Différences
Ci-dessous, les différences entre deux révisions de la page.
|
user:domenge:freenas [2020/12/03 08:57] domenge créée |
user:domenge:freenas [2020/12/03 09:04] (Version actuelle) domenge |
||
|---|---|---|---|
| Ligne 1: | Ligne 1: | ||
| - | ====== Ajout de disque dur sur FreeNAS avec ZFS ====== | + | ====== FreeNAS ====== |
| - | <note warning> | + | |
| - | Il est possible d'agrandir la taille d'un pool ZFS mais pas de la diminuer. Nous utiliserons pour ce faire la commande zpool add, celle-ci a une contrepartie zpool remove qui ne s'applique que dans de rares cas. | + | |
| - | Nous considérons que l'agrandissement d'un pool par un disque non redondant comme dans notre cas est un agrandissement définitif.</note> | ||
| - | |||
| - | ===== Contexte ===== | ||
| - | |||
| - | Soit une machine dont le système d'exploitation est installé sur un système de fichier ZFS, nous allons ajouter un disque dur et étendre son espace de stockage. Il s'agit d'un disque non redondant. | ||
| - | |||
| - | La commande <code>zpool status</code> donnera : | ||
| - | <code> | ||
| - | [dc@vertigo] ~% zpool status | ||
| - | pool: tank | ||
| - | state: ONLINE | ||
| - | status: Some supported features are not enabled on the pool. The pool can | ||
| - | still be used, but some features are unavailable. | ||
| - | action: Enable all features using 'zpool upgrade'. Once this is done, | ||
| - | the pool may no longer be accessible by software that does not support | ||
| - | the features. See zpool-features(7) for details. | ||
| - | scan: scrub repaired 0 in 0h38m with 0 errors on Thu Oct 8 01:38:51 2015 | ||
| - | config: | ||
| - | |||
| - | NAME STATE READ WRITE CKSUM | ||
| - | tank ONLINE 0 0 0 | ||
| - | ada0p2 ONLINE 0 0 0 | ||
| - | |||
| - | errors: No known data errors | ||
| - | </code> | ||
| - | On constate que le pool tank est bien connecté au vdev ada0p2. | ||
| - | |||
| - | On branche un disque dur amovible par un câble usb. | ||
| - | |||
| - | La commande <code>dmesg</code> retourne ; | ||
| - | <code> | ||
| - | umass0: <MSC Bulk-Only Transfer> on usbus2 | ||
| - | umass0: SCSI over Bulk-Only; quirks = 0x4100 | ||
| - | umass0:4:0:-1: Attached to scbus4 | ||
| - | da0 at umass-sim0 bus 0 scbus4 target 0 lun 0 | ||
| - | da0: <MAXTOR S TM3750330AS > Fixed Direct Access SCSI-2 device | ||
| - | da0: Serial Number 502CFFFFFFFF | ||
| - | da0: 40.000MB/s transfers | ||
| - | da0: 715404MB (1465149168 512 byte sectors: 255H 63S/T 91201C) | ||
| - | da0: quirks=0x2<NO_6_BYTE> | ||
| - | </code> | ||
| - | le disque est reconnu comme le vdev da0 | ||
| - | ===== Commande d'ajout ===== | ||
| - | |||
| - | La commande <code>zpool add tank da0</code> permet d'agrandir l'espace de stockage du pool " tank ". Attention cette commande dans le cas d'un disque utilisé comme un | ||
| - | <code> | ||
| - | [dc@vertigo] ~% sudo zpool add tank da0 | ||
| - | </code> | ||
| - | |||
| - | La commande <code>zpool</code> status retournera alors : | ||
| - | <code> | ||
| - | [dc@vertigo] ~% zpool status | ||
| - | pool: tank | ||
| - | state: ONLINE | ||
| - | status: Some supported features are not enabled on the pool. The pool can | ||
| - | still be used, but some features are unavailable. | ||
| - | action: Enable all features using 'zpool upgrade'. Once this is done, | ||
| - | the pool may no longer be accessible by software that does not support | ||
| - | the features. See zpool-features(7) for details. | ||
| - | scan: scrub repaired 0 in 0h38m with 0 errors on Thu Oct 8 01:38:51 2015 | ||
| - | config: | ||
| - | |||
| - | NAME STATE READ WRITE CKSUM | ||
| - | tank ONLINE 0 0 0 | ||
| - | ada0p2 ONLINE 0 0 0 | ||
| - | da0 ONLINE 0 0 0 | ||
| - | |||
| - | errors: No known data errors | ||
| - | </code> | ||
| - | |||
| - | Le disque da0 a bien été ajouté au pool "tank". La commande <code>df -H</code> retourne : | ||
| - | <code> | ||
| - | [dc@vertigo] ~% df -H | ||
| - | Filesystem Size Used Avail Capacity Mounted on | ||
