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Installation Guide - Iomega

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32 TapeWare ® <strong>Installation</strong> <strong>Guide</strong><br />

To change the device buffer size<br />

1. Locate the following line in the Device performance tuning section of the<br />

TapeWare.ini file:<br />

;devBufferSize=n<br />

2. Enter one of the following in place of n (in bytes):<br />

32768 (32MB)<br />

16384 (16MB)<br />

8192 (8MB)<br />

4096 (4MB)<br />

2048 (2MB)<br />

1024 (1MB)<br />

3. Erase the semi-colon at the start of the line, as follows:<br />

devBufferSize=n<br />

Note If you enter a different setting, TapeWare sets the device buffer size to the next<br />

lower of these options. For example, if you enter 32000, TapeWare sets the device buffer<br />

size to 16384 (16MB).<br />

Note Setting the device buffer size above 32MB per device will not improve<br />

performance.<br />

Multiple SCSI Buses with Autoloaders<br />

If your autoloader and its devices are connected to different SCSI buses, the device driver<br />

may become confused as to which device is contained within the autoloader. If the<br />

autoloader and its devices use either the SCSI-2 serial number or the new SCSI-3<br />

identifier protocol, all devices will be correctly identified. However, if the autoloader<br />

supports neither the SCSI-2 serial number nor the SCSI-3 identifier protocol, you must<br />

connect the autoloader and its devices to the same SCSI bus. You can also configure the<br />

drivers manually as follows:<br />

1. Log in to TapeWare.<br />

2. Access the Device tab to get the name of the autoloader and its devices. For example:<br />

Autoloader: Ldr-2.0.3.0: ADIC Scalar<br />

Device 1: Dev-3.0.3.0: DLT 4000<br />

Device 2: Dev-4.0.3.0: DLT 4000<br />

3. Exit TapeWare.

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