Alua Support Implicit Only

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Configuration Settings for ALUA Devices - VMware vSphere Blog

    https://blogs.vmware.com/vsphere/2012/02/configuration-settings-for-alua-devices.html
    Feb 03, 2012 · This only matters if the device actually supports explicit ALUA (i.e. explicit_support is 'on'). This option is turned on using 'enable_explicit_alua' and turned off using 'disable_explicit_alua' (esxcli command).

ALUA ALUA Definition Pearson IT Certification

    http://www.pearsonitcertification.com/articles/article.aspx?p=2819032
    Oct 05, 2017 · This means that the storage array does not support ALUA or, in the case of EMC CLARiiON, the initiator records are not configured in a mode that supports ALUA. Implicit—The array responds to REPORT TPGs but not SET TPGs commands. In this case, setting the TPG’s AAS is done only by the storage array.

What’s that ALUA exactly? – Yellow Bricks Yellow Bricks

    http://www.yellow-bricks.com/2009/09/29/whats-that-alua-exactly/
    Sep 29, 2009 · As Chad explains and as a google search shows it’s common for midrange arrays these days to have ALUA support. With midrange we are talking about EMC Clariion, HP EVA and others. ... Apparently this is now required because both HP and VMware will only support hardware iSCSI for this SAN. I have asked to HP but not yet received an answer.

ALUA - SlideShare

    https://www.slideshare.net/AshwinPawar/alua
    Sep 23, 2014 · In implicit ALUA, the target device itself manages a device‟s Target Port Group states. 1st Stage: Discovery TARGET PORT GROUPS SUPPORT [TPGS]: SCSI logical units with asymmetric logical unit access may be identified using the INQUIRY command.

MPIO\_DSM\_Path\_V2 WMI Class - Windows drivers ...

    https://docs.microsoft.com/en-us/windows-hardware/drivers/storage/mpio-dsm-path-v2-wmi-class
    MPIO_DSM_Path_V2 WMI Class. 10/17/2018; 2 minutes to read; In this article. MPIO publishes the MPIO_DSM_Path_V2 WMI class but expects the DSM to register the GUID and handle its implementation. An MPIO driver uses the MPIO_DSM_Path_V2 WMI class to identify the path ID as reported by a DSM.

Asymmetric Logical Unit Access (ALUA) support on NetApp ...

    https://kb.netapp.com/app/answers/answer_view/a_id/1003251/~/asymmetric-logical-unit-access-%28alua%29-support-on-netapp-storage---frequently
    Nov 27, 2017 · Data ONTAP implements the implicit ALUA style, not the explicit format. ... It is a NetApp Best Practice to use ALUA on hosts that support ALUA. Note: Please verify a host supports ALUA prior to implementing, as a cluster failover will result in system interruption or possible data loss. All NetApp LUNs presented to an individual host must have ...

Server may freeze during startup when ALUA-capable storage ...

    https://support.microsoft.com/en-us/help/3046101/server-may-freeze-during-startup-when-alua-capable-storage-is-used-in
    Jul 01, 2015 · Describes an issue in which an ALUA-capable storage does not work correctly in Windows Server 2012 R2 or Windows Server 2012. ... However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to …

Solaris MPxIO Support of EMC VPLEX OPM

    https://support.oracle.com/knowledge/Sun%20Microsystems/2238077_1.html
    Explicit ALUA, only Implicit ALUA, we do not support the STPG command and will raise a check condition if it is sent. Only the RTPG command "Report Target Port Groups" is supported. VPLEX can present its devices as either A/A or ALUA, but they are usually mutually exclusive in the eyes of the host.

Multipathing Support in Windows Server 2008

    https://www.myitblog.in/2012/01/multipathing-support-in-windows-server.html
    The Microsoft DSM will persist the Load Balance settings across reboots. When no policy has been set by a management application, the default policy that will be used by MSDSM DSM will be either Round Robin, in the case of non-ALUA support, or Fail Over Only in the case of ALUA support.



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