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Re: iSCSI Software Adapter

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To achieve higher performance we recommend to use Round Robin policy in iSCSI initiator. By default ESX(i) uses FixedPath policy. You can change it to RR by choosing "Manage path" option in properties of datastore or target (can be found in "Datastore" or "Storage devices" menu).

Either by default ESX(i) switches to another path every 1000 IOPS. To improve bandwidth and performance you can change this value to lower. You can do it following way:

Connect to ESX(i) with SSH or open local console, and type in

Code: Select all
esxcli nmp roundrobin setconfig --device [UUID] --iops 1 --type iops

 

or

Code: Select all
esxcli storage nmp psp roundrobin deviceconfig set -d naa.хххх -t iops -I 1

 

UUID of device you can found in "Storage adapters", while amount of IOPS 1 is the best recommended option. You can check properties of your device with following command:

Code: Select all
esxcli nmp roundrobin getconfig --device [UUID]

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