# Block device driver configuration
#
-if BLOCK
-
-menu "Multi-device support (RAID and LVM)"
-
-config MD
+menuconfig MD
bool "Multiple devices driver support (RAID and LVM)"
+ depends on BLOCK
help
Support multiple physical spindles through a single logical device.
Required for RAID and logical volume management.
+if MD
+
config BLK_DEV_MD
tristate "RAID support"
- depends on MD
---help---
This driver lets you combine several hard disk partitions into one
logical block device. This can be used to simply append one
config MD_RAID456
tristate "RAID-4/RAID-5/RAID-6 mode"
depends on BLK_DEV_MD
+ select ASYNC_MEMCPY
+ select ASYNC_XOR
---help---
A RAID-5 set of N drives with a capacity of C MB per drive provides
the capacity of C * (N - 1) MB, and protects against a failure
config BLK_DEV_DM
tristate "Device mapper support"
- depends on MD
---help---
Device-mapper is a low level volume manager. It works by allowing
people to specify mappings for ranges of logical sectors. Various
---help---
Multipath support for EMC CX/AX series hardware.
-endmenu
+config DM_MULTIPATH_RDAC
+ tristate "LSI/Engenio RDAC multipath support (EXPERIMENTAL)"
+ depends on DM_MULTIPATH && BLK_DEV_DM && EXPERIMENTAL
+ ---help---
+ Multipath support for LSI/Engenio RDAC.
+
+config DM_DELAY
+ tristate "I/O delaying target (EXPERIMENTAL)"
+ depends on BLK_DEV_DM && EXPERIMENTAL
+ ---help---
+ A target that delays reads and/or writes and can send
+ them to different devices. Useful for testing.
+
+ If unsure, say N.
-endif
+endif # MD