| Kconfig (16a53ecc35f2a80dc285be2e769768847d89ca37) | Kconfig (4d2554d045497d1be3204cf67385f966f01cc9bd) |
|---|---|
| 1# 2# Block device driver configuration 3# 4 5menu "Multi-device support (RAID and LVM)" 6 7config MD 8 bool "Multiple devices driver support (RAID and LVM)" --- 76 unchanged lines hidden (view full) --- 85 86 If unsure, say Y. 87 88config MD_RAID10 89 tristate "RAID-10 (mirrored striping) mode (EXPERIMENTAL)" 90 depends on BLK_DEV_MD && EXPERIMENTAL 91 ---help--- 92 RAID-10 provides a combination of striping (RAID-0) and | 1# 2# Block device driver configuration 3# 4 5menu "Multi-device support (RAID and LVM)" 6 7config MD 8 bool "Multiple devices driver support (RAID and LVM)" --- 76 unchanged lines hidden (view full) --- 85 86 If unsure, say Y. 87 88config MD_RAID10 89 tristate "RAID-10 (mirrored striping) mode (EXPERIMENTAL)" 90 depends on BLK_DEV_MD && EXPERIMENTAL 91 ---help--- 92 RAID-10 provides a combination of striping (RAID-0) and |
| 93 mirroring (RAID-1) with easier configuration and more flexable | 93 mirroring (RAID-1) with easier configuration and more flexible |
| 94 layout. 95 Unlike RAID-0, but like RAID-1, RAID-10 requires all devices to 96 be the same size (or at least, only as much as the smallest device 97 will be used). 98 RAID-10 provides a variety of layouts that provide different levels 99 of redundancy and performance. 100 101 RAID-10 requires mdadm-1.7.0 or later, available at: --- 40 unchanged lines hidden (view full) --- 142 A RAID-5 set can be expanded by adding extra drives. This 143 requires "restriping" the array which means (almost) every 144 block must be written to a different place. 145 146 This option allows such restriping to be done while the array 147 is online. However it is still EXPERIMENTAL code. It should 148 work, but please be sure that you have backups. 149 | 94 layout. 95 Unlike RAID-0, but like RAID-1, RAID-10 requires all devices to 96 be the same size (or at least, only as much as the smallest device 97 will be used). 98 RAID-10 provides a variety of layouts that provide different levels 99 of redundancy and performance. 100 101 RAID-10 requires mdadm-1.7.0 or later, available at: --- 40 unchanged lines hidden (view full) --- 142 A RAID-5 set can be expanded by adding extra drives. This 143 requires "restriping" the array which means (almost) every 144 block must be written to a different place. 145 146 This option allows such restriping to be done while the array 147 is online. However it is still EXPERIMENTAL code. It should 148 work, but please be sure that you have backups. 149 |
| 150 You will need mdadm verion 2.4.1 or later to use this | 150 You will need mdadm version 2.4.1 or later to use this |
| 151 feature safely. During the early stage of reshape there is 152 a critical section where live data is being over-written. A 153 crash during this time needs extra care for recovery. The 154 newer mdadm takes a copy of the data in the critical section 155 and will restore it, if necessary, after a crash. 156 157 The mdadm usage is e.g. 158 mdadm --grow /dev/md1 --raid-disks=6 --- 57 unchanged lines hidden (view full) --- 216 be called dm-crypt. 217 218 If unsure, say N. 219 220config DM_SNAPSHOT 221 tristate "Snapshot target (EXPERIMENTAL)" 222 depends on BLK_DEV_DM && EXPERIMENTAL 223 ---help--- | 151 feature safely. During the early stage of reshape there is 152 a critical section where live data is being over-written. A 153 crash during this time needs extra care for recovery. The 154 newer mdadm takes a copy of the data in the critical section 155 and will restore it, if necessary, after a crash. 156 157 The mdadm usage is e.g. 158 mdadm --grow /dev/md1 --raid-disks=6 --- 57 unchanged lines hidden (view full) --- 216 be called dm-crypt. 217 218 If unsure, say N. 219 220config DM_SNAPSHOT 221 tristate "Snapshot target (EXPERIMENTAL)" 222 depends on BLK_DEV_DM && EXPERIMENTAL 223 ---help--- |
| 224 Allow volume managers to take writeable snapshots of a device. | 224 Allow volume managers to take writable snapshots of a device. |
| 225 226config DM_MIRROR 227 tristate "Mirror target (EXPERIMENTAL)" 228 depends on BLK_DEV_DM && EXPERIMENTAL 229 ---help--- 230 Allow volume managers to mirror logical volumes, also 231 needed for live data migration tools such as 'pvmove'. 232 --- 21 unchanged lines hidden --- | 225 226config DM_MIRROR 227 tristate "Mirror target (EXPERIMENTAL)" 228 depends on BLK_DEV_DM && EXPERIMENTAL 229 ---help--- 230 Allow volume managers to mirror logical volumes, also 231 needed for live data migration tools such as 'pvmove'. 232 --- 21 unchanged lines hidden --- |