How to set a non default zstd compression level at btrfs filesystem defragment?
# btrfs filesystem defragment -r -v -czstd:15 /
ERROR: unknown compression type zstd:15
# btrfs filesystem defragment -r -v -czstd_15 /
ERROR: unknown compression type zstd_15
# btrfs filesystem defragment -r -v -czstd15 /
ERROR: unknown compression type zstd15
The btrfs manual page doesn't give the clue on how to select a compression level:
-c[algo]
compress file contents while defragmenting. Optional argument selects the compression algorithm, zlib (default), lzo or zstd.
Currently it’s not possible to select no compression. See also section
EXAMPLES.
How to select a non-default zstd compression level to re-compress existing btrfs filesystems?
Note: btrfs filesystem defragment on snapshots might result in much larger disk space consumption:
Warning: Defragmenting with Linux kernel versions < 3.9 or ≥ 3.14-rc2
as well as with Linux stable kernel versions ≥ 3.10.31, ≥ 3.12.12 or ≥
3.13.4 will break up the ref-links of COW data (for example files copied with cp --reflink, snapshots or de-duplicated data). This may
cause considerable increase of space usage depending on the broken up
ref-links.
btrfs zstd
asked Dec 22 '17 at 11:07
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# btrfs filesystem defragment -r -v -czstd:15 /
ERROR: unknown compression type zstd:15
# btrfs filesystem defragment -r -v -czstd_15 /
ERROR: unknown compression type zstd_15
# btrfs filesystem defragment -r -v -czstd15 /
ERROR: unknown compression type zstd15
The btrfs manual page doesn't give the clue on how to select a compression level:
-c[algo]
compress file contents while defragmenting. Optional argument selects the compression algorithm, zlib (default), lzo or zstd.
Currently it’s not possible to select no compression. See also section
EXAMPLES.
How to select a non-default zstd compression level to re-compress existing btrfs filesystems?
Note: btrfs filesystem defragment on snapshots might result in much larger disk space consumption:
Warning: Defragmenting with Linux kernel versions < 3.9 or ≥ 3.14-rc2
as well as with Linux stable kernel versions ≥ 3.10.31, ≥ 3.12.12 or ≥
3.13.4 will break up the ref-links of COW data (for example files copied with cp --reflink, snapshots or de-duplicated data). This may
cause considerable increase of space usage depending on the broken up
ref-links.
btrfs zstd
asked Dec 22 '17 at 11:07
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# btrfs filesystem defragment -r -v -czstd:15 /
ERROR: unknown compression type zstd:15
# btrfs filesystem defragment -r -v -czstd_15 /
ERROR: unknown compression type zstd_15
# btrfs filesystem defragment -r -v -czstd15 /
ERROR: unknown compression type zstd15
The btrfs manual page doesn't give the clue on how to select a compression level:
-c[algo]
compress file contents while defragmenting. Optional argument selects the compression algorithm, zlib (default), lzo or zstd.
Currently it’s not possible to select no compression. See also section
EXAMPLES.
How to select a non-default zstd compression level to re-compress existing btrfs filesystems?
Note: btrfs filesystem defragment on snapshots might result in much larger disk space consumption:
Warning: Defragmenting with Linux kernel versions < 3.9 or ≥ 3.14-rc2
as well as with Linux stable kernel versions ≥ 3.10.31, ≥ 3.12.12 or ≥
3.13.4 will break up the ref-links of COW data (for example files copied with cp --reflink, snapshots or de-duplicated data). This may
cause considerable increase of space usage depending on the broken up
ref-links.
btrfs zstd
asked Dec 22 '17 at 11:07
Pro BackupPro Backup
1,99362957
# btrfs filesystem defragment -r -v -czstd:15 /
ERROR: unknown compression type zstd:15
# btrfs filesystem defragment -r -v -czstd_15 /
ERROR: unknown compression type zstd_15
# btrfs filesystem defragment -r -v -czstd15 /
ERROR: unknown compression type zstd15
The btrfs manual page doesn't give the clue on how to select a compression level:
-c[algo]
compress file contents while defragmenting. Optional argument selects the compression algorithm, zlib (default), lzo or zstd.
