您的位置主页 > 系统管理

lvm中的pe默认是4M 最大能支持多大 1T?2T






If the volume group metadata uses lvm1 format, extents can vary in size from 8KB to 16GB and there is a limit of 65534 extents
in each logical volume.  The default of 4 MB leads to a maximum logical volume size of around 256GB.

If the volume group metadata uses lvm2 format those restrictions do not apply, but having a large number of extents will  slow
down the tools but have no impact on I/O performance to the logical volume.  The smallest PE is 1KB.

The 2.4 kernel has a limitation of 2TB per block device.