| Kconfig (55fa518867978e1f5fd8353098f80d125ac734d7) | Kconfig (f701d589aa34d7531183c9ac6f7713ba14212b02) |
|---|---|
| 1# 2# Block device driver configuration 3# 4 5menuconfig MD 6 bool "Multiple devices driver support (RAID and LVM)" 7 depends on BLOCK 8 help --- 107 unchanged lines hidden (view full) --- 116 117 ftp://ftp.kernel.org/pub/linux/utils/raid/mdadm/ 118 119 If unsure, say Y. 120 121config MD_RAID456 122 tristate "RAID-4/RAID-5/RAID-6 mode" 123 depends on BLK_DEV_MD | 1# 2# Block device driver configuration 3# 4 5menuconfig MD 6 bool "Multiple devices driver support (RAID and LVM)" 7 depends on BLOCK 8 help --- 107 unchanged lines hidden (view full) --- 116 117 ftp://ftp.kernel.org/pub/linux/utils/raid/mdadm/ 118 119 If unsure, say Y. 120 121config MD_RAID456 122 tristate "RAID-4/RAID-5/RAID-6 mode" 123 depends on BLK_DEV_MD |
| 124 select MD_RAID6_PQ |
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| 124 select ASYNC_MEMCPY 125 select ASYNC_XOR 126 ---help--- 127 A RAID-5 set of N drives with a capacity of C MB per drive provides 128 the capacity of C * (N - 1) MB, and protects against a failure 129 of a single drive. For a given sector (row) number, (N - 1) drives 130 contain data sectors, and one drive contains the parity protection. 131 For a RAID-4 set, the parity blocks are present on a single drive, --- 43 unchanged lines hidden (view full) --- 175 to grow '/dev/md1' to having 6 disks. 176 177 Note: The array can only be expanded, not contracted. 178 There should be enough spares already present to make the new 179 array workable. 180 181 If unsure, say Y. 182 | 125 select ASYNC_MEMCPY 126 select ASYNC_XOR 127 ---help--- 128 A RAID-5 set of N drives with a capacity of C MB per drive provides 129 the capacity of C * (N - 1) MB, and protects against a failure 130 of a single drive. For a given sector (row) number, (N - 1) drives 131 contain data sectors, and one drive contains the parity protection. 132 For a RAID-4 set, the parity blocks are present on a single drive, --- 43 unchanged lines hidden (view full) --- 176 to grow '/dev/md1' to having 6 disks. 177 178 Note: The array can only be expanded, not contracted. 179 There should be enough spares already present to make the new 180 array workable. 181 182 If unsure, say Y. 183 |
| 184config MD_RAID6_PQ 185 tristate 186 |
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| 183config MD_MULTIPATH 184 tristate "Multipath I/O support" 185 depends on BLK_DEV_MD 186 help 187 Multipath-IO is the ability of certain devices to address the same 188 physical disk over multiple 'IO paths'. The code ensures that such 189 paths can be defined and handled at runtime, and ensures that a 190 transparent failover to the backup path(s) happens if a IO errors --- 102 unchanged lines hidden --- | 187config MD_MULTIPATH 188 tristate "Multipath I/O support" 189 depends on BLK_DEV_MD 190 help 191 Multipath-IO is the ability of certain devices to address the same 192 physical disk over multiple 'IO paths'. The code ensures that such 193 paths can be defined and handled at runtime, and ensures that a 194 transparent failover to the backup path(s) happens if a IO errors --- 102 unchanged lines hidden --- |