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OceanStor UltraPath for vSphere 21.3.0 User Guide 03

This document covers the functions, features, installation, configuration, upgrade, uninstallation, maintenance, troubleshooting, and FAQs of OceanStor UltraPath for vSphere (UltraPath forvSphere). UltraPath for vSphere is the multipathing software developed by HuaweiTechnologies Co., Ltd (Huawei for short). The document aims at helping users to be fully familiar with UltraPath for vSphere and its use.
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How to Set Timeout Parameters of the iSCSI Initiator

How to Set Timeout Parameters of the iSCSI Initiator

This section describes how to set timeout parameters of the iSCSI initiator by modifying the values of NoopOutInterval, NoopOutTimeout, and RecoveryTimeout.

Procedure

  1. Execute the esxcfg-scsidevs -a command to check the iSCSI initiator name. As shown in the following figure, the iSCSI initiator name is vnhba33.

    ~ # esxcfg-scsidevs -a 
    vmhba0  mptsas            link-n/a  sas.5842b2b049c36300                    (0:3:0.0) LSI Logic / Symbios Logic Dell SAS 6/iR Integrated 
    vmhba1  ata_piix          link-n/a  sata.vmhba1                             (0:0:31.2) Intel Corporation 2 port SATA IDE Controller (ICH9) 
    vmhba32 ata_piix          link-n/a  sata.vmhba32                            (0:0:31.2) Intel Corporation 2 port SATA IDE Controller (ICH9) 
    vmhba33 iscsi_vmk         online    iqn.1998-01.com.vmware:567eeb3f-45ad-1ca5-bab4-842b2b0b0237-4bff319biSCSI Software Adapter

  2. Check the current parameter values of the iSCSI initiator by executing esxcli iscsi adapter param get -A vmhba33.

    vmhba33 indicates the iSCSI initiator name queried in 1.

    ~ # esxcli iscsi adapter param get -A vmhba33 
    Name                  Current     Default     Min  Max       Settable  Inherit 
    --------------------  ----------  ----------  ---  --------  --------  ------- 
    ErrorRecoveryLevel    0           0           0    2            false    false 
    InitialLoginRetryMax  4           4           0    64           false    false 
    InitialR2T            false       false       na na           false    false 
    FirstBurstLength      262144      262144      512  16777215      true    false 
    MaxBurstLength        262144      262144      512  16777215      true    false 
    MaxRecvDataSegment    131072      131072      512  16777215      true    false 
    MaxOutstandingR2T     1           1           1    8             true    false 
    MaxCmds               128         128         2    2048         false    false 
    ImmediateData         true        true        na na           false    false 
    DefaultTime2Retain    0           0           0    60           false    false 
    DefaultTime2Wait      2           2           0    60           false    false 
    LoginTimeout          5           5           1    60            true    false 
    LogoutTimeout         15          15          0    60           false    false 
    NoopOutInterval       15          15          1    60            true    false 
    NoopOutTimeout        10          10          10 30            true    false 
    RecoveryTimeout       10          10          1    120         true    false 
    DelayedAck            true        true        na na            true    false 
    HeaderDigest          prohibited  prohibited  na na            true    false 
    DataDigest            prohibited  prohibited  na na            true    false

  3. Set parameter values of the iSCSI initiator according to the actual environment. For example, if you want to set NoopOutInterval, NoopOutTimeout, and RecoveryTimeout to 1, 10, and 1, respectively, execute the following commands:

    1. esxcli iscsi adapter param set -A vmhba33 -k NoopOutInterval -v 1
       [root@localhost:~] esxcli iscsi adapter param set -A vmhba33 -k NoopOutInterval -v 1 
       [root@localhost:~] 
    2. esxcli iscsi adapter param set -A vmhba33 -k NoopOutTimeout -v 10
       [root@localhost:~] esxcli iscsi adapter param set -A vmhba33 -k NoopOutTimeout -v 10 
       [root@localhost:~] 
    3. esxcli iscsi adapter param set -A vmhba33 -k RecoveryTimeout -v 1
       [root@localhost:~] esxcli iscsi adapter param set -A vmhba33 -k RecoveryTimeout -v 1 
       [root@localhost:~] 

  4. Restart the ESXi host.
  5. Check whether the setting takes effect after the restart using the method in 2.
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Updated: 2019-06-29

Document ID: EDOC1100052672

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