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diff --git a/content/posts/recover-softraidlvm.md b/content/posts/recover-softraidlvm.md deleted file mode 100644 index 9efdbab..0000000 --- a/content/posts/recover-softraidlvm.md +++ /dev/null @@ -1,100 +0,0 @@ -Title: Recover Softraid/LVM -Date: 2012-02-06 10:24 -Slug: recover-softraidlvm - -MD Array fails to assemble --------------------------- - -</p> - -<p> -<figure class="code"> -<figcaption> -<span>Find the Problem</span> - -</figcaption> -<div class="highlight"> - -+--------------------------------------+--------------------------------------+ -| ``` {.line-numbers} | #?/bin/shcat /proc/mdstatmdadm - | -| 12345 | D --scanmdadm -E --scanmdadm -E /dev | -| ``` | /sd[abcdef]1 | -+--------------------------------------+--------------------------------------+ - -</div> - -</figure> -</p> - -<p> -<figure class="code"> -<figcaption> -<span>Try to assemble manually</span> - -</figcaption> -<div class="highlight"> - -+--------------------------------------+--------------------------------------+ -| ``` {.line-numbers} | #?/bin/shmdadm --stop /dev/md{0, | -| 123 | 127}mdadm --assemble /dev/md0 /dev/s | -| ``` | d{a,b,c,d,e,f}1 --force | -+--------------------------------------+--------------------------------------+ - -</div> - -</figure> -</p> - -<p> -<figure class="code"> -<figcaption> -<span>recover a failed device in the array</span> - -</figcaption> -<div class="highlight"> - -+--------------------------------------+--------------------------------------+ -| ``` {.line-numbers} | #?/bin/shmdadm /dev/md0 --re-add | -| 123456 | /dev/sdx1 # will likely failmdadm - | -| ``` | -zero-superblock /dev/sdx1 # reap th | -| | e deviceecho 200000 > /proc/sys/dev/ | -| | raid/speed_limit_min # speed up reco | -| | verymdadm /dev/md0 --add /dev/sde1sl | -| | eep 56000 && echo "FINISHED!" | -+--------------------------------------+--------------------------------------+ - -</div> - -</figure> -</p> - -Recover LVM after doing something stupid ----------------------------------------- - -</p> - -<p> -<figure class="code"> -<figcaption> -<span>Restore VolGroup Partitioning</span> - -</figcaption> -<div class="highlight"> - -+--------------------------------------+--------------------------------------+ -| ``` {.line-numbers} | #?/bin/sh# imagine you did somet | -| 123456789 | hing like 'vgremove vg'vgdisplay -v | -| ``` | # > logical volume: empty :(# lvm st | -| | ores backup of partitioning, yayvgcf | -| | grestore -f /etc/lvm/archive/vg_0001 | -| | 8-2146062166.vg -v vgvgchange -ayvgd | -| | isplay -v # > logical volume: files1 | -| | e2fsck /dev/vg/files1mount /dev/vg/ | -| | files1 | -+--------------------------------------+--------------------------------------+ - -</div> - -</figure> -</p> - |