D-Link xStack Storage DSN-3200 Release Notes page 4

xStack Storage DSN-3200 & DSN-3400
V1.4.0 build 27 Release Notes
2 Product Feature Status
2.1 DSN-3200/3400 Features
The following features are the new features included in the V1.4.0 release:
2.1.1 Ability to have multiple IP Addresses in the same subnet
The previous DSN-3200/3400 firmware required that each of the IP addresses assigned to any of the data
path LAGs and the out-of-band management port all have unique subnets.
This release removes that restriction allowing multiple IP addresses within the same subnet to be
configured. The data ports and the out-of-band port may be configured to be within the same subnet.
Therefore, on a DSN-3200 8-port product, up to 9 IP addresses may be configured all within the same
subnet.
2.1.2 Each subnet will contain a default route
The previous DSN-3200/3400 firmware only supported 1 default IP route for all of the subnets configured.
This default route is configured while configuring the out-of-band management port.
The 1.4.0 release supports a default route for each unique subnet configured within the DSN-3200/3400.
2.1.3 Management Console enhancements
The configuration of a network portal in the management console has been enhanced to allow the
specification of a default route in addition to the IP address and netmask.
2.1.4 Read-Only support for each volume
The release allows the user to configure each volume to be read-only. When a volume is configured in
read-only mode, the SCSI layer will set the "WP" bit in the DEVICE-SPECIFIC PARAMETER field in the
mode parameter header.
When the volume is configured in read-only mode, multiple servers that contain a filesystem that supports
read-only will have the capability of mounting the volume. This capability eliminates the need for a SAN
filesystem for the read-only configuration.
2.1.5 NO-OP the SCSI Sync Cache command with Apple
The release allows the user to configure each volume to no-op the SCSI Sync Cache command. This
feature is to support video applications from an Apple Macintosh. When using an Apple, the file-system by
default enables a journaling feature. This journaling feature regularly issues the sync cache command after
updating its journal. When the system has cached a large amount of write data, the sync cache command
will take a considerable amount of time to complete. This causes video applications to drop frames because
of the increased latency of I/O commands.
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D-Link Systems, Inc. Page
February 22, 2007