* [pve-devel] [PATCH pve-storage 1/2] common: add qemu_img_create an preallocation_cmd_option [not found] <20250519102310.911326-1-alexandre.derumier@groupe-cyllene.com> @ 2025-05-19 10:23 ` Alexandre Derumier via pve-devel 2025-05-19 10:23 ` [pve-devel] [PATCH pve-storage 2/2] common: qemu_img_create: add backing_file support Alexandre Derumier via pve-devel 1 sibling, 0 replies; 5+ messages in thread From: Alexandre Derumier via pve-devel @ 2025-05-19 10:23 UTC (permalink / raw) To: pve-devel; +Cc: Alexandre Derumier [-- Attachment #1: Type: message/rfc822, Size: 7954 bytes --] From: Alexandre Derumier <alexandre.derumier@groupe-cyllene.com> To: pve-devel@lists.proxmox.com Subject: [PATCH pve-storage 1/2] common: add qemu_img_create an preallocation_cmd_option Date: Mon, 19 May 2025 12:23:09 +0200 Message-ID: <20250519102310.911326-2-alexandre.derumier@groupe-cyllene.com> Signed-off-by: Alexandre Derumier <alexandre.derumier@groupe-cyllene.com> --- src/PVE/Storage/Common.pm | 53 ++++++++++++++++++++++++++++++ src/PVE/Storage/GlusterfsPlugin.pm | 2 +- src/PVE/Storage/Plugin.pm | 47 +------------------------- 3 files changed, 55 insertions(+), 47 deletions(-) diff --git a/src/PVE/Storage/Common.pm b/src/PVE/Storage/Common.pm index bd9c951..0770d70 100644 --- a/src/PVE/Storage/Common.pm +++ b/src/PVE/Storage/Common.pm @@ -5,12 +5,26 @@ use warnings; use PVE::JSONSchema; use PVE::Syscall; +use PVE::Tools qw(run_command); use constant { FALLOC_FL_KEEP_SIZE => 0x01, # see linux/falloc.h FALLOC_FL_PUNCH_HOLE => 0x02, # see linux/falloc.h }; +our $QCOW2_PREALLOCATION = { + off => 1, + metadata => 1, + falloc => 1, + full => 1, +}; + +our $RAW_PREALLOCATION = { + off => 1, + falloc => 1, + full => 1, +}; + =pod =head1 NAME @@ -107,4 +121,43 @@ sub deallocate : prototype($$$) { } } + +sub preallocation_cmd_option { + my ($scfg, $fmt) = @_; + + my $prealloc = $scfg->{preallocation}; + + if ($fmt eq 'qcow2') { + $prealloc = $prealloc // 'metadata'; + + die "preallocation mode '$prealloc' not supported by format '$fmt'\n" + if !$QCOW2_PREALLOCATION->{$prealloc}; + + return "preallocation=$prealloc"; + } elsif ($fmt eq 'raw') { + $prealloc = $prealloc // 'off'; + $prealloc = 'off' if $prealloc eq 'metadata'; + + die "preallocation mode '$prealloc' not supported by format '$fmt'\n" + if !$RAW_PREALLOCATION->{$prealloc}; + + return "preallocation=$prealloc"; + } + + return; +} + +sub qemu_img_create { + my ($scfg, $fmt, $size, $path) = @_; + + my $cmd = ['/usr/bin/qemu-img', 'create']; + + my $prealloc_opt = preallocation_cmd_option($scfg, $fmt); + push @$cmd, '-o', $prealloc_opt if defined($prealloc_opt); + + push @$cmd, '-f', $fmt, $path, "${size}K"; + + run_command($cmd, errmsg => "unable to create image"); +} + 1; diff --git a/src/PVE/Storage/GlusterfsPlugin.pm b/src/PVE/Storage/GlusterfsPlugin.pm index 18493cb..b1a541d 100644 --- a/src/PVE/Storage/GlusterfsPlugin.pm +++ b/src/PVE/Storage/GlusterfsPlugin.pm @@ -265,7 +265,7 @@ sub alloc_image { my $cmd = ['/usr/bin/qemu-img', 'create']; - my $prealloc_opt = PVE::Storage::Plugin::preallocation_cmd_option($scfg, $fmt); + my $prealloc_opt = PVE::Storage::Common::preallocation_cmd_option($scfg, $fmt); push @$cmd, '-o', $prealloc_opt if defined($prealloc_opt); push @$cmd, '-f', $fmt, $volumepath, "${size}K"; diff --git a/src/PVE/Storage/Plugin.pm b/src/PVE/Storage/Plugin.pm index 4e16420..7030e4e 100644 --- a/src/PVE/Storage/Plugin.pm +++ b/src/PVE/Storage/Plugin.pm @@ -47,19 +47,6 @@ our @SHARED_STORAGE = ( 'pbs', ); -our $QCOW2_PREALLOCATION = { - off => 1, - metadata => 1, - falloc => 1, - full => 1, -}; - -our $RAW_PREALLOCATION = { - off => 1, - falloc => 1, - full => 1, -}; - our $MAX_VOLUMES_PER_GUEST = 1024; cfs_register_file ('storage.cfg', @@ -577,31 +564,6 @@ sub parse_config { return $cfg; } -sub preallocation_cmd_option { - my ($scfg, $fmt) = @_; - - my $prealloc = $scfg->{preallocation}; - - if ($fmt eq 'qcow2') { - $prealloc = $prealloc // 'metadata'; - - die "preallocation mode '$prealloc' not supported by format '$fmt'\n" - if !$QCOW2_PREALLOCATION->{$prealloc}; - - return "preallocation=$prealloc"; - } elsif ($fmt eq 'raw') { - $prealloc = $prealloc // 'off'; - $prealloc = 'off' if $prealloc eq 'metadata'; - - die "preallocation mode '$prealloc' not supported by format '$fmt'\n" - if !$RAW_PREALLOCATION->{$prealloc}; - - return "preallocation=$prealloc"; - } - - return; -} - # Storage implementation # called during addition of storage (before the new storage config got written) @@ -926,14 +888,7 @@ sub alloc_image { umask $old_umask; die $err if $err; } else { - my $cmd = ['/usr/bin/qemu-img', 'create']; - - my $prealloc_opt = preallocation_cmd_option($scfg, $fmt); - push @$cmd, '-o', $prealloc_opt if defined($prealloc_opt); - - push @$cmd, '-f', $fmt, $path, "${size}K"; - - eval { run_command($cmd, errmsg => "unable to create image"); }; + eval { PVE::Storage::Common::qemu_img_create($scfg, $fmt, $size, $path) }; if ($@) { unlink $path; rmdir $imagedir; -- 2.39.5 [-- Attachment #2: Type: text/plain, Size: 160 bytes --] _______________________________________________ pve-devel mailing list pve-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel ^ permalink raw reply [flat|nested] 5+ messages in thread
* [pve-devel] [PATCH pve-storage 2/2] common: qemu_img_create: add backing_file support [not found] <20250519102310.911326-1-alexandre.derumier@groupe-cyllene.com> 2025-05-19 10:23 ` [pve-devel] [PATCH pve-storage 1/2] common: add qemu_img_create an preallocation_cmd_option Alexandre Derumier via pve-devel @ 2025-05-19 10:23 ` Alexandre Derumier via pve-devel 1 sibling, 0 replies; 5+ messages in thread From: Alexandre Derumier via pve-devel @ 2025-05-19 10:23 UTC (permalink / raw) To: pve-devel; +Cc: Alexandre Derumier [-- Attachment #1: Type: message/rfc822, Size: 6947 bytes --] From: Alexandre Derumier <alexandre.derumier@groupe-cyllene.com> To: pve-devel@lists.proxmox.com Subject: [PATCH pve-storage 2/2] common: qemu_img_create: add backing_file support Date: Mon, 19 May 2025 12:23:10 +0200 Message-ID: <20250519102310.911326-3-alexandre.derumier@groupe-cyllene.com> and use it for plugin linked clone This also enable extended_l2=on, as it's mandatory for backing file preallocation. Preallocation was missing previously, so it should increase performance for linked clone now (around x5 in randwrite 4k) cluster_size is set to 128k, as it reduce qcow2 overhead (reduce disk, but also memory needed to cache metadatas) l2_extended is not enabled yet on base image, but it could help too to reduce overhead without impacting performance bench on 100G qcow2 file: fio --filename=/dev/sdb --direct=1 --rw=randwrite --bs=4k --iodepth=32 --ioengine=libaio --name=test fio --filename=/dev/sdb --direct=1 --rw=randread --bs=4k --iodepth=32 --ioengine=libaio --name=test base image: randwrite 4k: prealloc=metadata, l2_extended=off, cluster_size=64k: 