内核确信是支持了
lvcreate -L2000M vg
/dev/vg/lvol0: not found: device not cleared
Aborting. Failed to wipe start of new LV.
device-mapper: remove ioctl on failed: 设备或资源忙
semid 294912: semop failed for cookie 0xd4dc062: incorrect semaphore state
Failed to set a proper state for notification semaphore identified by cookie value 223199330 (0xd4dc062) to initialize waiting for incoming notifications.
vgdisplay
--- Volume group ---
VG Name vg
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 11
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 0
Open LV 0
Max PV 0
Cur PV 1
Act PV 1
VG Size 2.00 GiB
PE Size 4.00 MiB
Total PE 512
Alloc PE / Size 0 / 0
Free PE / Size 512 / 2.00 GiB
VG UUID dY6xQf-te9c-6uDd-MtD6-Ejw3-NzM9-YTXG4v
多次执行后可以成功一次,不知道毛病在哪
lvcreate -L3M vg1
Rounding up size to full physical extent 4.00 MiB
/dev/vg1/lvol0: not found: device not cleared
Aborting. Failed to wipe start of new LV.
semid 983040: semop failed for cookie 0xd4d7a3e: incorrect semaphore state
Failed to set a proper state for notification semaphore identified by cookie value 223181374 (0xd4d7a3e) to initialize waiting for incoming notifications.
[root@MagicLinux3 ~]# lvcreate -L3M vg1
Rounding up size to full physical extent 4.00 MiB
/dev/vg1/lvol0: not found: device not cleared
Aborting. Failed to wipe start of new LV.
semid 1048576: semop failed for cookie 0xd4d86d5: incorrect semaphore state
Failed to set a proper state for notification semaphore identified by cookie value 223184597 (0xd4d86d5) to initialize waiting for incoming notifications.
[root@MagicLinux3 ~]# lvcreate -L3M vg1
Rounding up size to full physical extent 4.00 MiB
/dev/vg1/lvol0: not found: device not cleared
Aborting. Failed to wipe start of new LV.
semid 1114112: semop failed for cookie 0xd4d3163: incorrect semaphore state
Failed to set a proper state for notification semaphore identified by cookie value 223162723 (0xd4d3163) to initialize waiting for incoming notifications.
[root@MagicLinux3 ~]# lvcreate -L3M vg1
Rounding up size to full physical extent 4.00 MiB
Logical volume "lvol0" created