Currently it’s not possible to select no compression. See also section
EXAMPLES.
How to select a non-default zstd compression level to re-compress existing btrfs filesystems?
Note: btrfs filesystem defragment on snapshots might result in much larger disk space consumption:
Warning: Defragmenting with Linux kernel versions < 3.9 or ≥ 3.14-rc2
as well as with Linux stable kernel versions ≥ 3.10.31, ≥ 3.12.12 or ≥
3.13.4 will break up the ref-links of COW data (for example files copied with cp --reflink, snapshots or de-duplicated data). This may
cause considerable increase of space usage depending on the broken up
ref-links.
btrfs zstd
btrfs zstd
asked Dec 22 '17 at 11:07
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asked Dec 22 '17 at 11:07
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edited Dec 28 '17 at 11:19
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asked Dec 22 '17 at 11:07
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asked Dec 22 '17 at 11:07
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asked Dec 22 '17 at 11:07
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2 Answers
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Not yet (December 28th, 2017) possible:
Q: Can I set the compression level?
A: …, ZSTD level support is planned.
source: https://btrfs.wiki.kernel.org/index.php/Compression
answered Dec 22 '17 at 11:49
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Try:
$> sudo mount -o remount,compress=zlib:9,compress=zstd /
After that command 'findmnt' displays 'compress=zstd:9' mount option :)
answered yesterday
Alexander BaranovAlexander Baranov
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2 Answers
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2 Answers
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Not yet (December 28th, 2017) possible:
Q: Can I set the compression level?
A: …, ZSTD level support is planned.
source: https://btrfs.wiki.kernel.org/index.php/Compression
answered Dec 22 '17 at 11:49
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add a comment |
Not yet (December 28th, 2017) possible:
Q: Can I set the compression level?
A: …, ZSTD level support is planned.
source: https://btrfs.wiki.kernel.org/index.php/Compression
answered Dec 22 '17 at 11:49
Pro BackupPro Backup
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add a comment |
Not yet (December 28th, 2017) possible:
Q: Can I set the compression level?
A: …, ZSTD level support is planned.
source: https://btrfs.wiki.kernel.org/index.php/Compression
answered Dec 22 '17 at 11:49
Pro BackupPro Backup
1,99362957
Not yet (December 28th, 2017) possible:
Q: Can I set the compression level?
A: …, ZSTD level support is planned.
source: https://btrfs.wiki.kernel.org/index.php/Compression
answered Dec 22 '17 at 11:49
Pro BackupPro Backup
1,99362957
edited Dec 28 '17 at 10:57
answered Dec 22 '17 at 11:49
Pro BackupPro Backup
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answered Dec 22 '17 at 11:49
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answered Dec 22 '17 at 11:49
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1,99362957
add a comment |
add a comment |
Try:
$> sudo mount -o remount,compress=zlib:9,compress=zstd /
After that command 'findmnt' displays 'compress=zstd:9' mount option :)
answered yesterday
Alexander BaranovAlexander Baranov
111
New contributor
Alexander Baranov is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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add a comment |
Try:
$> sudo mount -o remount,compress=zlib:9,compress=zstd /
After that command 'findmnt' displays 'compress=zstd:9' mount option :)
answered yesterday
Alexander BaranovAlexander Baranov
111
New contributor
Alexander Baranov is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
Try:
$> sudo mount -o remount,compress=zlib:9,compress=zstd /
After that command 'findmnt' displays 'compress=zstd:9' mount option :)
answered yesterday
Alexander BaranovAlexander Baranov
111
New contributor
Alexander Baranov is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Try:
$> sudo mount -o remount,compress=zlib:9,compress=zstd /
After that command 'findmnt' displays 'compress=zstd:9' mount option :)
answered yesterday
Alexander BaranovAlexander Baranov
111
New contributor
Alexander Baranov is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered yesterday
Alexander BaranovAlexander Baranov
111
New contributor
Alexander Baranov is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered yesterday
Alexander BaranovAlexander Baranov
111
answered yesterday
Alexander BaranovAlexander Baranov
111
111
New contributor
Alexander Baranov is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Alexander Baranov is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Alexander Baranov is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
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