Linux增加磁盘
fdisk -l 会看到有一块新的设置,如果你先前有一块硬盘(sda1, sda2…),新加的这块应该是(/dev/sdb)
1.pvcreate -v /dev/sdb (创建物理卷)
? pvcreate: Initialize physical volume(s) for use by LVM
pvcreate
??????? [–restorefile file]
??????? [-d|–debug]
??????? [-f[f]|–force [–force]]
??????? [-h|-?|–help]
??????? [–labelsector sector]
??????? [-M|–metadatatype 1|2]
??????? [–metadatacopies #copies]
??????? [–metadatasize MetadataSize[kKmMgGtTpPeE]]
??????? [–setphysicalvolumesize PhysicalVolumeSize[kKmMgGtTpPeE]
??????? [-t|–test]
??????? [-u|–uuid uuid]
??????? [-v|–verbose] 冗长的，详细的
??????? [-y|–yes]
??????? [-Z|–zero {y|n}]
??????? [–version]
??????? PhysicalVolume [PhysicalVolume…]
2.vgcreate -v oradatavg /dev/sdb (创建卷组)
? vgcreate: Create a volume group
vgcreate
??????? [-A|–autobackup {y|n}]
??????? [–addtag Tag]
??????? [–alloc AllocationPolicy]
??????? [-c|–clustered {y|n}]
??????? [-d|–debug]
??????? [-h|–help]
??????? [-l|–maxlogicalvolumes MaxLogicalVolumes]
??????? [-M|–metadatatype 1|2]
??????? [-p|–maxphysicalvolumes MaxPhysicalVolumes]
??????? [-s|–physicalextentsize PhysicalExtentSize[kKmMgGtTpPeE]]
??????? [-t|–test]
??????? [-v|–verbose]
??????? [–version]
??????? VolumeGroupName PhysicalVolume [PhysicalVolume…]
3.lvcreate -v -L 7.5G -n lv_oradata /dev/oradatavg (创建逻辑卷)
lvcreate: Create a logical volume
lvcreate
??????? [-A|–autobackup {y|n}]
??????? [–addtag Tag]
??????? [–alloc AllocationPolicy]
??????? [-C|–contiguous {y|n}]
??????? [-d|–debug]
??????? [-h|-?|–help]
??????? [-i|–stripes Stripes [-I|–stripesize StripeSize]]
??????? {-l|–extents LogicalExtentsNumber |
???????? -L|–size LogicalVolumeSize[kKmMgGtTpPeE]}
??????? [-M|–persistent {y|n}] [–major major] [–minor minor]
??????? [-m|–mirrors Mirrors [–nosync] [–corelog]]
??????? [-n|–name LogicalVolumeName]
??????? [-p|–permission {r|rw}]
??????? [-r|–readahead ReadAheadSectors]
??????? [-R|–regionsize MirrorLogRegionSize]
??????? [-t|–test]
??????? [–type VolumeType]
??????? [-v|–verbose]
??????? [-Z|–zero {y|n}]
??????? [–version]
??????? VolumeGroupName [PhysicalVolumePath…]
lvcreate -s|–snapshot
??????? [-c|–chunksize]
??????? [-A|–autobackup {y|n}]
??????? [–addtag Tag]
??????? [–alloc AllocationPolicy]
??????? [-C|–contiguous {y|n}]
??????? [-d|–debug]
??????? [-h|-?|–help]
??????? [-i|–stripes Stripes [-I|–stripesize StripeSize]]
??????? {-l|–extents LogicalExtentsNumber[%{VG|LV|FREE}] |
???????? -L|–size LogicalVolumeSize[kKmMgGtTpPeE]}
??????? [-M|–persistent {y|n}] [–major major] [–minor minor]
??????? [-n|–name LogicalVolumeName]
??????? [-p|–permission {r|rw}]
??????? [-r|–readahead ReadAheadSectors]
??????? [-t|–test]
??????? [-v|–verbose]
??????? [–version]
??????? OriginalLogicalVolume[Path] [PhysicalVolumePath…]
4.mkfs.ext2 /dev/oradatavg/lv_oradata (创建文件系统)
5.mkdir /oradata
6.mount /dev/oradatavg/lv_oradata /oradata (加载)
7.chown -R oracle:dba /oradata? (授权)
8.vi /etc/fstab? 添加 /dev/oradatavg/lv_oradata?????? /oradata??????? ext2??? defaults??????? 0?????? 0
# fstab文件格式
下面是/etc/fatab文件的一个示例行：
fs_spec fs_file fs_type fs_options fs_dump fs_pass
fs_spec – 该字段定义希望加载的文件系统所在的设备或远程文件系统，对于一般的本地块设备情况来说：IDE设备一般描述为/dev/hdaXN，X是IDE设备通道 (a, b, or c)，N代表分区号；SCSI设备一描述为/dev/sdaXN。对于NFS情况，格式一般为<host>:<dir>,例如： `knuth.aeb.nl:/’。对于procfs，使用`proc’来定义。
fs_file – 该字段描述希望的文件系统加载的目录点，对于swap设备，该字段为none；对于加载目录名包含空格的情况，用40来表示空格。
fs_type – 定义了该设备上的文件系统，一般常见的文件类型为ext2 (Linux设备的常用文件类型)、vfat(Windows系统的fat32格式)、NTFS、iso9600等。
fs_options – 指定加载该设备的文件系统是需要使用的特定参数选项，多个参数是由逗号分隔开来。对于大多数系统使用”defaults”就可以满足需要。其他常见的选项包
