buffer memory location. Note on Memory: Table A-1 lists the specifications for DIMMs
supported by the xStack Storage Array. These memory module specifications are crucial to
the operation of your SAN array. Please visit the
support.dlink.com website for tested
memory modules.
Table A-2 shows the possible memory configurations for your xStack Storage controller.
Figure A-10. Looking down at the controller board.
Rear of
Chassis
Buffer (Cache)
Memory
System
Memory