| - | tank/ROOT/10.1-RELEASE-p27-up-20151102_084225 757G 14G 742G 2% / | ||
| - | devfs 1.0k 1.0k 0B 100% /dev | ||
| - | procfs 4.1k 4.1k 0B 100% /proc | ||
| - | linprocfs 4.1k 4.1k 0B 100% /compat/linux/proc | ||
| - | tank/tmp 742G 3.4M 742G 0% /tmp | ||
| - | tank/usr/home 744G 1.7G 742G 0% /usr/home | ||
| - | tank/usr/home/admin 742G 21M 742G 0% /usr/home/admin | ||
| - | tank/usr/home/dc 772G 29G 742G 4% /usr/home/dc | ||
| - | tank/usr/home/domenge 742G 26k 742G 0% /usr/home/domenge | ||
| - | tank/usr/home/solr 743G 255M 742G 0% /usr/home/solr | ||
| - | tank/usr/jails 742G 35k 742G 0% /usr/jails | ||
| - | tank/usr/jails/.warden-template-10.1-RELEASE-amd64 743G 196M 742G 0% /usr/jails/.warden-template-10.1-RELEASE-amd64 | ||
| - | tank/usr/jails/gabia 743G 227M 742G 0% /usr/jails/gabia | ||
| - | tank/usr/jails/test 742G 3.0M 742G 0% /usr/jails/test | ||
| - | tank/usr/obj 742G 26k 742G 0% /usr/obj | ||
| - | tank/usr/ports 742G 26k 742G 0% /usr/ports | ||
| - | tank/usr/src 742G 26k 742G 0% /usr/src | ||
| - | tank/var/audit 742G 28k 742G 0% /var/audit | ||
| - | tank/var/log 742G 1.7M 742G 0% /var/log | ||
| - | tank/var/tmp 742G 56M 742G 0% /var/tmp | ||
| - | map -hosts 0B 0B 0B 100% /net | ||
| - | /dev/fuse 0B 0B 0B 100% /usr/home/dc/.gvfs | ||
| - | nas 10G 197k 10G 0% /media/nas | ||
| - | </code> | ||
| - | |||
| - | ===== zpool -h ===== | ||
| - | |||
| - | |||
| - | création / destruction du pool | ||
| - | |||
| - | <code> | ||
| - | create [-fnd] [-o property=value] ... | ||
| - | [-O file-system-property=value] ... | ||
| - | [-m mountpoint] [-R root] <pool> <vdev> ... | ||
| - | destroy [-f] <pool> </code> | ||
| - | |||
| - | ajout / retrait d'un vdev sous certaines conditions | ||
| - | <code> | ||
| - | add [-fn] <pool> <vdev> ... | ||
| - | remove <pool> <device> ... | ||
| - | |||
| - | labelclear [-f] <vdev> | ||
| - | </code> | ||
| - | |||
| - | supervision | ||
| - | <code> | ||
| - | list [-Hpv] [-o property[,...]] [-T d|u] [pool] ... [interval [count]] | ||
| - | iostat [-v] [-T d|u] [pool] ... [interval [count]] | ||
| - | status [-vx] [-T d|u] [pool] ... [interval [count]] | ||
| - | |||
| - | online [-e] <pool> <device> ... | ||
| - | offline [-t] <pool> <device> ... | ||
| - | clear [-nF] <pool> [device] | ||
| - | reopen <pool> | ||
| - | |||
| - | attach [-f] <pool> <device> <new-device> | ||
| - | detach <pool> <device> | ||
| - | replace [-f] <pool> <device> [new-device] | ||
| - | split [-n] [-R altroot] [-o mntopts] | ||
| - | [-o property=value] <pool> <newpool> [<device> ...] | ||
| - | </code> | ||
| - | maintenance / vérification | ||
| - | <code> | ||
| - | scrub [-s] <pool> ... | ||
| - | </code> | ||
| - | |||
| - | déplacement / changement de machine, la commande export <pool> met le pool disponible pour un déplacement. La commande import retrouve le pôol sur le vdev déplacé et reconstitue le pool et le rend accessible. | ||
| - | <code> | ||
| - | import [-d dir] [-D] | ||
| - | import [-d dir | -c cachefile] [-F [-n]] <pool | id> | ||
| - | import [-o mntopts] [-o property=value] ... | ||
| - | [-d dir | -c cachefile] [-D] [-f] [-m] [-N] [-R root] [-F [-n]] -a | ||
| - | import [-o mntopts] [-o property=value] ... | ||
| - | [-d dir | -c cachefile] [-D] [-f] [-m] [-N] [-R root] [-F [-n]] | ||
| - | <pool | id> [newpool] | ||
| - | export [-f] <pool> ... | ||
| - | </code> | ||
| - | |||
| - | mise à jour de la version de ZFS | ||
| - | |||
| - | <code> | ||
| - | upgrade [-v] | ||
| - | upgrade [-V version] <-a | pool ...> | ||
| - | reguid <pool> | ||
| - | </code> | ||
| - | historique des commandes sur le pool (certaines sont automatiques) | ||
| - | <code> | ||
| - | history [-il] [<pool>] ... | ||
| - | </code> | ||
| - | |||
| - | configuration des options (quotas...) et tuning | ||
| - | |||
| - | <code> | ||
| - | get [-Hp] [-o "all" | field[,...]] <"all" | property[,...]> <pool> ... | ||
| - | set <property=value> <pool> | ||
| - | </code> | ||
