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Merge pull request #4882 from A1EF/zfs-it
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[zfs/it-it] Update zfs.html.markdown
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@adambard
adambard committed Apr 6, 2024
2 parents a7af37b + 147e4aa commit 49026a1
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Expand Up @@ -27,7 +27,6 @@ utilizzare ZFS insieme a RAID, poichè ZFS è fatto per gestire direttamente i d

Tipi di VDEV:

* stripe (disco singolo, senza ridondanza)
* mirror (mirror su più dischi)
* raidz
* raidz1 (parity a 1 disco, simile a RAID 5)
Expand Down Expand Up @@ -73,7 +72,7 @@ Lista delle zpool

```bash
# Crea una zpool raidz
$ zpool create bucket raidz1 gpt/zfs0 gpt/zfs1 gpt/zfs2
$ zpool create zroot raidz1 gpt/zfs0 gpt/zfs1 gpt/zfs2

# Lista delle zpool
$ zpool list
Expand Down Expand Up @@ -154,29 +153,29 @@ Azioni:
* Create
* List
* Rename
* Delete
* Delete
* Get/Set (proprietà)

Creazione dataset

```bash
# Crea un dataset
$ zfs create tank/root/data
$ zfs create zroot/root/data
$ mount | grep data
tank/root/data on /data (zfs, local, nfsv4acls)
zroot/root/data on /data (zfs, local, nfsv4acls)

# Crea un sottodataset
$ zfs create tank/root/data/stuff
$ zfs create zroot/root/data/stuff
$ mount | grep data
tank/root/data on /data (zfs, local, nfsv4acls)
tank/root/data/stuff on /data/stuff (zfs, local, nfsv4acls)
zroot/root/data on /data (zfs, local, nfsv4acls)
zroot/root/data/stuff on /data/stuff (zfs, local, nfsv4acls)


# Crea un volume
$ zfs create -V zroot/win_vm
$ zfs list zroot/win_vm
NAME USED AVAIL REFER MOUNTPOINT
tank/win_vm 4.13G 17.9G 64K -
zroot/win_vm 4.13G 17.9G 64K -
```

Lista dei dataset
Expand Down Expand Up @@ -214,28 +213,28 @@ zroot/var/tmp@daily-2015-10-15
Rinominare un dataset

```bash
$ zfs rename tank/root/home tank/root/old_home
$ zfs rename tank/root/new_home tank/root/home
$ zfs rename zroot/root/home zroot/root/old_home
$ zfs rename zroot/root/new_home zroot/root/home
```

Eliminare un dataset

```bash
# I dataset non possono essere eliminati se hanno degli snapshot
$ zfs destroy tank/root/home
$ zfs destroy zroot/root/home
```

Lettura/modifica proprietà

```bash
# Tutte le proprietà di un dataset
$ zfs get all zroot/usr/home │157 # Create Volume
NAME PROPERTY VALUE SOURCE │158 $ zfs create -V zroot/win_vm
zroot/home type filesystem - │159 $ zfs list zroot/win_vm
zroot/home creation Mon Oct 20 14:44 2014 - │160 NAME USED AVAIL REFER MOUNTPOINT
zroot/home used 11.9G - │161 tank/win_vm 4.13G 17.9G 64K -
zroot/home available 94.1G - │162 ```
zroot/home referenced 11.9G - │163
$ zfs get all zroot/usr/home
NAME PROPERTY VALUE SOURCE
zroot/home type filesystem -
zroot/home creation Mon Oct 20 14:44 2014 -
zroot/home used 11.9G -
zroot/home available 94.1G -
zroot/home referenced 11.9G -
zroot/home mounted yes -
...

Expand All @@ -245,7 +244,7 @@ NAME PROPERTY VALUE SOURCE
zroot/home compression off default

# Modifica di una proprietà
$ zfs set compression=gzip-9 mypool/lamb
$ zfs set compression=lz4 zroot/lamb

# Specifiche proprietà per tutti i dataset
$ zfs list -o name,quota,reservation
Expand Down Expand Up @@ -284,36 +283,36 @@ Creazione di uno snapshot

```bash
# Crea uno snapshot di un singolo dataset
zfs snapshot tank/home/sarlalian@now
zfs snapshot zroot/home/sarlalian@now

# Crea uno snapshot di un dataset e dei suoi sottodataset
$ zfs snapshot -r tank/home@now
$ zfs snapshot -r zroot/home@now
$ zfs list -t snapshot
NAME USED AVAIL REFER MOUNTPOINT
tank/home@now 0 - 26K -
tank/home/sarlalian@now 0 - 259M -
tank/home/alice@now 0 - 156M -
tank/home/bob@now 0 - 156M -
zroot/home@now 0 - 26K -
zroot/home/sarlalian@now 0 - 259M -
zroot/home/alice@now 0 - 156M -
zroot/home/bob@now 0 - 156M -
...
```

Eliminazione di uno snapshot

```bash
# Elimina uno snapshot
$ zfs destroy tank/home/sarlalian@now
$ zfs destroy zroot/home/sarlalian@now

# Elimina uno snapshot ricorsivamente
$ zfs destroy -r tank/home/sarlalian@now
$ zfs destroy -r zroot/home/sarlalian@now
```

Rinominare uno snapshot

```bash
$ zfs rename tank/home/sarlalian@now tank/home/sarlalian@today
$ zfs rename tank/home/sarlalian@now today
$ zfs rename zroot/home/sarlalian@now zroot/home/sarlalian@today
$ zfs rename zroot/home/sarlalian@now today

$ zfs rename -r tank/home@now @yesterday
$ zfs rename -r zroot/home@now @yesterday
```

Accedere ad uno snapshot
Expand All @@ -327,26 +326,26 @@ Invio e ricezione

```bash
# Backup di uno snapshot su un file
$ zfs send tank/home/sarlalian@now | gzip > backup_file.gz
$ zfs send zroot/home/sarlalian@now | gzip > backup_file.gz

# Invia uno snapshot ad un altro dataset
$ zfs send tank/home/sarlalian@now | zfs recv backups/home/sarlalian
$ zfs send zroot/home/sarlalian@now | zfs recv backups/home/sarlalian

# Invia uno snapshot ad un host remoto
$ zfs send tank/home/sarlalian@now | ssh root@backup_server 'zfs recv tank/home/sarlalian'
$ zfs send zroot/home/sarlalian@now | ssh root@backup_server 'zfs recv zroot/home/sarlalian'

# Invia l'intero dataset e i suoi snapshot ad un host remoto
$ zfs send -v -R tank/home@now | ssh root@backup_server 'zfs recv tank/home'
$ zfs send -v -R zroot/home@now | ssh root@backup_server 'zfs recv zroot/home'
```

Clonare gli snapshot

```bash
# Clona uno snapshot
$ zfs clone tank/home/sarlalian@now tank/home/sarlalian_new
$ zfs clone zroot/home/sarlalian@now zroot/home/sarlalian_new

# Rende il clone indipendente dallo snapshot originale
$ zfs promote tank/home/sarlalian_new
$ zfs promote zroot/home/sarlalian_new
```

### Letture aggiuntive (in inglese)
Expand Down

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