xfs/Deduplication をテンプレートにして作成
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開始行:
&color(red){とちゅう};
CentOS8
参照先[[https://strugglers.net/~andy/blog/2017/01/10/xfs-...
[[https://hooks.technology/2018/03/xfs-deduplication-with...
#code(nonumber){{
[root@localhost ~]# mkfs.xfs -L dedup -m reflink=1 /dev/n...
meta-data=/dev/nvme0n2p1 isize=512 agcount=4, ...
= sectsz=512 attr=2, pro...
= crc=1 finobt=1, s...
= reflink=1
data = bsize=4096 blocks=5242...
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0,...
log =internal log bsize=4096 blocks=2560...
= sectsz=512 sunit=0 blk...
realtime =none extsz=4096 blocks=0, r...
[root@localhost ~]#
[root@localhost ~]# echo "LABEL=dedup /data xfs defaults ...
[root@localhost ~]# mkdir /data
[root@localhost ~]# mount -a
[root@localhost ~]# df -lTh
ファイルシス タイプ サイズ 使用 残り 使用% マ...
devtmpfs devtmpfs 888M 0 888M 0% /dev
tmpfs tmpfs 904M 0 904M 0% /de...
tmpfs tmpfs 904M 18M 886M 2% /run
tmpfs tmpfs 904M 0 904M 0% /sy...
/dev/mapper/cl-root xfs 19G 5.8G 13G 32% /
/dev/nvme0n1p1 ext4 488M 133M 320M 30% /boot
tmpfs tmpfs 181M 16K 181M 1% /ru...
tmpfs tmpfs 181M 4.0K 181M 1% /ru...
/dev/nvme0n2p1 xfs 20G 176M 20G 1% /data
[root@localhost ~]#
}}
***duperemove [#k72c30f3]
[[https://github.com/markfasheh/duperemove>+https://githu...
開発環境をインストールして(yum groupinstall "Development ...
追加に「glib2-devel」「sqlite-devel」「libatomic」パッケ...
#code(nonumber){{
[root@localhost ~]# git clone https://github.com/markfash...
Cloning into 'duperemove'...
remote: Enumerating objects: 2735, done.
remote: Total 2735 (delta 0), reused 0 (delta 0), pack-re...
Receiving objects: 100% (2735/2735), 994.38 KiB | 545.00 ...
Resolving deltas: 100% (1873/1873), done.
[root@localhost ~]# cd duperemove
[root@localhost duperemove]# make ; make install
[root@localhost duperemove]# ls -l /usr/local/sbin/
合計 1248
-rwxr-xr-x. 1 root root 23240 10月 5 13:45 btrfs-extent...
-rwxr-xr-x. 1 root root 665488 10月 5 13:45 duperemove
-rwxr-xr-x. 1 root root 435968 10月 5 13:45 hashstats
-rwxr-xr-x. 1 root root 143664 10月 5 13:45 show-shared-...
[root@localhost duperemove]#
}}
***Test [#y1bef18b]
TIFFファイルを重複排除させてみた
#code(nonumber){{
[root@localhost /]# df /data/
ファイルシス 1K-ブロック 使用 使用可 使用% マウン...
/dev/nvme0n2p1 20960236 9476032 11484204 46% /data
[root@localhost /]#
}}
実際に重複排除してくれるコマンド duperemove のオプション...
#code(nonumber){{
[root@localhost ~]# duperemove
duperemove v0.12.dev
Find duplicate extents and optionally dedupe them.
Basic usage: duperemove [-r] [-d] [-h] [-v] [-A] [--hashf...
"OBJECTS" is a list of files (or directories) which we
want to find duplicate extents in. If a directory is
specified, all regular files inside of it will be scanned.
<switches>
-r Enable recursive dir traversal.
-d De-dupe the results (must run on ...
--hashfile=FILE Store hashes in this file.
-A Open files for dedupe in read-onl...
-h Print numbers in human-readable f...
-v Print extra information (verbose).
--help Prints this help text.
Please see the duperemove(8) manpage for a complete list ...