20215 randread 4k: prealloc=metadata, l2_extended=off, cluster_size=64k: 22219 randwrite 4k: prealloc=metadata, l2_extended=on, cluster_size=64k: 20217 randread 4k: prealloc=metadata, l2_extended=on, cluster_size=64k: 21742 randwrite 4k: prealloc=metadata, l2_extended=on, cluster_size=128k: 21599 randread 4k: prealloc=metadata, l2_extended=on, cluster_size=128k: 22037 clone image with backing file: randwrite 4k: prealloc=metadata, l2_extended=off, cluster_size=64k: 3912 randread 4k: prealloc=metadata, l2_extended=off, cluster_size=64k: 21476 randwrite 4k: prealloc=metadata, l2_extended=on, cluster_size=64k: 20563 randread 4k: prealloc=metadata, l2_extended=on, cluster_size=64k: 22265 randwrite 4k: prealloc=metadata, l2_extended=on, cluster_size=128k: 18016 randread 4k: prealloc=metadata, l2_extended=on, cluster_size=128k: 21611 Signed-off-by: Alexandre Derumier <alexandre.derumier@groupe-cyllene.com> --- src/PVE/Storage/Common.pm | 17 +++++++++++++---- src/PVE/Storage/Plugin.pm | 5 +---- 2 files changed, 14 insertions(+), 8 deletions(-) diff --git a/src/PVE/Storage/Common.pm b/src/PVE/Storage/Common.pm index 0770d70..01a995a 100644 --- a/src/PVE/Storage/Common.pm +++ b/src/PVE/Storage/Common.pm @@ -148,14 +148,23 @@ sub preallocation_cmd_option { } sub qemu_img_create { - my ($scfg, $fmt, $size, $path) = @_; + my ($scfg, $fmt, $size, $path, $backing_path) = @_; + + die "size can't be specified if backing file is used" if $size && $backing_path; my $cmd = ['/usr/bin/qemu-img', 'create']; - my $prealloc_opt = preallocation_cmd_option($scfg, $fmt); - push @$cmd, '-o', $prealloc_opt if defined($prealloc_opt); + my $options = []; + + if($backing_path) { + push @$cmd, '-b', $backing_path, '-F', 'qcow2'; + push @$options, 'extended_l2=on','cluster_size=128k'; + }; - push @$cmd, '-f', $fmt, $path, "${size}K"; + push @$options, preallocation_cmd_option($scfg, $fmt); + push @$cmd, '-o', join(',', @$options) if @$options > 0; + push @$cmd, '-f', $fmt, $path; + push @$cmd, "${size}K" if $size; run_command($cmd, errmsg => "unable to create image"); } diff --git a/src/PVE/Storage/Plugin.pm b/src/PVE/Storage/Plugin.pm index 7030e4e..a3856ca 100644 --- a/src/PVE/Storage/Plugin.pm +++ b/src/PVE/Storage/Plugin.pm @@ -847,10 +847,7 @@ sub clone_image { eval { local $CWD = $imagedir; - my $cmd = ['/usr/bin/qemu-img', 'create', '-b', "../$basevmid/$basename", - '-F', $format, '-f', 'qcow2', $path]; - - run_command($cmd); + PVE::Storage::Common::qemu_img_create($scfg, $format, undef, $path, "../$basevmid/$basename"); }; my $err = $@; -- 2.39.5 [-- Attachment #2: Type: text/plain, Size: 160 bytes --] _______________________________________________ pve-devel mailing list pve-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel ^ permalink raw reply [flat|nested] 5+ messages in thread
[parent not found: <20250522135304.2513284-1-alexandre.derumier@groupe-cyllene.com>]
* [pve-devel] [PATCH pve-storage 2/2] common: qemu_img_create: add backing_file support [not found] <20250522135304.2513284-1-alexandre.derumier@groupe-cyllene.com> @ 2025-05-22 13:53 ` Alexandre Derumier via pve-devel 2025-05-27 8:48 ` Fiona Ebner 0 siblings, 1 reply; 5+ messages in thread From: Alexandre Derumier via pve-devel @ 2025-05-22 13:53 UTC (permalink / raw) To: pve-devel; +Cc: Alexandre Derumier [-- Attachment #1: Type: message/rfc822, Size: 6951 bytes --] From: Alexandre Derumier <alexandre.derumier@groupe-cyllene.com> To: