{"id":19238,"date":"2016-07-24T06:07:35","date_gmt":"2016-07-23T22:07:35","guid":{"rendered":"https:\/\/2blog.ilc.edu.tw\/25793\/2016\/07\/24\/softraid-%e7%9a%84%e6%95%85%e9%9a%9c%e8%88%87%e5%be%a9%e5%8e%9f\/"},"modified":"2021-03-18T17:24:46","modified_gmt":"2021-03-18T09:24:46","slug":"softraid-%e7%9a%84%e6%95%85%e9%9a%9c%e8%88%87%e5%be%a9%e5%8e%9f","status":"publish","type":"post","link":"https:\/\/2blog.ilc.edu.tw\/25793\/2016\/07\/24\/softraid-%e7%9a%84%e6%95%85%e9%9a%9c%e8%88%87%e5%be%a9%e5%8e%9f\/","title":{"rendered":"SoftRAID \u7684\u6545\u969c\u8207\u5fa9\u539f"},"content":{"rendered":"

\u53c3\u8003\u7db2\u9801\uff1a
\u78c1\u789f\u7ba1\u7406\uff1aSoftRAID \u8207 LVM \u7d9c\u5408\u5be6\u505a\u61c9\u7528\uff08\u4e0a\uff09<\/a><\/p>\n

\u4ee5 Debian Linux RAID 6 \u70ba\u4f8b
1. \u539f\u672c\u7684 RAID \u72c0\u614b
# mdadm -D \/dev\/md0<\/span>
\/dev\/md0:<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Version : 1.2<\/span>
\u00a0 Creation Time : Tue Jun 28 10:25:06 2016<\/span>
\u00a0\u00a0\u00a0\u00a0 Raid Level : raid6<\/span>
\u00a0\u00a0\u00a0\u00a0 Array Size : 41908224 (39.97 GiB 42.91 GB)<\/span>
\u00a0 Used Dev Size : 20954112 (19.98 GiB 21.46 GB)<\/span>
\u00a0\u00a0 Raid Devices : 4<\/span>
\u00a0 Total Devices : 4<\/span>
\u00a0\u00a0\u00a0 Persistence : Superblock is persistent<\/span><\/p>\n

\u00a0\u00a0\u00a0 Update Time : Tue Jun 28 10:36:08 2016<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 State : clean<\/span>
\u00a0Active Devices : 4<\/span>
Working Devices : 4<\/span>
\u00a0Failed Devices : 0<\/span>
\u00a0 Spare Devices : 0<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Layout : left-symmetric<\/span>
\u00a0\u00a0\u00a0\u00a0 Chunk Size : 512K<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Name : debian:0\u00a0 (local to host debian)<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 UUID : 8f039d29:9179c09a:17a76417:e54c9dfa<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Events : 23<\/span><\/p>\n

\u00a0\u00a0\u00a0 Number\u00a0\u00a0 Major\u00a0\u00a0 Minor\u00a0\u00a0 RaidDevice State<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 17\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0 active sync\u00a0\u00a0 \/dev\/sdb1<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 33\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1\u00a0\u00a0\u00a0\u00a0\u00a0 active sync\u00a0\u00a0 \/dev\/sdc1<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 49\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2\u00a0\u00a0\u00a0\u00a0\u00a0 active sync\u00a0\u00a0 \/dev\/sdd1<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 65\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3\u00a0\u00a0\u00a0\u00a0\u00a0 active sync\u00a0\u00a0 \/dev\/sde1<\/span>[@more@]2. \u6a21\u64ec \/dev\/sdd1<\/span> \u6545\u969c
# mdadm –manage –fail \/dev\/md0 \/dev\/sdd1
<\/span>#<\/span> mdadm –manage <\/span>–set-faulty <\/span>\/dev\/md0 \/dev\/sdd1<\/span>
mdadm: set \/dev\/sdd1 faulty in \/dev\/md0<\/span><\/p>\n

3. \u6aa2\u67e5\u76ee\u524d\u7684 RAID \u72c0\u614b
# mdadm -D \/dev\/md0<\/span>
\/dev\/md0:<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Version : 1.2<\/span>
\u00a0 Creation Time : Tue Jun 28 10:25:06 2016<\/span>
\u00a0\u00a0\u00a0\u00a0 Raid Level : raid6<\/span>
\u00a0\u00a0\u00a0\u00a0 Array Size : 41908224 (39.97 GiB 42.91 GB)<\/span>
\u00a0 Used Dev Size : 20954112 (19.98 GiB 21.46 GB)<\/span>
\u00a0\u00a0 Raid Devices : 4<\/span>
\u00a0 Total Devices : 4<\/span>
\u00a0\u00a0\u00a0 Persistence : Superblock is persistent<\/span><\/p>\n

