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| zfs [2015/03/24 09:48] – niziak | linux:fs:zfs [2021/03/02 12:59] – niziak | ||
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| ====== ZFS ====== | ====== ZFS ====== | ||
| - | ===== Creating ZFS dataset | + | [[https:// |
| + | |||
| + | Features: | ||
| + | * data pools (tanks) are abstraction aggregate block devices (simple, mirror, raidz, spares, etc) | ||
| + | * data set is created on data pool or another (parent) data set. | ||
| + | * whole data pool space is shared between | ||
| + | * compression | ||
| + | * block level deduplication (not usable for emails with attachment, where attachment are shifted to different offset) | ||
| + | |||
| + | OpenZFS2.0.0 (Dec 20) [[https:// | ||
| + | * Sequential resilver (rebuild only used by data portions) | ||
| + | * Persistent L2ARC cache (survives between reboots) | ||
| + | * ZSTD | ||
| + | * Redacted replication (replicate with some data excluded) | ||
| + | * FreeBSD and Linux unification | ||
| + | |||
| + | Proposed use case: | ||
| + | POOL created on encrypted LUKS block device. | ||
| < | < | ||
| + | POOL | ||
| + | |-- /filer (quota) | ||
| + | | ||
| + | | ||
| + | | ||
| + | | ||
| + | | | ||
| + | |-- /home (compression, | ||
| + | +-- /var (quota) | ||
| + | +- log (compression) | ||
| + | </ | ||
| + | |||
| + | ===== ZFS implementations ===== | ||
| + | |||
| + | ZFS-Fuse 0.7 is using old pool version 23, where [[http:// | ||
| + | [[http:// | ||
| + | |||
| + | |||
| + | |||
| + | ===== Creating ZFS dataset ===== | ||
| + | |||
| + | <code bash> | ||
| zpool create INBOX /dev/loop0 /dev/loop1 /dev/loop2 /dev/loop3 | zpool create INBOX /dev/loop0 /dev/loop1 /dev/loop2 /dev/loop3 | ||
| </ | </ | ||
| - | < | + | < |
| # zpool list | # zpool list | ||
| NAME SIZE ALLOC | NAME SIZE ALLOC | ||
| Line 13: | Line 52: | ||
| </ | </ | ||
| - | < | + | < |
| # zpool status | # zpool status | ||
| pool: INBOX | pool: INBOX | ||
| Line 32: | Line 71: | ||
| Dataset " | Dataset " | ||
| - | < | + | < |
| # zfs list | # zfs list | ||
| NAME USED AVAIL REFER MOUNTPOINT | NAME USED AVAIL REFER MOUNTPOINT | ||
| Line 156: | Line 195: | ||
| |-- | |-- | ||
| |squashfs | |squashfs | ||
| - | |||
| Line 163: | Line 201: | ||
| - | ====== References: ====== | + | |
| + | <code bash> | ||
| + | zfs get compressratio | ||
| + | </ | ||
| + | |||
| + | ===== References: ===== | ||
| + | [[http:// | ||
| + | [[https:// | ||
| [[http:// | [[http:// | ||