Hallo in die Runde,
ich stehe vor einem Problem und komme nicht weiter. Evtl sind hier ein paar (wobei einer reichen würde) Spezialisten, die eine passende Antwort haben. Ich hatte ein funktionierendes Raid5 und wollte dieses mit Hilfe von
1 | mdadm --grow /dev/md0 --level=6 --raid-devices=6 --backup-file=/root/raid5backup |
in ein Raid 6 umwandeln. Lief auch an und dann bei ca 17% gab es leider einen Stromausfall. Wenn ich jetzt versuche das Raid mit Hilfe von
1 | mdadm /dev/md0 --continue --backup-file=raid5backup |
zu starten erhalte ich folgendes:
1 | mdadm: --continue does not set the mode, and so cannot be the first option |
und natürlich
1 2 3 4 5 6 | cat /proc/mdstat Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md0 : inactive sdc1[7](S) sdf1[6](S) sdg1[9](S) sdb1[5](S) sdd1[1](S) sde1[2](S) 17580782355 blocks super 1.2 unused devices: <none> |
Ein
1 | mdadm --assemble --scan -v |
gibt folgendes aus:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | mdadm: looking for devices for /dev/md/0 mdadm: No super block found on /dev/sdg (Expected magic a92b4efc, got 00000000) mdadm: no RAID superblock on /dev/sdg mdadm: No super block found on /dev/sdf (Expected magic a92b4efc, got 00000000) mdadm: no RAID superblock on /dev/sdf mdadm: No super block found on /dev/sde (Expected magic a92b4efc, got 00000000) mdadm: no RAID superblock on /dev/sde mdadm: No super block found on /dev/sdd (Expected magic a92b4efc, got 00000000) mdadm: no RAID superblock on /dev/sdd mdadm: No super block found on /dev/sdc (Expected magic a92b4efc, got 00000000) mdadm: no RAID superblock on /dev/sdc mdadm: No super block found on /dev/sdb (Expected magic a92b4efc, got 00000000) mdadm: no RAID superblock on /dev/sdb mdadm: No super block found on /dev/sda2 (Expected magic a92b4efc, got 00000439) mdadm: no RAID superblock on /dev/sda2 mdadm: No super block found on /dev/sda1 (Expected magic a92b4efc, got 00000000) mdadm: no RAID superblock on /dev/sda1 mdadm: No super block found on /dev/sda (Expected magic a92b4efc, got 00000000) mdadm: no RAID superblock on /dev/sda mdadm: /dev/sdg1 is identified as a member of /dev/md/0, slot 5. mdadm: /dev/sdf1 is identified as a member of /dev/md/0, slot 3. mdadm: /dev/sde1 is identified as a member of /dev/md/0, slot 2. mdadm: /dev/sdd1 is identified as a member of /dev/md/0, slot 1. mdadm: /dev/sdc1 is identified as a member of /dev/md/0, slot 0. mdadm: /dev/sdb1 is identified as a member of /dev/md/0, slot 4. mdadm: /dev/md/0 has an active reshape - checking if critical section needs to be restored mdadm: Failed to find backup of critical section mdadm: Failed to restore critical section for reshape, sorry. Possibly you needed to specify the --backup-file |
Gebe ich das Backup-File mit an ist es wohl nicht das richtige:
1 2 | mdadm --assemble --scan -v --backup-file=raid5backup mdadm: --backup_file not meaningful with a --scan assembly. |
Im Netz hat wohl einer einfach das Array neu erstellt mit Hilfe von
1 | mdadm --create /dev/md0 --level=6 --chunk=64 --raid-devices=6 /dev/sd[bcdefg]1 |
aber ich bin mir nicht sicher ob die Chunk Größe mit 64 die richtige ist und vor allem möchte ich schreibenden Zugriff auf die HDDs nur als letzte Option wahrnehmen.