[root@localhost ~]#
}}
終了行:
&color(red){とちゅう};
CentOS8
参照先[[https://strugglers.net/~andy/blog/2017/01/10/xfs-...
[[https://hooks.technology/2018/03/xfs-deduplication-with...
#code(nonumber){{
[root@localhost ~]# mkfs.xfs -L dedup -m reflink=1 /dev/n...
meta-data=/dev/nvme0n2p1 isize=512 agcount=4, ...
= sectsz=512 attr=2, pro...
= crc=1 finobt=1, s...
= reflink=1
data = bsize=4096 blocks=5242...
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0,...
log =internal log bsize=4096 blocks=2560...
= sectsz=512 sunit=0 blk...
realtime =none extsz=4096 blocks=0, r...
[root@localhost ~]#
[root@localhost ~]# echo "LABEL=dedup /data xfs defaults ...
[root@localhost ~]# mkdir /data
[root@localhost ~]# mount -a
[root@localhost ~]# df -lTh
ファイルシス タイプ サイズ 使用 残り 使用% マ...
devtmpfs devtmpfs 888M 0 888M 0% /dev
tmpfs tmpfs 904M 0 904M 0% /de...
tmpfs tmpfs 904M 18M 886M 2% /run
tmpfs tmpfs 904M 0 904M 0% /sy...
/dev/mapper/cl-root xfs 19G 5.8G 13G 32% /
/dev/nvme0n1p1 ext4 488M 133M 320M 30% /boot
tmpfs tmpfs 181M 16K 181M 1% /ru...
tmpfs tmpfs 181M 4.0K 181M 1% /ru...
/dev/nvme0n2p1 xfs 20G 176M 20G 1% /data
[root@localhost ~]#
}}
***duperemove [#k72c30f3]
[[https://github.com/markfasheh/duperemove>+https://githu...
開発環境をインストールして(yum groupinstall "Development ...
追加に「glib2-devel」「sqlite-devel」「libatomic」パッケ...
#code(nonumber){{
[root@localhost ~]# git clone https://github.com/markfash...
Cloning into 'duperemove'...
remote: Enumerating objects: 2735, done.
remote: Total 2735 (delta 0), reused 0 (delta 0), pack-re...
Receiving objects: 100% (2735/2735), 994.38 KiB | 545.00 ...
Resolving deltas: 100% (1873/1873), done.
[root@localhost ~]# cd duperemove
[root@localhost duperemove]# make ; make install
[root@localhost duperemove]# ls -l /usr/local/sbin/
合計 1248
-rwxr-xr-x. 1 root root 23240 10月 5 13:45 btrfs-extent...
-rwxr-xr-x. 1 root root 665488 10月 5 13:45 duperemove
-rwxr-xr-x. 1 root root 435968 10月 5 13:45 hashstats
-rwxr-xr-x. 1 root root 143664 10月 5 13:45 show-shared-...
[root@localhost duperemove]#
}}
***Test [#y1bef18b]
TIFFファイルを重複排除させてみた
#code(nonumber){{
[root@localhost /]# df /data/
ファイルシス 1K-ブロック 使用 使用可 使用% マウン...
/dev/nvme0n2p1 20960236 9476032 11484204 46% /data
[root@localhost /]#
}}
実際に重複排除してくれるコマンド duperemove のオプション...
#code(nonumber){{
[root@localhost ~]# duperemove
duperemove v0.12.dev
Find duplicate extents and optionally dedupe them.
Basic usage: duperemove [-r] [-d] [-h] [-v] [-A] [--hashf...
"OBJECTS" is a list of files (or directories) which we
want to find duplicate extents in. If a directory is
specified, all regular files inside of it will be scanned.
<switches>
-r Enable recursive dir traversal.
-d De-dupe the results (must run on ...
--hashfile=FILE Store hashes in this file.
-A Open files for dedupe in read-onl...
-h Print numbers in human-readable f...
-v Print extra information (verbose).
--help Prints this help text.
Please see the duperemove(8) manpage for a complete list ...
[root@localhost ~]#
}}
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