pve-devel@lists.proxmox.com Subject: [PATCH pve-storage 2/2] common: qemu_img_create: add backing_file support Date: Thu, 22 May 2025 15:53:04 +0200 Message-ID: <20250522135304.2513284-3-alexandre.derumier@groupe-cyllene.com> and use it for plugin linked clone This also enable extended_l2=on, as it's mandatory for backing file preallocation. Preallocation was missing previously, so it should increase performance for linked clone now (around x5 in randwrite 4k) cluster_size is set to 128k, as it reduce qcow2 overhead (reduce disk, but also memory needed to cache metadatas) l2_extended is not enabled yet on base image, but it could help too to reduce overhead without impacting performance bench on 100G qcow2 file: fio --filename=/dev/sdb --direct=1 --rw=randwrite --bs=4k --iodepth=32 --ioengine=libaio --name=test fio --filename=/dev/sdb --direct=1 --rw=randread --bs=4k --iodepth=32 --ioengine=libaio --name=test base image: randwrite 4k: prealloc=metadata, l2_extended=off, cluster_size=64k: 20215 randread 4k: prealloc=metadata, l2_extended=off, cluster_size=64k: 22219 randwrite 4k: prealloc=metadata, l2_extended=on, cluster_size=64k: 20217 randread 4k: prealloc=metadata, l2_extended=on, cluster_size=64k: 21742 randwrite 4k: prealloc=metadata, l2_extended=on, cluster_size=128k: 21599 randread 4k: prealloc=metadata, l2_extended=on, cluster_size=128k: 22037 clone image with backing file: randwrite 4k: prealloc=metadata, l2_extended=off, cluster_size=64k: 3912 randread 4k: prealloc=metadata, l2_extended=off, cluster_size=64k: 21476 randwrite 4k: prealloc=metadata, l2_extended=on, cluster_size=64k: 20563 randread 4k: prealloc=metadata, l2_extended=on, cluster_size=64k: 22265 randwrite 4k: prealloc=metadata, l2_extended=on, cluster_size=128k: 18016 randread 4k: prealloc=metadata, l2_extended=on, cluster_size=128k: 21611 Signed-off-by: Alexandre Derumier <alexandre.derumier@groupe-cyllene.com> --- src/PVE/Storage/Common.pm | 17 +++++++++++++---- src/PVE/Storage/Plugin.pm | 5 +---- 2 files changed, 14 insertions(+), 8 deletions(-) diff --git a/src/PVE/Storage/Common.pm b/src/PVE/Storage/Common.pm index 0770d70..01a995a 100644 --- a/src/PVE/Storage/Common.pm +++ b/src/PVE/Storage/Common.pm @@ -148,14 +148,23 @@ sub preallocation_cmd_option { } sub qemu_img_create { - my ($scfg, $fmt, $size, $path) = @_; + my ($scfg, $fmt, $size, $path, $backing_path) = @_; + + die "size can't be specified if backing file is used" if $size && $backing_path; my $cmd = ['/usr/bin/qemu-img', 'create']; - my $prealloc_opt = preallocation_cmd_option($scfg, $fmt); - push @$cmd, '-o', $prealloc_opt if defined($prealloc_opt); + my $options = []; + + if($backing_path) { + push @$cmd, '-b', $backing_path, '-F', 'qcow2'; + push @$options, 'extended_l2=on','cluster_size=128k'; + }; - push @$cmd, '-f', $fmt, $path, "${size}K"; + push @$options, preallocation_cmd_option($scfg, $fmt); + push @$cmd, '-o', join(',', @$options) if @$options > 0; + push @$cmd, '-f', $fmt, $path; + push @$cmd, "${size}K" if $size; run_command($cmd, errmsg => "unable to create image"); } diff --git a/src/PVE/Storage/Plugin.pm b/src/PVE/Storage/Plugin.pm index 7030e4e..a3856ca 100644 --- a/src/PVE/Storage/Plugin.pm +++ b/src/PVE/Storage/Plugin.pm @@ -847,10 +847,7 @@ sub clone_image { eval { local $CWD = $imagedir; - my $cmd = ['/usr/bin/qemu-img', 'create', '-b', "../$basevmid/$basename", - '-F', $format, '-f', 