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CONFIG_SCSI_MULTI_LUN: Probe all LUNs on each SCSI device

General informations

The Linux kernel configuration item CONFIG_SCSI_MULTI_LUN has multiple definitions:

Probe all LUNs on each SCSI device found in arch/um/Kconfig.scsi

The configuration item CONFIG_SCSI_MULTI_LUN:

• prompt: Probe all LUNs on each SCSI device
• type: bool
• depends on: CONFIG_SCSI
• defined in arch/um/Kconfig.scsi
• found in Linux kernels: 2.6.14–2.6.21

Help text

(none)

Probe all LUNs on each SCSI device found in arch/um/Kconfig_scsi

The configuration item CONFIG_SCSI_MULTI_LUN:

• prompt: Probe all LUNs on each SCSI device
• type: bool
• depends on: CONFIG_SCSI
• defined in arch/um/Kconfig_scsi
• found in Linux kernels: 2.6.0–2.6.13

Help text

(none)

Probe all LUNs on each SCSI device found in drivers/scsi/Kconfig

The configuration item CONFIG_SCSI_MULTI_LUN:

• prompt: Probe all LUNs on each SCSI device
• type: bool
• depends on: CONFIG_SCSI
• defined in drivers/scsi/Kconfig
• found in Linux kernels: 2.6.0–2.6.39, 3.0–3.9, 3.10-rc+HEAD

Help text

Some devices support more than one LUN (Logical Unit Number) in order to allow access to several media, e.g. CD jukebox, USB card reader, mobile phone in mass storage mode. This option forces the kernel to probe for all LUNs by default. This setting can be overriden by max_luns boot/module parameter. Note that this option does not affect devices conforming to SCSI-3 or higher as they can explicitely report their number of LUNs. It is safe to say Y here unless you have one of those rare devices which reacts in an unexpected way when probed for multiple LUNs.

Hardware

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Sources

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The data is retrived from:

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• Linux Kernel Driver DataBase (LKDDb)

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