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From: Fiona Ebner <f.ebner@proxmox.com>
To: pve-devel@lists.proxmox.com
Subject: [PATCH-SERIES docs/storage 0/3] close #7204: document and check that thin pools have zeroing enabled
Date: Thu,  5 Feb 2026 17:38:03 +0100	[thread overview]
Message-ID: <20260205163819.219322-1-f.ebner@proxmox.com> (raw)

There were a bunch of new reports in the last week. Not sure why,
maybe a bogus tutorial out there or something along those lines.

Thin pools with zeroing during allocation turned off are currently not
supported for VM images. Using such a pool may lead to data
corruption for various operations like drive mirror.

Document this and add a check in the storage plugin upon storage
activation.

In the future, a dedicated storage configuration option could be
introduced that can be checked by volume_has_feature() and enforced
upon storage activation.

docs:

Fiona Ebner (1):
  close #7204: storage: lvm thin: document that thin pools must have
    zeroing enabled

 pve-storage-lvmthin.adoc | 5 +++++
 1 file changed, 5 insertions(+)


storage:

Fiona Ebner (2):
  lvm plugin: list volumes: also query 'zero' property
  close #7204: lvm thin plugin: die if thin pool does not have zeroing
    configured

 src/PVE/Storage/LVMPlugin.pm     |  6 ++++--
 src/PVE/Storage/LvmThinPlugin.pm | 17 ++++++++++++++++-
 2 files changed, 20 insertions(+), 3 deletions(-)


Summary over all repositories:
  3 files changed, 25 insertions(+), 3 deletions(-)

-- 
Generated by git-murpp 0.5.0




             reply	other threads:[~2026-02-05 16:38 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-05 16:38 Fiona Ebner [this message]
2026-02-05 16:38 ` [PATCH docs 1/3] close #7204: storage: lvm thin: document that thin pools must " Fiona Ebner
2026-02-05 16:38 ` [RFC storage 2/3] lvm plugin: list volumes: also query 'zero' property Fiona Ebner
2026-02-05 16:38 ` [RFC storage 3/3] close #7204: lvm thin plugin: die if thin pool does not have zeroing configured Fiona Ebner

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