PowerVault: Kombineret Linux MPIO multipath.conf

Summary: Denne artikel dækker multipath.conf-indstillinger for Linux baseret på Best Practices-vejledninger til MD- og ME-lagring.

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
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Symptoms

Denne fil er udviklet med Best Practices for Linux-baseret Multipath Input/Output (MPIO) på PowerVault ME5-, ME4- og MD3-storage. Rediger filen "/etc/multipath.conf", der genereres af mange Linux-operativsystemdistributioner ved hjælp af disse indstillinger.

 

Se Linux-dokumentationen, da nogle Linux-operativsystemdistributioner kan kræve brugerdefinerede indstillinger, der kan anvendes, før filen tages i brug.

Historie:

  • Ordlyden i PowerVault ME5 blev tilføjet 25. april 2022
  • PowerVault ME4-specifikke indstillinger tilføjet 11. februar 2020
  • Specifikke indstillinger for MD34xx/38xx
  • Specifikke indstillinger for MD32xx/36xx
  • Sortlistning

 

ME4-standardindstillingerne findes i dokumentet "Dell EMC PowerVault ME4 Series and Linux" -versionen (september 2018).

Du kan finde andre bedste fremgangsmåder for operativsystemet i Dell Technologies Infohub.

Der er en tekst- og filversion i KB. Teksten er nedenfor, og filen er vedhæftet.

Tekstversionen skal placeres i en fil eller erstattes tekst i Linux-værtens "multipath.conf"-fil.

Cause

Se Opløsning nedenfor.

Resolution

##Default System Values
defaults {
 user_friendly_names  yes
 find_multipaths   yes
 max_fds     8192
 polling_interval  5
 queue_without_daemon no
}

## Universal Blacklist  (recommend white-listing)
blacklist {
 device {
  vendor    "*"
  product    "*"
 }
}
## Blacklist Exceptions
blacklist_exceptions {
 device {
  vendor    "DELL"
  product    "MD32xxi"
 }
 device {
  vendor    "DELL"
  product    "MD32xx"
 }
 device {
  vendor    "DELL"
  product    "MD34xx"
 }
 device {
  vendor    "DELL"
  product    "MD36xx(i|f)"
 }
 device {
  vendor    "DELL"
  product    "MD38xx(i|f)"
 }
 device {
  vendor    "COMPELNT"
  product    "Compellent Vol"
 }
 device {
  vendor    "DellEMC"
  product    "ME4"
 }
  device {
  vendor    "DellEMC"
  product    "ME5"
 }
}
## Dell Device Configuration
devices {
 device {
  vendor                "DELL"
  product               "MD32xxi"
  path_grouping_policy  group_by_prio
  prio                  rdac
  path_checker          rdac
  path_selector         "round-robin 0"
  hardware_handler      "1 rdac"
  failback              immediate
  features              "2 pg_init_retries 50"
  no_path_retry         30
  rr_min_io             100
 }
 device {
  vendor                "DELL"
  product               "MD32xx"
  path_grouping_policy  group_by_prio
  prio                  rdac
  path_checker          rdac
  path_selector         "round-robin 0"
  hardware_handler      "1 rdac"
  failback              immediate
  features              "2 pg_init_retries 50"
  no_path_retry         30
  rr_min_io             100
 }
 device {
  vendor                "DELL"
  product               "MD36xxi"
  path_grouping_policy  group_by_prio
  prio                  rdac
  path_checker          rdac
  path_selector         "round-robin 0"
  hardware_handler      "1 rdac"
  failback              immediate
  features              "2 pg_init_retries 50"
  no_path_retry         30
  rr_min_io             100
 }
 device {
  vendor                "DELL"
  product               "MD36xxf"
  path_grouping_policy  group_by_prio
  prio                  rdac
  path_checker          rdac
  path_selector         "round-robin 0"
  hardware_handler      "1 rdac"
  failback              immediate
  features              "2 pg_init_retries 50"
  no_path_retry         30
  rr_min_io             100
 }
 device {
  vendor                "DELL"
  product               "MD34xx"
  path_grouping_policy  group_by_prio
  prio                  rdac
  path_checker          rdac
  path_selector         "round-robin 0"
  hardware_handler      "1 rdac"
  failback              immediate
  features              "2 pg_init_retries 50"
  no_path_retry         30
  rr_min_io             100
 }
 device {
  vendor                "DELL"
  product               "MD38xxi"
  path_grouping_policy  group_by_prio
  prio                  rdac
  path_checker          rdac
  path_selector         "round-robin 0"
  hardware_handler      "1 rdac"
  failback              immediate
  features              "2 pg_init_retries 50"
  no_path_retry         30
  rr_min_io             100
 }
 device {
  vendor                "DELL"
  product               "MD38xxf"
  path_grouping_policy  group_by_prio
  prio                  rdac
  path_checker          rdac
  path_selector         "round-robin 0"
  hardware_handler      "1 rdac"
  failback              immediate
  features              "2 pg_init_retries 50"
  no_path_retry         30
  rr_min_io             100
 }
 device {
  vendor "DellEMC"
  product "ME4"
  path_grouping_policy group_by_prio
  path_checker "tur"
  hardware_handler "1 alua"
  prio "alua"
  failback immediate
  rr_weight "uniform"
  path_selector "service-time 0"
  }
 device {
  vendor "DellEMC"
  product "ME5"
  path_grouping_policy group_by_prio
  path_checker "tur"
  hardware_handler "1 alua"
  prio "alua"
  failback immediate
  rr_weight "uniform"
  path_selector "service-time 0"
  }
}

Affected Products

Dell PowerVault MD3000 with Red Hat Enterprise Linux HA Clusters, Dell PowerVault MD3000i with Windows HA Clusters, Dell PowerVault MD3600i/3620i Windows HA Cluster, Dell PowerVault OEM Ready MD34XX and MD38XX, OEMR ME40XX and ME4XX , PowerVault MD3260i, PowerVault MD3400, PowerVault MD3420, PowerVault MD3460, PowerVault MD3660f, PowerVault MD3660i, PowerVault MD3800f, PowerVault MD3800i, PowerVault MD3820f, PowerVault MD3820i, PowerVault MD3860f, PowerVault MD3860i, Dell EMC PowerVault ME4012, Dell EMC PowerVault ME4024, Dell EMC PowerVault ME4084, Dell EMC PowerVault ME412 Expansion, Dell EMC PowerVault ME424 Expansion, Dell EMC PowerVault ME484, PowerVault ME5012, PowerVault ME5024, PowerVault ME5084 ...
Article Properties
Article Number: 000124601
Article Type: Solution
Last Modified: 16 Sep 2025
Version:  7
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