mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-22 17:35:59 +03:00
25 lines
793 B
Plaintext
25 lines
793 B
Plaintext
|
# Common problems
|
||
|
|
|
||
|
|
## Duplicate PVs in the system
|
||
|
|
|
||
|
|
LVM tries to detect the common sources of duplicates, mdadm RAID and multipath,
|
||
|
|
there are cases where duplicate PV appears on the system.
|
||
|
|
|
||
|
|
There are two solutions to this problem:
|
||
|
|
|
||
|
|
* Setting a *global_filter* configuration option.
|
||
|
|
* Using of *devices_file* (See [lvmdevices(8)](https://man7.org/linux/man-pages/man8/lvmdevices.8.html))
|
||
|
|
|
||
|
|
## Device Filtering
|
||
|
|
|
||
|
|
*filter* and *global_filter* are meant to be used in two ways:
|
||
|
|
|
||
|
|
* as an allow list, listing patterns for devices which will be accepted
|
||
|
|
* `a|/dev/sdX|`, and rejecting the rest `r|.*|`,
|
||
|
|
* as a reject list, listing only patterns for devices which will be rejected
|
||
|
|
* `r|/dev/sdX|`,
|
||
|
|
|
||
|
|
Even though there are situations where it works, mixing reject and accept
|
||
|
|
patterns is not recommended.
|
||
|
|
|