'qcow2', $path]; - - run_command($cmd); + PVE::Storage::Common::qemu_img_create($scfg, $format, undef, $path, "../$basevmid/$basename"); }; my $err = $@; -- 2.39.5 [-- Attachment #2: Type: text/plain, Size: 160 bytes --] _______________________________________________ pve-devel mailing list pve-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [pve-devel] [PATCH pve-storage 2/2] common: qemu_img_create: add backing_file support 2025-05-22 13:53 ` Alexandre Derumier via pve-devel @ 2025-05-27 8:48 ` Fiona Ebner 2025-05-27 8:55 ` DERUMIER, Alexandre via pve-devel 0 siblings, 1 reply; 5+ messages in thread From: Fiona Ebner @ 2025-05-27 8:48 UTC (permalink / raw) To: Proxmox VE development discussion Am 22.05.25 um 15:53 schrieb Alexandre Derumier via pve-devel: > > and use it for plugin linked clone > > This also enable extended_l2=on, as it's mandatory for backing file > preallocation. > > Preallocation was missing previously, so it should increase performance > for linked clone now (around x5 in randwrite 4k) > > cluster_size is set to 128k, as it reduce qcow2 overhead (reduce disk, > but also memory needed to cache metadatas) > > l2_extended is not enabled yet on base image, but it could help too > to reduce overhead without impacting performance > > bench on 100G qcow2 file: > > fio --filename=/dev/sdb --direct=1 --rw=randwrite --bs=4k --iodepth=32 --ioengine=libaio --name=test > fio --filename=/dev/sdb --direct=1 --rw=randread --bs=4k --iodepth=32 --ioengine=libaio --name=test > > base image: > > randwrite 4k: prealloc=metadata, l2_extended=off, cluster_size=64k: 20215 > randread 4k: prealloc=metadata, l2_extended=off, cluster_size=64k: 22219 > randwrite 4k: prealloc=metadata, l2_extended=on, cluster_size=64k: 20217 > randread 4k: prealloc=metadata, l2_extended=on, cluster_size=64k: 21742 > randwrite 4k: prealloc=metadata, l2_extended=on, cluster_size=128k: 21599 > randread 4k: prealloc=metadata, l2_extended=on, cluster_size=128k: 22037 > > clone image with backing file: > > randwrite 4k: prealloc=metadata, l2_extended=off, cluster_size=64k: 3912 > randread 4k: prealloc=metadata, l2_extended=off, cluster_size=64k: 21476 > randwrite 4k: prealloc=metadata, l2_extended=on, cluster_size=64k: 20563 > randread 4k: prealloc=metadata, l2_extended=on, cluster_size=64k: 22265 > randwrite 4k: prealloc=metadata, l2_extended=on, cluster_size=128k: 18016 > randread 4k: prealloc=metadata, l2_extended=on, cluster_size=128k: 21611 > > Signed-off-by: Alexandre Derumier <alexandre.derumier@groupe-cyllene.com> In general, the approach is fine by me :) > --- > src/PVE/Storage/Common.pm | 17 +++++++++++++---- > src/PVE/Storage/Plugin.pm | 5 +---- > 2 files changed, 14 insertions(+), 8 deletions(-) > > diff --git a/src/PVE/Storage/Common.pm b/src/PVE/Storage/Common.pm > index 0770d70..01a995a 100644 > --- a/src/PVE/Storage/Common.pm > +++ b/src/PVE/Storage/Common.pm > @@ -148,14 +148,23 @@ sub preallocation_cmd_option { > } > > sub qemu_img_create { > - my ($scfg, $fmt, $size, $path) = @_; > + my ($scfg, $fmt, $size, $path, $backing_path) = @_; > + > + die "size can't be specified if backing file is used" if $size && $backing_path; I'd prefer having a second dedicated function qemu_img_create_qcow2_with_backing() rather than an interface where some parameters need to be undef depending on how you want to use it. It also doesn't require a format parameter, because we only allow it for qcow2. > my $cmd = ['/usr/bin/qemu-img', 'create']; > > - my $prealloc_opt = preallocation_cmd_option($scfg, $fmt); > - push @$cmd, '-o', $prealloc_opt if defined($prealloc_opt); > + my $options = []; > + > + if($backing_path) { > + push @$cmd, '-b', $backing_path, '-F', 'qcow2'; You're now using "-F qcow2" and...