Asking for how to transparently add a new physical device and resize the bdev?

here is my scenario:
* I create a bdev1 based on /dev/nvme1 and let the application starts using it.
* After sometime, I found that bdev1 is out of space.
* I wanna attach an new physical device /dev/nvme2 into bdev1 and resize bdev1 to a large size and make it totally transparent to application.

I've taken look at lvstore, I didn't see any iterface to add new devices into the store. Also tried with raid. Similarly, we can't attach new device after raid bdev is created. I wanna know any suggestions.

Hi all,

Shuo has started a Slack conversation on this topic as well. Rather than copying that discussion here, you can view the discussion at the following link if you are interested:

https://spdk-team.slack.com/archives/CJE4C98G1/p1641578075005000?thread_ts=1641542295.002300&cid=CJE4C98G1

Regards,

Jim

On 1/7/22, 11:08 AM, "shuo.chen(a)databricks.com" <shuo.chen(a)databricks.com> wrote:

here is my scenario:
* I create a bdev1 based on /dev/nvme1 and let the application starts using it.
* After sometime, I found that bdev1 is out of space.
* I wanna attach an new physical device /dev/nvme2 into bdev1 and resize bdev1 to a large size and make it totally transparent to application.

I've taken look at lvstore, I didn't see any iterface to add new devices into the store. Also tried with raid. Similarly, we can't attach new device after raid bdev is created. I wanna know any suggestions.
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