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LVM 中有 PV 出现了坏道
| #LVM 中有 PV 出现了坏道 | |
| #数据拷贝 将 /dev/sdc1 拷贝到 /dev/sdd1 | |
| [root@zutuanxue ~]#lvchange -an /dev/baism/abc | |
| [root@zutuanxue ~]# pvmove /dev/sdc1 /dev/sdd1 | |
| /dev/sdc1: Moved: 2.7% | |
| /dev/sdc1: Moved: 100.0% | |
| [root@zutuanxue ~]# vgchange -a n /dev/baism | |
| 0 logical volume(s) in volume group "baism" now active | |
| [root@zutuanxue ~]# vgreduce baism /dev/sdc1 | |
| Removed "/dev/sdc1" from volume group "baism" | |
| [root@zutuanxue ~]# vgchange -a y /dev/baism | |
| 1 logical volume(s) in volume group "baism" now active | |
| [root@zutuanxue ~]#lvchange -ay /dev/baism/abc | |
| #卷组迁移 | |
| #导出卷组 old machine | |
| [root@zutuanxue ~]# vgexport /dev/baism | |
| Volume group "baism" successfully exported | |
| #导入卷组 new machine | |
| [root@zutuanxue ~]# pvscan | |
| [root@zutuanxue ~]# vgimport /dev/baism | |
| Volume group "baism" successfully imported | |
| [root@zutuanxue ~]# vgchange -a y /dev/baism | |
| 1 logical volume(s) in volume group "baism" now active | |
| [root@zutuanxue ~]#lvchange -ay /dev/baism/abc |
volume merged lv 合并
| root@zutuanxue lvm] | |
| Volume group "baism1" successfully created | |
| [] | |
| Volume group "baism2" successfully created | |
| [] | |
| Checking for volume group "baism1" | |
| Checking for volume group "baism2" | |
| Archiving volume group "baism2" metadata (seqno 1). | |
| Archiving volume group "baism1" metadata (seqno 1). | |
| Writing out updated volume group | |
| Creating volume group backup "/etc/lvm/backup/baism1" (seqno 2). | |
| Volume group "baism2" successfully merged into "baism1" |
volume spilt lv 分割
| [root@zutuanxue ~]# vgsplit baism1 baism2 /dev/sdd1 | |
| New volume group "baism2" successfully split from "baism1" | |
| baism1 Old volume | |
| baism2 New volume /dev/sdd1 |
逻辑卷从旧机器迁移到新机器
| #########Backing Up Volume Group Metadata: | |
| 当创建 vg 的时候，系统默认会自动备份 Metadata。/etc/lvm/backup 下面存放的是 metadata 的备份信息，而 /etc/lvm/archive 下面存放的是 metadata 的 archive 信息。[root@zutuanxue backup]# pwd | |
| /etc/lvm/backup | |
| [root@zutuanxue backup]# strings baism2 | |
| # Generated by LVM2 version 2.02.87(2)-rhel7 (2011-10-12): Mon Jan 14 22:27:02 2013 | |
| contents = "Text Format Volume Group" | |
| version = 1 | |
| description = "Created *after* executing'vgsplit baism1 baism2 /dev/sdd1'" #warn | |
| creation_host = "rhel7" # Linux rhel7 2.6.32-220.el6.x86_64 #1 SMP Wed Nov 9 08:03:13 EST 2011 x86_64 | |
| creation_time = 1358173622 # Mon Jan 14 22:27:02 2013 | |
| baism2 { | |
| id = "Ft0eD7-oVca-mwY6-6FeK-TwW2-hTrj-aYxYbq" | |
| seqno = 2 | |
| status = ["RESIZEABLE", "READ", "WRITE"] | |
| flags = [] | |
| extent_size = 8192 # 4 Megabytes | |
| max_lv = 0 | |
| max_pv = 0 | |
| metadata_copies = 0 | |
| physical_volumes { | |
| pv0 { | |
| id = "m7aKrr-D0r9-jOJ2-aK51-ec25-4rwH-4ccbbh" | |
| device = "/dev/sdd1" # Hint only | |
| status = ["ALLOCATABLE"] | |
| flags = [] | |
| dev_size = 4192902 # 1.99933 Gigabytes | |
| pe_start = 2048 | |
| pe_count = 511 # 1.99609 Gigabytes | |
正文完
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