Seagate ST11200N Technical Information PDF herunterladen (Seite 33)

Configuring Tape Drives

Solaris Patches

Some drives (for example, Quantum SDLT600) require Solaris patches for support. In

these cases VERITAS lists the required patches for the drive on the VERITAS support web

site (http://www.support.veritas.com). Device and library compatibility information for

a number of vendors and products is available (see the NetBackup Product >

Compatibility area of the site).

Configuring Non-QIC Tape Drives

The terms variable mode or fixed mode refer to the behavior of reads and writes and the way

the kernel packs physical tape records into logical tape records for an application.

Variable-mode devices allow more flexibility in reading previously written tapes. Many

tape devices can be accessed in either mode. NetBackup assumes variable mode for

non-QIC drives.

Caution As shown by the st.conf entries, you must configure non-QIC tape drives as

variable-mode devices, if they are to be used by Media Manager. Otherwise

NetBackup is able to write data, but may not be able to read it correctly. During

a read, you may see a “not in tar format” error.

Editing the st.conf File

Review the following important points when editing this file:

◆ Each valid drive entry in the st.conf file consists of two sections (the drive-entry-list

and the list of data-property-names). The last field of each entry in the drive-entry-list

is a link (data-property-name) to the corresponding entry in the list of

data-property-names.

◆ Each valid entry in the drive-entry-list requires a comma (,) at the end of the line,

unless it is the last uncommented drive in the list. In this case, the line must end with

a semi-colon (;).

Each valid entry in the list of data-property-names contains a semi-colon (;) at the end

of the line.

◆ Uppercase and lowercase are significant. For example, using Hp instead of HP is not

valid.

◆ Spaces are significant within quoted strings.

Note that the vendor name of the vendor/product field must always be the first eight

characters of the field. The following example entry shows the vendor/product field

for an HP C1533A drive. The correct vendor name is HP + six spaces.

"HP C1533A",

Chapter 2, Sun Solaris 19

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Seagate ST11200N Technical Information Seite 33