\u00a0\u00a0\u00a0 Update Time : Tue Jun 28 11:12:01 2016<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 State : clean, degraded<\/span>
\u00a0Active Devices : 3<\/span>
Working Devices : 3<\/span>
\u00a0Failed Devices : 1<\/span>
\u00a0 Spare Devices : 0<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Layout : left-symmetric<\/span>
\u00a0\u00a0\u00a0\u00a0 Chunk Size : 512K<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Name : debian:0\u00a0 (local to host debian)<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 UUID : 8f039d29:9179c09a:17a76417:e54c9dfa<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Events : 25<\/span><\/p>\n

\u00a0\u00a0\u00a0 Number\u00a0\u00a0 Major\u00a0\u00a0 Minor\u00a0\u00a0 RaidDevice State<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 17\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0 active sync\u00a0\u00a0 \/dev\/sdb1<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 33\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1\u00a0\u00a0\u00a0\u00a0\u00a0 active sync\u00a0\u00a0 \/dev\/sdc1<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 4\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 4\u00a0\u00a0\u00a0\u00a0\u00a0 removed<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 65\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3\u00a0\u00a0\u00a0\u00a0\u00a0 active sync\u00a0\u00a0 \/dev\/sde1<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 49\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 –\u00a0\u00a0\u00a0\u00a0\u00a0 faulty\u00a0\u00a0 \/dev\/sdd1<\/span><\/p>\n

sdd1[2](F) \u5f8c\u9762 F \u4ee3\u8868\u6545\u969c\uff0cmd0 \u7684\u6700\u5f8c\u4e00\u884c [4\/3]\u8207[UU_U]\u8868\u793a\u51fa\u6709\u4e00\u9846\u78c1\u789f\u58de\u6389\u4e86
# cat \/proc\/mdstat<\/span>
Personalities : [raid6] [raid5] [raid4]<\/span>
md0 : active raid6 sdb1[0] sde1[3]<\/span> sdd1[2](F)<\/span> sdc1[1]<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0 41908224 blocks super 1.2 level 6, 512k chunk, algorithm 2<\/span> [4\/3] [UU_U]<\/span><\/p>\n

unused devices: <none><\/span><\/p>\n

4. \u5c07\u6545\u969c\u7684\u786c\u789f\u79fb\u51fa
# mdadm –manage –remove \/dev\/md0 \/dev\/sdd1<\/span>
mdadm: hot removed \/dev\/sdd1 from \/dev\/md0<\/span><\/p>\n

5. \u6aa2\u8996\u79fb\u9664 \/dev\/sdd1<\/span> \u7684 RAID \u72c0\u614b
# mdadm -D \/dev\/md0<\/span>
\/dev\/md0:<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Version : 1.2<\/span>
\u00a0 Creation Time : Tue Jun 28 10:25:06 2016<\/span>
\u00a0\u00a0\u00a0\u00a0 Raid Level : raid6<\/span>
\u00a0\u00a0\u00a0\u00a0 Array Size : 41908224 (39.97 GiB 42.91 GB)<\/span>
\u00a0 Used Dev Size : 20954112 (19.98 GiB 21.46 GB)<\/span>
\u00a0\u00a0 Raid Devices : 4<\/span>
\u00a0 Total Devices : 3<\/span>
\u00a0\u00a0\u00a0 Persistence : Superblock is persistent<\/span><\/p>\n

\u00a0\u00a0\u00a0 Update Time : Tue Jun 28 11:20:14 2016<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 State : clean, degraded<\/span>
\u00a0Active Devices : 3<\/span>
Working Devices : 3<\/span>
\u00a0Failed Devices : 0<\/span>
\u00a0 Spare Devices : 0<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Layout : left-symmetric<\/span>
\u00a0\u00a0\u00a0\u00a0 Chunk Size : 512K<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Name : debian:0\u00a0 (local to host debian)<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 UUID : 8f039d29:9179c09a:17a76417:e54c9dfa<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Events : 26<\/span><\/p>\n

\u00a0\u00a0\u00a0 Number\u00a0\u00a0 Major\u00a0\u00a0 Minor\u00a0\u00a0 RaidDevice State<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 17\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0 active sync\u00a0\u00a0 \/dev\/sdb1<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 33\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1\u00a0\u00a0\u00a0\u00a0\u00a0 active sync\u00a0\u00a0 \/dev\/sdc1<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 4\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 4\u00a0\u00a0\u00a0\u00a0\u00a0 removed<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 65\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3\u00a0\u00a0\u00a0\u00a0\u00a0 active sync\u00a0\u00a0 \/dev\/sde1<\/span><\/p>\n