Irgendwelche Tipps wie ich das Raid wieder ans laufen bekomme? thx
Achja die Ausgabe von mdadm -Evvs
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 | /dev/sdg1: Magic : a92b4efc Version : 1.2 Feature Map : 0x7 Array UUID : ccf0f47b:5b010b70:61f4e2ce:be7b445f Name : Rechenknecht:0 (local to host Rechenknecht) Creation Time : Mon Apr 24 06:24:26 2017 Raid Level : raid6 Raid Devices : 6 Avail Dev Size : 5860260785 (2794.39 GiB 3000.45 GB) Array Size : 11720519680 (11177.56 GiB 12001.81 GB) Used Dev Size : 5860259840 (2794.39 GiB 3000.45 GB) Data Offset : 262144 sectors Super Offset : 8 sectors Recovery Offset : 1020796928 sectors Unused Space : before=262064 sectors, after=945 sectors State : clean Device UUID : f88ef9e5:0380b827:eee98db3:50789a58 Internal Bitmap : 8 sectors from superblock Reshape pos'n : 2041593856 (1947.02 GiB 2090.59 GB) New Layout : left-symmetric Update Time : Wed Sep 25 02:37:33 2019 Bad Block Log : 512 entries available at offset 24 sectors Checksum : c9e9e80c - correct Events : 1281239 Layout : left-symmetric-6 Chunk Size : 512K Device Role : Active device 5 Array State : AAAAAA ('A' == active, '.' == missing, 'R' == replacing) /dev/sdg: MBR Magic : aa55 Partition[0] : 4294967295 sectors at 1 (type ee) /dev/sdf1: Magic : a92b4efc Version : 1.2 Feature Map : 0x5 Array UUID : ccf0f47b:5b010b70:61f4e2ce:be7b445f Name : Rechenknecht:0 (local to host Rechenknecht) Creation Time : Mon Apr 24 06:24:26 2017 Raid Level : raid6 Raid Devices : 6 Avail Dev Size : 5860260785 (2794.39 GiB 3000.45 GB) Array Size : 11720519680 (11177.56 GiB 12001.81 GB) Used Dev Size : 5860259840 (2794.39 GiB 3000.45 GB) Data Offset : 262144 sectors Super Offset : 8 sectors Unused Space : before=262064 sectors, after=945 sectors State : clean Device UUID : c2361f59:0a7460ec:fc22addd:10b54c93 Internal Bitmap : 8 sectors from superblock Reshape pos'n : 2041593856 (1947.02 GiB 2090.59 GB) New Layout : left-symmetric Update Time : Wed Sep 25 02:37:33 2019 Bad Block Log : 512 entries available at offset 24 sectors Checksum : 29b0d9a7 - correct Events : 1281239 Layout : left-symmetric-6 Chunk Size : 512K Device Role : Active device 3 Array State : AAAAAA ('A' == active, '.' == missing, 'R' == replacing) /dev/sdf: MBR Magic : aa55 Partition[0] : 4294967295 sectors at 1 (type ee) /dev/sde1: Magic : a92b4efc Version : 1.2 Feature Map : 0x5 Array UUID : ccf0f47b:5b010b70:61f4e2ce:be7b445f Name : Rechenknecht:0 (local to host Rechenknecht) Creation Time : Mon Apr 24 06:24:26 2017 Raid Level : raid6 Raid Devices : 6 Avail Dev Size : 5860260785 (2794.39 GiB 3000.45 GB) Array Size : 11720519680 (11177.56 GiB 12001.81 GB) Used Dev Size : 5860259840 (2794.39 GiB 3000.45 GB) Data Offset : 262144 sectors Super Offset : 8 sectors Unused Space : before=262056 sectors, after=945 sectors State : clean Device UUID : d91f0ce0:e7784ac4:631567b8:c5321cfe Internal Bitmap : 8 sectors from superblock Reshape pos'n : 2041593856 (1947.02 GiB 2090.59 GB) New Layout : left-symmetric Update Time : Wed Sep 25 02:37:33 2019 Bad Block Log : 512 entries available at offset 72 sectors Checksum : ce1137e3 - correct Events : 1281239 Layout : left-symmetric-6 Chunk Size : 512K Device Role : Active device 2 Array State : AAAAAA ('A' == active, '.' == missing, 'R' == replacing) /dev/sde: MBR Magic : aa55 Partition[0] : 4294967295 sectors at 1 (type ee) /dev/sdd1: Magic : a92b4efc Version : 1.2 Feature