• How to rename PowerPath devices

    Product:   AX series CX series CX3 series CX4 series PowerPath v5.3 or later   Description:   After the replacement of HBA or SP, or something like that, we might found that the old device names ...
    3CsForumModerator
    last modified by 3CsForumModerator
  • How to run and gather SPCollects using Navisphere Express

    Product: AX Series, AX4-5, Navisphere Express   Description:   Running and gathering SPCollects using Navisphere Express     Resolution:   The terminology for running SPCollects is differ...
    last modified by Ivan Barrera
  • What conditions can cause write cache to become disabled ?

    Product:   CLARiiON   Description:   Why is write cache disabled?   Resolution: Write cache will become disabled for the following conditions: A vault drive failure (Vault drives are in B...
    Ganapa Madhusudan
    last modified by Ganapa Madhusudan
  • What is Active/Passive ownership model of a storage system?

    Product: CLARiiON and VNX Family   For workload balancing, the storage system  LUNs are distributed between the storage processors. This results in storage processors efficiently working in parallel to serv...
    Ankit
    last modified by Ankit
  • How to upload the required logs on Service Center?

    Product:   CLARiiON Series VNX Series     Description:   How to upload the required logs on Service Center?         Resolution:   Follow these steps: 1. Go to https...
    Suman Pinnamaneni
    last modified by Suman Pinnamaneni
  • Meaning of soft and hard SCSI and media errors with extended status codes on VNX and CLARiiON arrays.

    Product: CLARiiON CX4, CX3, CX and AX Series. VNX Block, VNX Unified   Description: Meaning of soft and hard SCSI and media errors with extended status codes on VNX and CLARiiON arrays.   Resolution: D...
    Rupal Rajwar
    last modified by Rupal Rajwar
  • Best practices for single initiator zoning (one initiator, one target)

    Product: CLARiiON Series   Description: Best practices for single initiator zoning (one initiator, one target)   Resolution:   The recommendation is to use just one path to both SPs per HBA: EM...
    Suman Pinnamaneni
    last modified by Suman Pinnamaneni
  • Troubleshooting a CLARiiON storage processor (SP) that can be pinged but cannot be accessed via EMCRemote

    Product:   CLARiiON  Series   Description:   How to troubleshoot if a CLARiiON storage processor (SP) is pinging but cannot be accessed via EMCRemote?   Resolution:   There hav...
    Suman Pinnamaneni
    last modified by Suman Pinnamaneni
  • ESXi cannot see LUNs past a certain number. All paths are exhausted

    System: VMware ESXi 4.1  Product: VNX Series  Product: CLARiiON  Product: Symmetrix  EMC SW: PowerPath  Symptom:  ScsiPath: 836: Couldn't allocate path (vmhba2:C0:T52:L0) during...
    Ankit
    last modified by Ankit
  • LUNZ or ghost LUN explained briefly.

    Product:   CLARiiON AX Series, CLARiiON CX Series   Description:   CLARiiON Array presents LUNZ (ghost LUN) over iSCSI when no devices are presented.   Resolution:   LUNZ has been impleme...
    Satish_Kutty
    last modified by Satish_Kutty
  • Types of Hard drives that can be swapped as Hot Spares.

    Product:   CLARiiON CX3 series,CLARiiON AX4 series.   Description:   Drive types that can swap in as hot spares in CLARiiON CX3 and AX4 series.   Resolution:   From the introduction of ...
    Satish_Kutty
    last modified by Satish_Kutty
  • Where can I find information about CLARiiON enablers?

    Enabler NameRevDisplay NameMininimumReboot?~~~~ Notes ~~~~ FLARE Release New Enabler Navisphere Analyzer Enabler01.01.5.005NavisphereAnalyzer NNEW  Version R30 FAST01.01.5.008FASTR30YNote1FAST Ca...
    Ankit
    last modified by Ankit
  • Steps to remove unused Host initiators in AX4 using Navisphere Express.

    Product:   CLARiiON AX4   Description:   Removing unused Host initiators in AX4 using Navisphere Express.   Resolution:              ...
    Satish_Kutty
    last modified by Satish_Kutty
  • Changing the failover mode setting online

    Changing these settings cannot be done online. You must change the settings when the host is offline, that is, no I/O is going to the array from the host. If you change any of these online (during production), you wil...
    Ankit
    last modified by Ankit
  • How to get SP Utilization % via naviseccli

    The purpose of the SP utilization metric is to give us a rough understanding of how the SP is performing comparative to other arrays or other SPs.The statistic by itself is not very useful as an absolute value for per...
    Ankit
    last modified by Ankit
  • How a striped expansion of a metaLUN affects host I/Os

    Product:   CX  series CX3 series CX4 series   Description:   Striped expansion takes time and during the restriping process, host I/O is greatly affected. This article describes some considerati...
    3CsForumModerator
    last modified by 3CsForumModerator
  • How to configure a VMware ESX / ESXi host with an Emulex HBA to boot from SAN in a CLARiiON environment

    Product:   CLARiiON   Description:   How to configure a VMware ESX / ESXi host with an Emulex HBA to boot from SAN in a CLARiiON environment   Solution:   Configuring the Emulex HBA BIO...
    3CsForumModerator
    last modified by 3CsForumModerator
  • How do I create a new username and password on an AX4-5 if password is lost?

    Product: AX4-5 only Description:   Generate a new  username and password on an AX4-5 if password is lost.   Resolution:   To create a new username and password, complete the following step...
    3CsForumModerator
    last modified by 3CsForumModerator
  • How can I determine whether my CLARiiON model and FLARE code are compatible with certain disk drives

    Product: CLARiiON, FLARE Description: Determining whether my CLARiiON model and FLARE revision are compatible with certain disk drives. Resolution: Disk and FLARE OE Matrix documents are available ...
    3CsForumModerator
    last modified by 3CsForumModerator
  • Meaning of different failover modes

    Product:   CLARiiON   Description:   A CLARiiON LUN trespass may be initiated by the storage system, or by the path-management software residing on the server. The Failover Mode of the initiator spec...
    3CsForumModerator
    last modified by 3CsForumModerator