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Each partition managed by the Bandwidth Manager must have a [Device]

section associated to it in the /usr/discreet/sw/cfg/sw_bwmgr.cfg file.

To add a new device to the Bandwidth Manager:

1 Open the /usr/discreet/sw/cfg/sw_bwmgr.cfg file in a text editor.

2 Add a new [Device] section at the end of the file, using the following

syntax:

TIP You may also copy and paste an existing [Device] section, and change

its parameters.

[Device<device_number>]

Path<path_number>=<device_mount_point>

TotalAvailableReadBandwidth=<total_read_bandwidth>

TotalAvailableWriteBandwidth=<total_write_bandwidth>

DefaultReservation=<default_reservation>

where:

■ <device_number> represents the number of the [Device] section,

starting at 0. For example:

[Device0]

■ Path specifies the partition's mount point. Since a partition can have

several paths, <path_number> represents the number of the current

path, starting at 0 for each device. For example:

Path0=/mnt/XYZ

Path1=/usr/local/ABC

■ TotalAvailableReadBandwidth represents the estimated total

reading bandwidth of the device, in megabytes per second. Based on

this value, and on the amount of active reservations for the current

partition, the Bandwidth Manager decides whether new reservation

requests are granted or rejected. For example:

TotalAvailableReadBandwidth=200

■ TotalAvailableWriteBandwidth represents the maximum

estimated writing bandwidth of the device, in megabytes per second.

If this parameter is not specified, its value defaults to the value of

TotalAvailableReadBandwidth. For example:

TotalAvailableWriteBandwidth=150

204 | Chapter 6 Advanced Configuration and Troubleshooting

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ATTO Technology 2390D Guia de preparacion Pagina 214