[DRBD-user] missing of storage plugin document

Roland Kammerer roland.kammerer at linbit.com
Thu Aug 31 09:58:51 CEST 2017

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


On Thu, Aug 31, 2017 at 11:01:05AM +0800, 杨成伟 wrote:
> Hi list,
> 
> The document of drbd storage plugin I found is a small section here
> https://docs.linbit.com/doc/users-guide-90/s-drbdmanage-storage-plugins/
> 
> It's quite simple seems helps a little.
> 
> Is there any more document about sotrage plugins? say:
> 
> Is it possible to change storage plugin?

What is unclear here?: "Currently it is not supported to switch storage
plugins on the fly. The workflow is: Add a new node, modify the
configuration for that node, make use of the node. Changing other
settings (like the log-level) on the fly is perfectly fine."

> If yes, how, if no, why?

Because it would require loading multiple storage plugins at a time.
Something no customer was interested so far.

> What's the difference among these sotrage plugins?

Hm, what information would you like to see there? The LVM plugin creates
DRBD backing devices on LVM. The thin variant does that thinly
provisioned. The ZFS plugin uses ZFS ;-).

> Following the drbd document, I got many questions without answers like
> these.

Feel free to ask, and if in the mood help to improve the documentation:
https://git.linbit.com/linbit-documentation.git

Regards, rck



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