(continued below) > + push @$options, 'extended_l2=on','cluster_size=128k'; > + }; > > - push @$cmd, '-f', $fmt, $path, "${size}K"; > + push @$options, preallocation_cmd_option($scfg, $fmt); > + push @$cmd, '-o', join(',', @$options) if @$options > 0; > + push @$cmd, '-f', $fmt, $path; ..."-f $fmt"... > + push @$cmd, "${size}K" if $size; > > run_command($cmd, errmsg => "unable to create image"); > } > diff --git a/src/PVE/Storage/Plugin.pm b/src/PVE/Storage/Plugin.pm > index 7030e4e..a3856ca 100644 > --- a/src/PVE/Storage/Plugin.pm > +++ b/src/PVE/Storage/Plugin.pm > @@ -847,10 +847,7 @@ sub clone_image { > eval { > local $CWD = $imagedir; > > - my $cmd = ['/usr/bin/qemu-img', 'create', '-b', "../$basevmid/$basename", > - '-F', $format, '-f', 'qcow2', $path]; ...but the old command was using "-F $format -f qcow2"! > - > - run_command($cmd); > + PVE::Storage::Common::qemu_img_create($scfg, $format, undef, $path, "../$basevmid/$basename"); > }; > my $err = $@; > > -- > 2.39.5 > > _______________________________________________ pve-devel mailing list pve-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [pve-devel] [PATCH pve-storage 2/2] common: qemu_img_create: add backing_file support 2025-05-27 8:48 ` Fiona Ebner @ 2025-05-27 8:55 ` DERUMIER, Alexandre via pve-devel 0 siblings, 0 replies; 5+ messages in thread From: DERUMIER, Alexandre via pve-devel @ 2025-05-27 8:55 UTC (permalink / raw) To: pve-devel, f.ebner; +Cc: DERUMIER, Alexandre [-- Attachment #1: Type: message/rfc822, Size: 12798 bytes --] From: "DERUMIER, Alexandre" <alexandre.derumier@groupe-cyllene.com> To: "pve-devel@lists.proxmox.com" <pve-devel@lists.proxmox.com>, "f.ebner@proxmox.com" <f.ebner@proxmox.com> Subject: Re: [pve-devel] [PATCH pve-storage 2/2] common: qemu_img_create: add backing_file support Date: Tue, 27 May 2025 08:55:18 +0000 Message-ID: <8f0a3adfa53e8b131db3594ee1006a84fcd8522c.camel@groupe-cyllene.com> >>I'd prefer having a second dedicated function >>qemu_img_create_qcow2_with_backing() rather than an interface where >>some >>parameters need to be undef depending on how you want to use it. It >>also >>doesn't require a format parameter, because we only allow it for >>qcow2. ok ! > > - my $cmd = ['/usr/bin/qemu-img', 'create', '-b', > "../$basevmid/$basename", > - '-F', $format, '-f', 'qcow2', $path]; >>...but the old command was using "-F $format -f qcow2"! ah yes, sorry, thanks ! [-- Attachment #2: Type: text/plain, Size: 160 bytes --] _______________________________________________ pve-devel mailing list pve-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel ^ permalink raw reply [flat|nested] 5+ messages in thread
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2025-05-19 10:23 ` [pve-devel] [PATCH pve-storage 1/2] common: add qemu_img_create an preallocation_cmd_option Alexandre Derumier via pve-devel
2025-05-19 10:23 ` [pve-devel] [PATCH pve-storage 2/2] common: qemu_img_create: add backing_file support Alexandre Derumier via pve-devel
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2025-05-22 13:53 ` Alexandre Derumier via pve-devel
2025-05-27 8:48 ` Fiona Ebner
2025-05-27 8:55 ` DERUMIER, Alexandre via pve-devel
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