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开启“iSCSI target server”系统服务
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当 iSCSI 卷创建完成后，接下来是开启“iSCSI target server”系统服务。
点击“Services”菜单，在右侧的“Services section”区域选择“Manage Services”。
然后将系统服务列表中的“iSCSI target server”设置为“Enabled”状态，
从而使得系统能够对外提供基于 iSCSI 协议的虚拟存储服务。
# netstat -nltu | egrep '3260|860'
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tcp 0 0 0.0.0.0:3260 0.0.0.0:* LISTEN
tcp 0 0 :::3260 :::* LISTEN
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Note: waiting 1 minute, the iSCSI target service will start automatically.
# lsof -P -n | grep 3260
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ietd 4656 root 8u IPv6 17294 TCP *:3260 (LISTEN)
ietd 4656 root 9u IPv4 17295 TCP *:3260 (LISTEN)
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# /etc/init.d/iscsi-target status
# /etc/init.d/iscsi-scst status
# cat /etc/iscsi/iscsid.conf | grep -v ^# | grep .
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node.startup = manual
node.session.timeo.replacement_timeout = 120
node.conn[0].timeo.login_timeout = 15
node.conn[0].timeo.logout_timeout = 15
node.conn[0].timeo.noop_out_interval = 5
node.conn[0].timeo.noop_out_timeout = 5
node.session.err_timeo.abort_timeout = 15
node.session.err_timeo.lu_reset_timeout = 20
node.session.initial_login_retry_max = 8
node.session.cmds_max = 128
node.session.queue_depth = 32
node.session.xmit_thread_priority = -20
node.session.iscsi.InitialR2T = No
node.session.iscsi.ImmediateData = Yes
node.session.iscsi.FirstBurstLength = 262144
node.session.iscsi.MaxBurstLength = 16776192
node.conn[0].iscsi.MaxRecvDataSegmentLength = 262144
discovery.sendtargets.iscsi.MaxRecvDataSegmentLength = 32768
node.session.iscsi.FastAbort = Yes
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# cat /etc/iscsi/iscsid.conf | grep -v ^# | grep .
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node.startup = manual
node.session.timeo.replacement_timeout = 120
node.conn[0].timeo.login_timeout = 15
node.conn[0].timeo.logout_timeout = 15
node.conn[0].timeo.noop_out_interval = 5
node.conn[0].timeo.noop_out_timeout = 5
node.session.err_timeo.abort_timeout = 15
node.session.err_timeo.lu_reset_timeout = 20
node.session.initial_login_retry_max = 8
node.session.cmds_max = 128
node.session.queue_depth = 32
node.session.xmit_thread_priority = -20
node.session.iscsi.InitialR2T = No
node.session.iscsi.ImmediateData = Yes
node.session.iscsi.FirstBurstLength = 262144
node.session.iscsi.MaxBurstLength = 16776192
node.conn[0].iscsi.MaxRecvDataSegmentLength = 262144
discovery.sendtargets.iscsi.MaxRecvDataSegmentLength = 32768
node.session.iscsi.FastAbort = Yes
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