round robin setting in esxi 6.5

[jprovine7]

I the past on esxi 5.5 I have had to manually set round robin for the connection to my pure all flash array. Does that have to be done in esxi 6.5 and how can I verify that my setting are correct? These are two settings I have configured in the past iops and round robin

esxcli storage nmp satp rule add -s "VMW_SATP_ALUA" -V "PURE" -M "FlashArray" -P "VMW_PSP_RR" -O "iops=1

esxcli storage nmp psp roundrobin deviceconfig set -d naa.<naa. adress> -I 1 -t iops

[SupreetK]

Please check the below articles. These are applicable to 6.5 as well -

Change the default PSP - https://kb.vmware.com/s/article/1017760

Change the IOPS from 1000 to 1 - https://kb.vmware.com/s/article/2069356​

Cheers,

Supreet

[jprovine7]

I will check these out I assume that they have instruction on how to verify the setting

[SupreetK]

Nope, they have instructions on how to change the settings as well.

Cheers,

Supreet

[jprovine7]

so they don't have a way to verify the settings?

[SupreetK]

If you open the above articles, you will definitely get your answers. Anyways, below is how you verify the current configured PSP and IOPS value set respectively -

Check the set PSP - <esxcli storage nmp satp list>

Check the IOPS value - <esxcli storage nmp device list> --> Navigate to the respective LUN and check for the row starting with 'Path Selection Policy Device Config'

Cheers,

Supreet

[jprovine7]

This was easy it appears it was already set in esxi 6.5, which is my real question is it set by default in esxi 6.5, because in the past I had to go and change the setting for esxi 6.5. Now to go look at the setting for PSP

Path Selection Policy Device Config: {policy=rr,iops=1

[jprovine7]

I did this for the PSP but I did not see in the article where is says what its suppose to be for 6.5

esxcfg-info | grep -A1 "Default Path Selection Policy"

                  |----Default Path Selection Policy................VMW_PSP_MRU

                  |----Name.........................................VMW_SATP_ALUA

--

                  |----Default Path Selection Policy................VMW_PSP_MRU

                  |----Name.........................................VMW_SATP_MSA

--

                  |----Default Path Selection Policy................VMW_PSP_MRU

                  |----Name.........................................VMW_SATP_DEFAULT_AP

--

                  |----Default Path Selection Policy................VMW_PSP_FIXED

                  |----Name.........................................VMW_SATP_SVC

--

                  |----Default Path Selection Policy................VMW_PSP_FIXED

                  |----Name.........................................VMW_SATP_EQL

--

                  |----Default Path Selection Policy................VMW_PSP_FIXED

                  |----Name.........................................VMW_SATP_INV

--

                  |----Default Path Selection Policy................VMW_PSP_FIXED

                  |----Name.........................................VMW_SATP_EVA

--

                  |----Default Path Selection Policy................VMW_PSP_RR

                  |----Name.........................................VMW_SATP_ALUA_CX

--

                  |----Default Path Selection Policy................VMW_PSP_RR

                  |----Name.........................................VMW_SATP_SYMM

--

                  |----Default Path Selection Policy................VMW_PSP_MRU

                  |----Name.........................................VMW_SATP_CX

--

                  |----Default Path Selection Policy................VMW_PSP_MRU

                  |----Name.........................................VMW_SATP_LSI

--

                  |----Default Path Selection Policy................VMW_PSP_FIXED

                  |----Name.........................................VMW_SATP_DEFAULT_AA

--

                  |----Default Path Selection Policy................VMW_PSP_FIXED

                  |----Name.........................................VMW_SATP_LOCAL

--

            |----World Command Line.................................grep -A1 Default Path Selection Policy

            |----Cartel ID..........................................407700

[root@kotter:~] esxcli nmp satp list

Error: Unknown command or namespace nmp satp list

[root@kotter:~] esxcli storage nmp satp list

Name                 Default PSP    Description

-------------------  -------------  -------------------------------------------------------

VMW_SATP_ALUA        VMW_PSP_MRU    Supports non-specific arrays that use the ALUA protocol

VMW_SATP_MSA         VMW_PSP_MRU    Placeholder (plugin not loaded)

VMW_SATP_DEFAULT_AP  VMW_PSP_MRU    Placeholder (plugin not loaded)

VMW_SATP_SVC         VMW_PSP_FIXED  Placeholder (plugin not loaded)

VMW_SATP_EQL         VMW_PSP_FIXED  Placeholder (plugin not loaded)

VMW_SATP_INV         VMW_PSP_FIXED  Placeholder (plugin not loaded)

VMW_SATP_EVA         VMW_PSP_FIXED  Placeholder (plugin not loaded)

VMW_SATP_ALUA_CX     VMW_PSP_RR     Placeholder (plugin not loaded)

VMW_SATP_SYMM        VMW_PSP_RR     Placeholder (plugin not loaded)

VMW_SATP_CX          VMW_PSP_MRU    Placeholder (plugin not loaded)

VMW_SATP_LSI         VMW_PSP_MRU    Placeholder (plugin not loaded)

VMW_SATP_DEFAULT_AA  VMW_PSP_FIXED  Supports non-specific active/active arrays

VMW_SATP_LOCAL       VMW_PSP_FIXED  Supports direct attached devices

[SupreetK]

As per my understanding, it selects the default PSP based on the SATP.

Cheers,

Supreet