HP EVA P6550 HP P6300/P6500 EVA User Guide (5697-2486, September 2013) - Page 121

Modify target parameter MaxRecvDataSegLen

Page 121 highlights

To enable iSCSI target discovery: 1. Enable Sendtargets discovery: # iscsiadm modify discovery -t enable 2. Verify SendTargets setting is enabled: # iscsiadm list discovery 3. The iSCSI or iSCSI/FCoE module has multiple iSCSI ports available to the Solaris iSCSI initiator. To discover the targets available, enter the following command for each iSCSI port IP address that the iSCSI initiator will access: #iscsiadm add discovery-address 'iscsi port IP address' 4. Verify discovery address entries: #iscsiadm list discovery-address 5. Once discovery addresses are entered, the Solaris initiator polls each address for all targets available. To list the discovered targets available to the initiator, enter the following command: #iscsiadm list target Example: #iscsiadm list target Target: iqn.2004-09.com.hp.fcgw.mez50.2.01.50014380025da539 Alias: TPGT: 0 ISID: 4000002a0000 Connections: 1 Target: iqn.2004-09.com.hp.fcgw.mez50.1.01.50014380025da538 Alias: TPGT: 0 ISID: 4000002a0000 Connections: 1 NOTE: The iSCSI Initiator must discover all targets presented by each iSCSI or iSCSI/FCoE module's iSCSI port that will be used in a multipath configuration. 6. Create the iSCSI device links for the local system: # devfsadm -i iscsi Modify target parameter MaxRecvDataSegLen Oracle recommends setting the Maximum Receive Data Segment Length to 655536 bytes for each iSCSI discovered target. Refer to the following URL for more information: http://wikis.sun.com/ display/StorageDev/iSCSI+Features+Related+to+RFC+3720+Parameters. To modify target parameter MaxRecvDataSegLen: 1. List all iSCSI targets: #iscsiadm list target-param 2. Modify maxrecvdataseglen to 65536 for each target: #iscsiadm modify target-param -p maxrecvdataseglen=65536 'target iqn' 3. Verify target setting using the example below. Example: # iscsiadm list target-param Target: iqn.2004-09.com.hp.fcgw.mez50.1.01.50014380025da538 #iscsiadm modify target-param -p maxrecvdataseglen=65536 iqn.2004-09.com.hp.fcgw.mez50. 1.01.50014380025da538 # iscsiadm list target-param -v iqn.2004-09.com.hp.fcgw.mez50.1.01.50014380025da538 Set up the iSCSI Initiator 121

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To enable iSCSI target discovery:
1.
Enable Sendtargets discovery:
# iscsiadm modify discovery
t enable
2.
Verify SendTargets setting is enabled:
# iscsiadm list discovery
3.
The iSCSI or iSCSI/FCoE module has multiple iSCSI ports available to the Solaris iSCSI initiator.
To discover the targets available, enter the following command for each iSCSI port IP address
that the iSCSI initiator will access:
#iscsiadm add discovery-address
iscsi port IP address
4.
Verify discovery address entries:
#iscsiadm list discovery-address
5.
Once discovery addresses are entered, the Solaris initiator polls each address for all targets
available. To list the discovered targets available to the initiator, enter the following command:
#iscsiadm list target
Example:
#iscsiadm list target
Target: iqn.2004-09.com.hp.fcgw.mez50.2.01.50014380025da539
Alias: -
TPGT: 0
ISID: 4000002a0000
Connections: 1
Target: iqn.2004-09.com.hp.fcgw.mez50.1.01.50014380025da538
Alias: -
TPGT: 0
ISID: 4000002a0000
Connections: 1
NOTE:
The iSCSI Initiator must discover all targets presented by each iSCSI or iSCSI/FCoE
module's iSCSI port that will be used in a multipath configuration.
6.
Create the iSCSI device links for the local system:
# devfsadm -i iscsi
Modify target parameter
MaxRecvDataSegLen
Oracle recommends setting the Maximum Receive Data Segment Length to 655536 bytes for each
iSCSI discovered target. Refer to the following URL for more information:
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t
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.
To modify target parameter
MaxRecvDataSegLen
:
1.
List all iSCSI targets:
#iscsiadm list target-param
2.
Modify maxrecvdataseglen to 65536 for each target:
#iscsiadm modify target-param -p maxrecvdataseglen=65536
target
iqn
3.
Verify target setting using the example below.
Example:
# iscsiadm list target-param
Target: iqn.2004-09.com.hp.fcgw.mez50.1.01.50014380025da538
#iscsiadm modify target-param
p maxrecvdataseglen=65536 iqn.2004-09.com.hp.fcgw.mez50.
1.01.50014380025da538
# iscsiadm list target-param -v iqn.2004-09.com.hp.fcgw.mez50.1.01.50014380025da538
Set up the iSCSI Initiator
121