Map : 0x5 Array UUID : ccf0f47b:5b010b70:61f4e2ce:be7b445f Name : Rechenknecht:0 (local to host Rechenknecht) Creation Time : Mon Apr 24 06:24:26 2017 Raid Level : raid6 Raid Devices : 6 Avail Dev Size : 5860260785 (2794.39 GiB 3000.45 GB) Array Size : 11720519680 (11177.56 GiB 12001.81 GB) Used Dev Size : 5860259840 (2794.39 GiB 3000.45 GB) Data Offset : 262144 sectors Super Offset : 8 sectors Unused Space : before=262056 sectors, after=945 sectors State : clean Device UUID : de1dd26d:a81b3f92:0008f800:f66d2736 Internal Bitmap : 8 sectors from superblock Reshape pos'n : 2041593856 (1947.02 GiB 2090.59 GB) New Layout : left-symmetric Update Time : Wed Sep 25 02:37:33 2019 Bad Block Log : 512 entries available at offset 72 sectors Checksum : aa680674 - correct Events : 1281239 Layout : left-symmetric-6 Chunk Size : 512K Device Role : Active device 1 Array State : AAAAAA ('A' == active, '.' == missing, 'R' == replacing) /dev/sdd: MBR Magic : aa55 Partition[0] : 4294967295 sectors at 1 (type ee) /dev/sdc1: Magic : a92b4efc Version : 1.2 Feature Map : 0x5 Array UUID : ccf0f47b:5b010b70:61f4e2ce:be7b445f Name : Rechenknecht:0 (local to host Rechenknecht) Creation Time : Mon Apr 24 06:24:26 2017 Raid Level : raid6 Raid Devices : 6 Avail Dev Size : 5860260785 (2794.39 GiB 3000.45 GB) Array Size : 11720519680 (11177.56 GiB 12001.81 GB) Used Dev Size : 5860259840 (2794.39 GiB 3000.45 GB) Data Offset : 262144 sectors Super Offset : 8 sectors Unused Space : before=262064 sectors, after=945 sectors State : clean Device UUID : e9c86611:94975014:5c1dcfa4:3d67c68d Internal Bitmap : 8 sectors from superblock Reshape pos'n : 2041593856 (1947.02 GiB 2090.59 GB) New Layout : left-symmetric Update Time : Wed Sep 25 02:37:33 2019 Bad Block Log : 512 entries available at offset 24 sectors Checksum : cb843be4 - correct Events : 1281239 Layout : left-symmetric-6 Chunk Size : 512K Device Role : Active device 0 Array State : AAAAAA ('A' == active, '.' == missing, 'R' == replacing) /dev/sdc: MBR Magic : aa55 Partition[0] : 4294967295 sectors at 1 (type ee) /dev/sdb1: Magic : a92b4efc Version : 1.2 Feature Map : 0x5 Array UUID : ccf0f47b:5b010b70:61f4e2ce:be7b445f Name : Rechenknecht:0 (local to host Rechenknecht) Creation Time : Mon Apr 24 06:24:26 2017 Raid Level : raid6 Raid Devices : 6 Avail Dev Size : 5860260785 (2794.39 GiB 3000.45 GB) Array Size : 11720519680 (11177.56 GiB 12001.81 GB) Used Dev Size : 5860259840 (2794.39 GiB 3000.45 GB) Data Offset : 262144 sectors Super Offset : 8 sectors Unused Space : before=262056 sectors, after=945 sectors State : clean Device UUID : b20f666a:92f7e058:ae3fa630:f53f285f Internal Bitmap : 8 sectors from superblock Reshape pos'n : 2041593856 (1947.02 GiB 2090.59 GB) New Layout : left-symmetric Update Time : Wed Sep 25 02:37:33 2019 Bad Block Log : 512 entries available at offset 72 sectors Checksum : c64cdde3 - correct Events : 1281239 Layout : left-symmetric-6 Chunk Size : 512K Device Role : Active device 4 Array State : AAAAAA ('A' == active, '.' == missing, 'R' == replacing) /dev/sdb: MBR Magic : aa55 Partition[0] : 4294967295 sectors at 1 (type ee) mdadm: No md superblock detected on /dev/sda2. mdadm: No md superblock detected on /dev/sda1. /dev/sda: MBR Magic : aa55 Partition[0] : 976773167 sectors at 1 (type ee) |
Das ganze läuft unter Kubuntu 18.04.3 LTS und mdadm ist die zugehörige Verion 4.1
Moderiert von Taomon:
Sichtbar gemacht.