6. \u5c07\u65b0\u52a0\u5165\u7684 \/dev\/sdf<\/span> \u78c1\u789f\u6a5f\u5efa\u7acb\u78c1\u789f\u5206\u5272
# fdisk \/dev\/sdf<\/span><\/p>\n

7. \u5c07\u65b0\u589e\u7684 \/dev\/sdf1<\/span> \u52a0\u5165\u5230 RAID \u4e2d
# mdadm –manage –add \/dev\/md0 \/dev\/sdf1<\/span>
mdadm: added \/dev\/sdf1<\/span><\/p>\n

8. \u518d\u6b21\u6aa2\u8996 RAID \u72c0\u614b
# mdadm -D \/dev\/md0<\/span>
\/dev\/md0:<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Version : 1.2<\/span>
\u00a0 Creation Time : Tue Jun 28 10:25:06 2016<\/span>
\u00a0\u00a0\u00a0\u00a0 Raid Level : raid6<\/span>
\u00a0\u00a0\u00a0\u00a0 Array Size : 41908224 (39.97 GiB 42.91 GB)<\/span>
\u00a0 Used Dev Size : 20954112 (19.98 GiB 21.46 GB)<\/span>
\u00a0\u00a0 Raid Devices : 4<\/span>
\u00a0 Total Devices : 4<\/span>
\u00a0\u00a0\u00a0 Persistence : Superblock is persistent<\/span><\/p>\n

\u00a0\u00a0\u00a0 Update Time : Tue Jun 28 11:29:08 2016<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 State : clean, degraded, recovering<\/span>
\u00a0Active Devices : 3<\/span>
Working Devices : 4<\/span>
\u00a0Failed Devices : 0<\/span>
\u00a0 Spare Devices : 1<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Layout : left-symmetric<\/span>
\u00a0\u00a0\u00a0\u00a0 Chunk Size : 512K<\/span><\/p>\n

\u00a0Rebuild Status : 49% complete<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Name : debian:0\u00a0 (local to host debian)<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 UUID : 8f039d29:9179c09a:17a76417:e54c9dfa<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Events : 39<\/span><\/p>\n

\u00a0\u00a0\u00a0 Number\u00a0\u00a0 Major\u00a0\u00a0 Minor\u00a0\u00a0 RaidDevice State<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 17\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0 active sync\u00a0\u00a0 \/dev\/sdb1<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 33\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1\u00a0\u00a0\u00a0\u00a0\u00a0 active sync\u00a0\u00a0 \/dev\/sdc1<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 4\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 81\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2\u00a0\u00a0\u00a0\u00a0\u00a0 spare rebuilding\u00a0\u00a0 \/dev\/sdf1<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 65\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 3\u00a0\u00a0\u00a0\u00a0\u00a0 active sync\u00a0\u00a0 \/dev\/sde1<\/span><\/p>\n

# cat \/proc\/mdstat<\/span>
Personalities : [raid6] [raid5] [raid4]<\/span>
md0 : active raid6<\/span> sdf1[4]<\/span> sdb1[0] sde1[3] sdc1[1]<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0 41908224 blocks super 1.2 level 6, 512k chunk, algorithm 2 [4\/3] [UU_U]<\/span>
\u00a0\u00a0\u00a0\u00a0\u00a0 [=============>…….]\u00a0 recovery = 67.1% (14066688\/20954112) finish=0.9min speed=124729K\/sec<\/span><\/p>\n

unused devices: <none><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

\u53c3\u8003\u7db2\u9801\uff1a\u78c1\u789f\u7ba1\u7406\uff1aSoftRAID \u8207 LVM \u7d9c\u5408\u5be6\u505a\u61c9\u7528\uff08\u4e0a\uff09 \u4ee5 Debian Linux RAID … <\/p>\n

\u95b1\u8b80\u5168\u6587\u3008SoftRAID \u7684\u6545\u969c\u8207\u5fa9\u539f\u3009<\/span><\/a><\/p>\n","protected":false},"author":55,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[179,104],"tags":[],"class_list":["post-19238","post","type-post","status-publish","format-standard","hentry","category-c-87877","category-c-98643"],"meta_key":{"_pingme":["1"],"_encloseme":["1"],"lt_post_id":["648675"]},"_links":{"self":[{"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/posts\/19238"}],"collection":[{"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/users\/55"}],"replies":[{"embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/comments?post=19238"}],"version-history":[{"count":1,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/posts\/19238\/revisions"}],"predecessor-version":[{"id":20798,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/posts\/19238\/revisions\/20798"}],"wp:attachment":[{"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/media?parent=19238"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/categories?post=19238"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/tags?post=19238"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}