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From: Fiona Ebner <f.ebner@proxmox.com>
To: pve-devel@lists.proxmox.com
Subject: [pve-devel] [PATCH storage v3 07/13] iscsi plugin: support volume export
Date: Thu, 19 Dec 2024 11:43:10 +0100	[thread overview]
Message-ID: <20241219104316.35329-8-f.ebner@proxmox.com> (raw)
In-Reply-To: <20241219104316.35329-1-f.ebner@proxmox.com>

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
 src/PVE/Storage/ISCSIPlugin.pm | 48 ++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/src/PVE/Storage/ISCSIPlugin.pm b/src/PVE/Storage/ISCSIPlugin.pm
index 6de7610..eb70453 100644
--- a/src/PVE/Storage/ISCSIPlugin.pm
+++ b/src/PVE/Storage/ISCSIPlugin.pm
@@ -596,5 +596,53 @@ sub volume_has_feature {
     return undef;
 }
 
+sub volume_export_formats {
+    my ($class, $scfg, $storeid, $volname, $snapshot, $base_snapshot, $with_snapshots) = @_;
+
+    return () if defined($snapshot); # not supported
+    return () if defined($base_snapshot); # not supported
+    return () if $with_snapshots; # not supported
+    return ('raw+size');
+}
+
+sub volume_export {
+    my (
+	$class,
+	$scfg,
+	$storeid,
+	$fh,
+	$volname,
+	$format,
+	$snapshot,
+	$base_snapshot,
+	$with_snapshots,
+    ) = @_;
+
+    die "volume export format $format not available for $class\n" if $format ne 'raw+size';
+    die "cannot export volumes together with their snapshots in $class\n" if $with_snapshots;
+    die "cannot export an incremental stream in $class\n" if defined($base_snapshot);
+    die "cannot export a snapshot in $class\n" if defined($snapshot);
+
+    my $file = $class->filesystem_path($scfg, $volname, $snapshot);
+    my $size;
+    run_command(['/sbin/blockdev', '--getsize64', $file], outfunc => sub {
+	my ($line) = @_;
+	die "unexpected output from /sbin/blockdev: $line\n" if $line !~ /^(\d+)$/;
+	$size = int($1);
+    });
+    PVE::Storage::Plugin::write_common_header($fh, $size);
+    run_command(['dd', "if=$file", "bs=64k", "status=progress"], output => '>&'.fileno($fh));
+    return;
+}
+
+sub volume_import_formats {
+    my ($class, $scfg, $storeid, $volname, $snapshot, $base_snapshot, $with_snapshots) = @_;
+
+    return ();
+}
+
+sub volume_import {
+    die "volume import is not possible on iscsi storage\n";
+}
 
 1;
-- 
2.39.5



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  parent reply	other threads:[~2024-12-19 10:44 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-12-19 10:43 [pve-devel] [PATCH storage/container v3 00/13] import/export for shared storages Fiona Ebner
2024-12-19 10:43 ` [pve-devel] [PATCH storage v3 01/13] plugin: export/import: fix calls to path() method Fiona Ebner
2024-12-19 10:43 ` [pve-devel] [PATCH storage v3 02/13] rbd plugin: schema: document default value for 'krbd' setting Fiona Ebner
2024-12-19 10:43 ` [pve-devel] [PATCH storage v3 03/13] export: redirect stdout to avoid any unrelated messages ending up in the export stream Fiona Ebner
2024-12-19 10:43 ` [pve-devel] [PATCH storage v3 04/13] rbd plugin: factor out helper to check if volume already exists Fiona Ebner
2024-12-19 10:43 ` [pve-devel] [PATCH storage v3 05/13] rbd plugin: implement volume import/export Fiona Ebner
2024-12-19 10:43 ` [pve-devel] [PATCH storage v3 06/13] rbd plugin: improve volume exists helper Fiona Ebner
2024-12-19 10:43 ` Fiona Ebner [this message]
2024-12-19 10:43 ` [pve-devel] [PATCH storage v3 08/13] iscsi direct plugin: support volume export Fiona Ebner
2024-12-19 10:46   ` Fiona Ebner
2024-12-19 10:43 ` [pve-devel] [PATCH storage v3 09/13] common: introduce common module Fiona Ebner
2024-12-19 10:43 ` [pve-devel] [PATCH storage v3 10/13] plugins: volume import: align size up to 1KiB Fiona Ebner
2024-12-19 10:43 ` [pve-devel] [PATCH storage v3 11/13] rbd plugin: list: drop outdated error message check Fiona Ebner
2024-12-19 10:43 ` [pve-devel] [PATCH container v3 12/13] migration: allow rbd storages for remote migration Fiona Ebner
2024-12-19 10:43 ` [pve-devel] [PATCH container v3 13/13] migration: add reminder to evaluate dropping seemingly useless check for PVE 9 Fiona Ebner
2024-12-19 11:45 ` [pve-devel] partially-applied: [PATCH storage/container v3 00/13] import/export for shared storages Fabian Grünbichler
2024-12-19 12:17   ` Fiona Ebner

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