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linux下逻辑卷在线扩展和离线减容.docx

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linux下逻辑卷在线扩展和离线减容

PV sda7 sda8 sda9 sda10 共40G?VG A(20G) B(20G)?sda7 sda9 sda8 sda10?LV A1 A2 B1?++++++++++++++++++++++++++?1.新建分区,更改成8e类型?[mailto:root@desktop2root@desktop2?~]# fdisk -cu /dev/sda?Command (m for help): n?First sector 1048575999, default:?Using default valueLast sector, +sectors or +size{K,M,G} 1048575999, default 1048575999): +10G?Command (m for help): N?First sector 1048575999, default:?Using default valueLast sector, +sectors or +size{K,M,G} 1048575999, default 1048575999): +10G?Command (m for help): N?First sector (119894016-1048575999, default 119894016):?Using default value 119894016?Last sector, +sectors or +size{K,M,G} (119894016-1048575999, default 1048575999): +10G?Command (m for help): N?First sector (140867584-1048575999, default 140867584):?Using default value 140867584?Last sector, +sectors or +size{K,M,G} (140867584-1048575999, default 1048575999): +10G?Command (m for help): t?Partition number (1-10): 7?Hex code (type L to list codes): 8e?Changed system type of partition 7 to 8e (Linux LVM)?Command (m for help): t?Partition number (1-10): 8?Hex code (type L to list codes): 8e?Changed system type of partition 8 to 8e (Linux LVM)?Command (m for help): t?Partition number (1-10): 9?Hex code (type L to list codes): 8e?Changed system type of partition 9 to 8e (Linux LVM)?Command (m for help): t?Partition number (1-10): 10?Hex code (type L to list codes): 8e?Changed system type of partition 10 to 8e (Linux LVM)?Command (m for help): p?Disk /dev/sda: 536.9 GB, 536870912000 bytes?255 heads, 63 sectors/track, 65270 cylinders, total 1048576000 sectors?Units = sectors of 1 * 512 = 512 bytes?Sector size (logical/physical): 512 bytes / 512 bytes?I/O size (minimum/optimal): 512 bytes / 512 bytes?Disk identifier: 0x000ca6b0?Device Boot Start End Blocks Id System?/dev/sda1 * 2048 526335 262144 83 Linux?/dev/sda2 52633625600000 8e Linux LVM?/dev/sda352774911 524288 82 Linu

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