From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mimecast-mx02.redhat.com (mimecast04.extmail.prod.ext.rdu2.redhat.com [10.11.55.20]) by smtp.corp.redhat.com (Postfix) with ESMTPS id C09852166B28 for ; Tue, 14 Jan 2020 09:52:33 +0000 (UTC) Received: from us-smtp-1.mimecast.com (us-smtp-delivery-1.mimecast.com [207.211.31.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 5FA83101D22A for ; Tue, 14 Jan 2020 09:52:33 +0000 (UTC) Received: by mail-io1-f54.google.com with SMTP id c16so13123958ioh.6 for ; Tue, 14 Jan 2020 01:52:29 -0800 (PST) MIME-Version: 1.0 From: Paul Dann Date: Tue, 14 Jan 2020 09:52:17 +0000 Message-ID: Content-Type: multipart/alternative; boundary="000000000000c76b93059c168cbd" Subject: [linux-lvm] lvreduce thin-pool Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: To: linux-lvm@redhat.com --000000000000c76b93059c168cbd Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hi there, I've been following Ede Wolf's thread with interest, but it hasn't quite covered my query, and I've not been able to find much about this in the archives: Are there any plans to implement reducing of thin pools? I've been bitten several times by carelessly allowing a thin pool to expand onto unsuitable storage and subsequently being unable to reduce the pool again to ensure IO performance of the pool. (I know that better forward planning can mitigate this.) Mainly, I'm wondering if there are technical reasons this hasn't been implemented yet? On the face of it, I'd have expected this to be a relatively straight-forward procedure? But I'd be interested in why this might not be the case. Cheers, Paul --000000000000c76b93059c168cbd Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hi there,

I've been foll= owing Ede Wolf's thread with interest, but it hasn't quite covered = my query, and I've not been able to find much about this in the archive= s:

Are there any plans to implement reducing of th= in pools? I've been bitten several times by carelessly allowing a thin = pool to expand onto unsuitable storage and subsequently being unable to red= uce the pool again to ensure IO performance of the pool. (I know that bette= r forward planning can mitigate this.)

Mainly,= I'm wondering if there are technical reasons this hasn't been impl= emented yet? On the face of it, I'd have expected this to be a relative= ly straight-forward procedure? But I'd be interested in why this might = not be the case.

Cheers,
Paul
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