- About lvcreate: To create a logical volume in an existing volume group
- It comes from “lvm2-2.02.72” package.
- Configuration Files:
- Path: /sbin/lvcreate
Examples:
1. To Power of 2 chunk size for the snapshot logical volume between 4k and 512k
| $ lvcreate -c ChunkSize $ lvcreate –chunksize ChunkSize |
2. To Sets or resets the contiguous allocation policy for logical volumes
| $ lvcreate -C y|n $ lvcreate –contiguous y|n |
3. To give the number of stripes
| $ lvcreate -i stripes $ lvcreate –stripes stripes |
4. To Gives the number of kilobytes for the granularity of the stripes
| $ lvcreate -I StripeSize $ lvcreate –stripesize StripeSize |
5. To give the number of logical extents to allocate for the new logical volume
| $ lvcreate -l LogicalExtentsNumber[%{VG|PVS|FREE|ORIGIN} $ lvcreate –extents LogicalExtentsNumber[%{VG|PVS|FREE|ORIGIN} |
6. To give the size to allocate for the new logical volume
| $ lvcreate -L –size LogicalVolumeSize[bBsSkKmMgGtTpPeE] |
7. To set the minor number
| $ lvcreate –minor minor |
8. To Set to y to make the minor number specified persistent
| $ lvcreate -M y|n $ lvcreate –persistent y|n |
9. To creates a mirrored logical volume with Mirrors copies
| $ lvcreate -m mirrors $ lvcreate –mirrors mirrors |
10. To give name for the new logical volume
| $ lvcreate -n LogicalVolumeName $ lvcreate –name LogicalVolumeName |
11. To disable udev synchronization
| $ lvcreate –noudevsync |
12. To Start or avoid monitoring a mirrored or snapshot logical volume with dmeventd
| $ lvcreate –monitor y|n |
13. To Make no attempt to interact with dmeventd unless –monitor is specified
| $ lvcreate –ignoremonitoring |
14. To Set access permissions to read only or read and write
| $ lvcreate -p r|rw $ lvcreate –permission r|rw |
15. To set read ahead sector count of this logical volume
| $ lvcreate -r ReadAheadSectors|auto|none $ lvcreate –readahead ReadAheadSectors|auto|none |
16. To divide the mirror into regions
| $ lvcreate -R MirrorLogRegionSize $ lvcreate –regionsize MirrorLogRegionSize |
17. To Create a snapshot logical volume (or snapshot) for an existing
| $ lvcreate -s $ lvcreate –snapshot |
18. To create a logical volume that uses the specified segment type
| $ lvcreate –type SegmentType |
19. To Create a sparse device of the given size (in MB by default) using a snapshot
| $ lvcreate –virtualsize VirtualSize |
20. To Controls zeroing of the first KB of data in the new logical volume
| $ lvcreate -Z y|n $ lvcreate –zero y|n |
Related Commands: lvm, vgcreate, lvremove, lvrename lvextend, lvreduce, lvdisplay, lvscan
