ZFS+iSCSI = le SAN pas cher
De OpenWikiBSD.
C'est le nouveau et terrible gestionnaire de FS + Gestionnaire de volume de SUN.
Voir Système_de_fichiers_ZFS pour la partie relative à ZFS
Installation
# svcadm enable iscsitgt
# svcs iscsitgt
STATE STIME FMRI
online 14:20:11 svc:/system/iscsitgt:default
# iostat -En
# zpool create tank raidz2 c0t1d0 c0t2d0 c0t3d0 c0t4d0 c0t5d0 c0t6d0
# zpool status
pool : tank
état : ONLINE
purger : aucun requis
configuration :
NAME STATE READ WRITE CKSUM
tank ONLINE 0 0 0
raidz2 ONLINE 0 0 0
c0t1d0 ONLINE 0 0 0
c0t2d0 ONLINE 0 0 0
c0t3d0 ONLINE 0 0 0
c0t4d0 ONLINE 0 0 0
c0t5d0 ONLINE 0 0 0
c0t6d0 ONLINE 0 0 0
erreurs : aucune erreur de données connue
# zpool list
NAME SIZE USED AVAIL CAP HEALTH ALTROOT
tank 816G 230K 816G 0% ONLINE -
# zfs list
NAME USED AVAIL REFER MOUNTPOINT
tank 144K 535G 36,0K /tank
Création du volume:
# zfs create tank/iSCSI
# zfs list
NAME USED AVAIL REFER MOUNTPOINT
tank 195K 535G 36,0K /tank
tank/iSCSI 36,0K 535G 36,0K /tank/iSCSI
# zfs set shareiscsi=on tank/iSCSI
# zfs set compression=on tank.iSCSI
Inutile : # iscsitadm modify admin --base-directory /etc/iscsi/config
For Solaris ZFS volumes, use the zfs set command and specify the volume name mypool/myvol for the target. For other backing storage, such as a file or disk slice, use the iscsitadm command.
NON # Création target iscsi avec son LUN : NON # iscsiadm add static-config iqn.1986-03.com.sun:02:30754ba8-14b7-61bd-c14c-d776e5375c7f.itarget,172.12.0.44:3260
- iscsiadm list static-config
Static Configuration Target: iqn.1986-03.com.sun:02:30754ba8-14b7-61bd-c14c-d776e5375c7f.itarget,172.12.0.44:326
- iscsiadm modify discovery -s enable
- devfsadm -i iscsi -v
man zfs.... ca peut aider..
# zfs create -V 250G SAN/ESX1
# zfs set shareiscsi=on SAN/ESX1
# zfs set compression=on SAN/ESX1
# iscsitadm list target
Target: SAN/ESX1
iSCSI Name: iqn.1986-03.com.sun:02:82551545-fd63-46ca-e694-beb8b2e39d9c
Connections: 0
Tests
Voilà ! SI j'ai bien compris, le volume iSCSI est OK, et en ligne !
On teste :
- Sous Linux :
apt-get install open-iscsi sudo iscsiadm --mode discovery --type sendtargets --portal hadron [sudo] password for phil: IP1:3260,1 iqn.1986-03.com.sun:02:82555-fd63-46ca-e69..... IP2:3260,1 iqn.1986-03.com.sun:02:82555-fd63-46ca-e69.....
- Sous Solaris
# iscsiadm list target
Target: iqn.1986-03.com.sun:02:4ba8-14b7-61bd-c14c-d...itarget
Alias: -
ISID: 40002a00
Connections: 0
# iscsiadm list initiator-node
Initiator node name: iqn.1986-03.com.sun:01:badadcefffff.4a327a8f
Initiator node alias: -
Login Parameters (Default/Configured):
Header Digest: NONE/-
Data Digest: NONE/-
Authentication Type: NONE
RADIUS Server: NONE
RADIUS access: unknown
# iscsiadm list discovery
Discovery:
Static: enabled
Send Targets: disabled
iSNS: disabled
- iscsiadm add discovery-address 172.12.0.44
- iscsiadm list target
Target: iqn.1986-03.com.sun:02:30754ba8-14b7-61bd-c14c-d776e5375c7f.itarget
Alias: -
ISID: 4000002a0000
Connections: 0
On reprend. Il FAUT une target locale !
iscsitadm create target --lun 0 --alias iTgt --size 400G iSCSI1
- iscsitadm list target -v
Target: iscsi1
iSCSI Name: iqn.1986-03.com.sun:02:e1fcba0d-8b85-c14e-9e42-acbc9afca578.iTgt
Alias: iTgt
Connections: 0
ACL list:
TPGT list:
LUN information:
LUN: 0
GUID: 600144f04a40d55500001e682f026400
VID: SUN
PID: SOLARIS
Type: disk
Size: 400G
Status: unknown
Doc : TB/1
ZFS :
