From: "DERUMIER, Alexandre via pve-devel" <pve-devel@lists.proxmox.com>
To: "pve-devel@lists.proxmox.com" <pve-devel@lists.proxmox.com>,
"w.bumiller@proxmox.com" <w.bumiller@proxmox.com>
Cc: "DERUMIER, Alexandre" <alexandre.derumier@groupe-cyllene.com>
Subject: Re: [pve-devel] [PATCH pve-storage] lvm: use blkdiscard instead cstream to saferemove drive
Date: Fri, 15 Aug 2025 05:47:03 +0000 [thread overview]
Message-ID: <mailman.104.1755236833.385.pve-devel@lists.proxmox.com> (raw)
In-Reply-To: <mailman.103.1755234673.385.pve-devel@lists.proxmox.com>
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From: "DERUMIER, Alexandre" <alexandre.derumier@groupe-cyllene.com>
To: "pve-devel@lists.proxmox.com" <pve-devel@lists.proxmox.com>, "w.bumiller@proxmox.com" <w.bumiller@proxmox.com>
Subject: Re: [pve-devel] [PATCH pve-storage] lvm: use blkdiscard instead cstream to saferemove drive
Date: Fri, 15 Aug 2025 05:47:03 +0000
Message-ID: <b2661e0b39c65aaf6e3ba5859fc932080cbb6464.camel@groupe-cyllene.com>
The doc from ovirt was a little bit old,
REQ_OP_WRITE_SAME is not used anymore in recent kernel,
REQ_OP_WRITE_ZEROES is used since 2017, and
/sys/block/dm-25/queue/write_zeroes_max_bytes
show if the feature is available.
(it's was enabled on my test machine, that's why blkdiscard is a lot
faster than cstream)
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prev parent reply other threads:[~2025-08-15 5:45 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-14 9:24 Alexandre Derumier via pve-devel
2025-08-14 9:37 ` Wolfgang Bumiller
2025-08-14 10:07 ` DERUMIER, Alexandre via pve-devel
[not found] ` <9d5353263ee0aa3ee67d8d331f674f8a00044b1e.camel@groupe-cyllene.com>
2025-08-14 12:05 ` Wolfgang Bumiller
2025-08-14 13:11 ` DERUMIER, Alexandre via pve-devel
2025-08-15 5:10 ` DERUMIER, Alexandre via pve-devel
2025-08-15 5:47 ` DERUMIER, Alexandre via pve-devel [this message]
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