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Configure and Customize Dell PowerFlex v3.6.x

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Modify parameters on ESXi servers

Use esxcli commands on an SDC running on an ESXi server to update parameters.

About this task

The following esxcli commands can be used in the following cases:
  • MDM IP addresses need to be added to the existing list on an SDC
  • MDM IP addresses need to be replaced on an SDC

  • The SDC’s GUID needs to be changed

Specifically, the SDC’s GUID or IP address needs to be identified, and then used to add or modify the MDM IP addresses or GUID (depending on the parameter that you want to modify). If you want to add additional MDM IP addresses to existing ones, you must list both old and additional IP addresses in the esxcli command.

For more information about SDC tuning, see PowerFlex Performance Fine-Tuning Technical Notes.

If the current configuration of PowerFlex is registered with a v2.0 VMware plug-in, you can use the plug-in Update SDC parameters to update the MDM IP addresses. For more information, see the Deploy Dell PowerFlex .

NOTE: These procedures require a server restart to apply the new configuration. The configuration will remain persistent after future server restarts.

To configure MDM IP addresses on the SDC, perform these steps:

Steps

  1. Find the SDC’s GUID and the MDM IP addresses configured on the ESX, by typing the command: 
    esxcli system module parameters list -m scini
  2. In the output of the command, find the existing GUID and MDM IP addresses.
    For example, in the output excerpt below, the GUID and IP addresses are marked in bold: 
    IoctlIniGuidStr string 
39b89295-5cfc-4a42-bf89-4cc7e55a1e5b Ini Guid, for example: 12345678-90AB-CDEF-1234-567890ABCDEF
    IoctlMdmIPStr string 
9.99.101.22,9.99.101.23 Mdms IPs, IPs for MDM in same cluster should be comma-separated. To configure more than one cluster use '+' to separate between IPs.For Example:
10.20.30.40,50.60.70.80+11.22.33.44. Max 1024 characters
  3. To configure the MDM IP addresses on the SDC, type the command 
    esxcli system module parameters set -m scini -p
"IoctlIniGuidStr=<GUID> IoctlMdmIPStr=<MDM_IPS>"

    where <GUID> is the existing SDC GUID that you identified in the previous step, and <MDM_IPS> is the list of MDM IP addresses. A maximum of 1024 characters is allowed.

    1. To replace the old MDM IP addresses with new MDM IP addresses, omit the old addresses from the command.
    2. To add MDM IP addresses to the existing IP addresses, type both the existing IP addresses and the new IP addresses in the command.
      MDM IP addresses for MDMs in same cluster must be comma-separated. To configure more than one cluster, use '+' to separate between IP addresses in different clusters. For example: 
      esxcli system module parameters set -m scini -p
"IoctlIniGuidStr=39b89295-5cfc-4a42-bf89-4cc7e55a1e5b
IoctlMdmIPStr=10.20.30.40,50.60.70.80+11.22.33.44"
  4. To apply the new configuration, restart the ESX server.
    To change the GUID of the SDC, perform these steps:
  5. Find the SDC’s GUID and the MDM IP addresses configured on the ESX, by typing the command 
    esxcli system module parameters list -m scini
  6. In the output of the command, find the existing GUID and MDM IP addresses.
    For example, in the output excerpt below, the GUID and IP addresses are marked in bold: 
    IoctlIniGuidStr string 
39b89295-5cfc-4a42-bf89-4cc7e55a1e5b Ini Guid, for example: 12345678-90AB-CDEF-1234-567890ABCDEF
    IoctlMdmIPStr string 9.99.101.22,9.99.101.23 Mdms IPs, IPs for MDM in same cluster should be comma-separated. To configure more than one cluster use '+' to separate between IPs.For Example:
10.20.30.40,50.60.70.80+11.22.33.44. Max 1024 characters
  7. To change the GUID on the SDC, type the command 
    esxcli system module parameters set -m scini -p
"IoctlIniGuidStr=<NEW_GUID> IoctlMdmIPStr=<MDM_IPS>

    where <NEW_GUID> is the new SDC GUID, and <MDM_IPS> is the list of MDM IP addresses that you identified in the previous step. You must include these IP addresses in the command.

    For example: 

    esxcli system module parameters set -m scini -p
"IoctlIniGuidStr=28a78184-4beb-4a42-bf89-4cc7e55a1e5b IoctlMdmIPStr= 9.99.101.22,9.99.101.23"
  8. To apply the new configuration, restart the ESX server.

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