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Colton Fussy 2025-02-17 16:03:40 -06:00 committed by GitHub
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1
README.md
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@ -101,6 +101,7 @@ You can print a help message by running the script without any parameters:
| `-c`<br>`--checksum` | Whether to compare attributes and content of the copied file using an **MD5** checksum. Technically this is a redundent check and consumes a lot of resources, so think twice. | `true` |
| `-p`<br>`--passes` | The maximum number of rebalance passes per file. Setting this to infinity by using a value `<= 0` might improve performance when rebalancing a lot of small files. | `1` |
| `--skip-hardlinks` | Skip rebalancing hardlinked files, since it will only create duplicate data. | `false` |
| `-s`<br>`--size` | Filter files to be rebalanced based on size. This value will be passed directly to `find`, so refer to your implementation's documentation for exact details. | `+-1` |
### Example

14
zfs-inplace-rebalancing.sh
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@ -205,6 +205,7 @@ function rebalance() {
checksum_flag='true'
skip_hardlinks_flag='false'
passes_flag='1'
size_flag='+-1'
if [[ "$#" -eq 0 ]]; then
print_usage
@ -237,6 +238,10 @@ while true; do
passes_flag=$2
shift 2
;;
-s | --size)
size_flag="$2"
shift 2
;;
*)
break
;;
@ -252,12 +257,13 @@ color_echo "$Cyan" " Path: ${root_path}"
color_echo "$Cyan" " Rebalancing Passes: ${passes_flag}"
color_echo "$Cyan" " Use Checksum: ${checksum_flag}"
color_echo "$Cyan" " Skip Hardlinks: ${skip_hardlinks_flag}"
color_echo "$Cyan" " Size: ${size_flag}"
# count files
if [[ "${skip_hardlinks_flag}" == "true"* ]]; then
file_count=$(find "${root_path}" -type f -links 1 | wc -l)
file_count=$(find "${root_path}" -type f -links 1 -size "${size_flag}" | wc -l)
else
file_count=$(find "${root_path}" -type f | wc -l)
file_count=$(find "${root_path}" -type f -size "${size_flag}" | wc -l)
fi
color_echo "$Cyan" " File count: ${file_count}"
@ -270,9 +276,9 @@ fi
# recursively scan through files and execute "rebalance" procedure
# in the case of --skip-hardlinks, only find files with links == 1
if [[ "${skip_hardlinks_flag}" == "true"* ]]; then
find "$root_path" -type f -links 1 -print0 | while IFS= read -r -d '' file; do rebalance "$file"; done
find "$root_path" -type f -links 1 -size "$size_flag" -print0 | while IFS= read -r -d '' file; do rebalance "$file"; done
else
find "$root_path" -type f -print0 | while IFS= read -r -d '' file; do rebalance "$file"; done
find "$root_path" -type f -size "$size_flag" -print0 | while IFS= read -r -d '' file; do rebalance "$file"; done
fi
echo ""