ISCSI (Internet SCSI) es un mecanismo para compartir dispositivos pero a nivel de hardware. En otras palabras, se monta un disco por la red pero como si fuera SCSI.
Kernel 2.6 preferiblemente
1. Descargue el paquete, descomprima, compile e instale iscsitarget-0.4.15.tar.gz
2. Edite el archivo de configuracion /etc/ietd.conf
He aqui el gran problema .. realmente . no mucho .. se anexa un ejemplo, en el cual se comparte una particion y no se usa contraseña.
3. Confirme que levante al inicio iscsi-target
** Si quiere configurar con FreeNAS lo mejor .. http://doc.freenas.org/index.php/ISCSI
yum install iscsi-initiator-utils
apt-get install open-iscsi
iscsiadm -m discovery -t sendtargets -p 192.168.8.212 ( puede usar tambien 192.168.8.212:3260)
/etc/init.d/iscsi restart
fdisk -l
tail -f /var/log/messages
Debe presentarse como un disco comun y corriente. Se puede particionar, formatear y todo.
/dev/sdb1 /mnt/iscsi ext3 _netdev 0 0
mount -a
Aunque como es dinamico es chevere usar LABEL=..
Mire dmesg
-
- Servidor http://iscsitarget.sourceforge.net/ –
- Cliente http://www.open-iscsi.org/ –
- http://www.cyberciti.biz/tips/rhel-centos-fedora-linux-iscsi-howto.html –
- http://fedoranews.org/mediawiki/index.php/Going_Enterprise_-_setup_your_FC4_iSCSI_target_in_5_minutes –
-
FIN
==============================================================# Example iscsi target configuration ## Everything until the first target definition belongs# to the global configuration.# Right now this is only the user configuration used# during discovery sessions. "IncomingUser" specifies credentials the# initiator has to provide - several of these are supported. If mutual# CHAP shall be employed, "OutgoingUser" specifies the user/pass# combination the target will provide - only one is supported.# Leave them alone (keep them commented out) if you don't want to use# authentication for discovery sessions. #iSNSServer 192.168.1.16#iSNSAccessControl No #IncomingUser joe secret #OutgoingUser jack 12charsecret # Targets definitions start with "Target" and the target name.# The target name must be a globally unique name, the iSCSI# standard defines the "iSCSI Qualified Name" as follows:# # iqn.yyyy-mm.<reversed domain name>[:identifier]# # "yyyy-mm" is the date at which the domain is valid and the identifier# is freely selectable. For further details please check the iSCSI spec. Target iqn.2008-01.com.colombiamovil:dk1 # Users, who can access this target. The same rules as for discovery # users apply here. # Leave them alone if you don't want to use authentication. #IncomingUser joe secret #OutgoingUser jim 12charpasswd # Logical Unit definition # You must define one logical unit at least. # Block devices, regular files, LVM, and RAID can be offered # to the initiators as a block device. #Lun 0 Path=/dev/sdc,Type=fileio Lun 0 Path=/dev/sda3,Type=fileio # Alias name for this target # Alias Test # various iSCSI parameters # (not all are used right now, see also iSCSI spec for details) # MaxConnections 1 InitialR2T Yes ImmediateData No MaxRecvDataSegmentLength 8192 MaxXmitDataSegmentLength 8192 MaxBurstLength 262144 FirstBurstLength 65536 DefaultTime2Wait 2 DefaultTime2Retain 20 MaxOutstandingR2T 8 DataPDUInOrder Yes DataSequenceInOrder Yes ErrorRecoveryLevel 0 HeaderDigest CRC32C,None DataDigest CRC32C,None # various target parameters Wthreads 8
27-Diciembre-2007J.E.Gomez v1.0 Primera version
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