Hi Gionatan, The system with the issue is with writeback cache mode enabled.
Best regards, Ryan On Mon, 25 Jun 2018, 18:19 Gionatan Danti, <[email protected]> wrote: > Il 24-06-2018 21:18 Ryan Launchbury ha scritto: > > In testing, forcibly removing the cache, via editing the LVM config > > file has caused extensive XFS filesystem corruption, even when backing > > up the metadata first and restoring after the cache device is missing. > > Any advice on how to safely uncache the volume would be massively > > appreciated. > > It is my understanding that a writethrough cache should *never* have any > data that are not on the backing volumes already. > In other words, forcibly removing a writethough cache (ie: disconnetting > the physical cache device) should not cause any harms to > filesystem/data. > > Can you show the output of "dmsetup table"? > Thanks. > > -- > Danti Gionatan > Supporto Tecnico > Assyoma S.r.l. - www.assyoma.it > email: [email protected] - [email protected] > GPG public key ID: FF5F32A8 >
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