Netapp E-Series multipath configuration - Attach Multipath ISCSI to Proxmox

[daus2936]

Hello, i want to ask a question about multipath setting for ISCSI Netapp E-Series, has anyone ever configured a multipath.conf file for ISCSI Netapp E-Series ? if yes, can you tell me the recommended config to configure multipath.conf for Netapp E-Series storage, i want to use multipath, but i don't know what is the recommended setting for that.

Based on this link : official documentation link about multipath that refers to github , the default for the Netapp E-Series multipath config is like this :

{
        /*
         * SANtricity(RDAC) E/EF Series
         *
         * Maintainer: NetApp RDAC team <ng-eseries-upstream-maintainers@netapp.com>
         */
        .vendor        = "(NETAPP|LSI|ENGENIO)",
        .product       = "INF-01-00",
        .bl_product    = "Universal Xport",
        .pgpolicy      = GROUP_BY_PRIO,
        .checker_name  = RDAC,
        .features      = "2 pg_init_retries 50",
        .prio_name     = PRIO_RDAC,
        .pgfailback    = -FAILBACK_IMMEDIATE,
        .no_path_retry = 30,
    }

Well if converted to multipath.conf format, it will be like this :

devices {
    device {
        vendor                "(NETAPP|LSI|ENGENIO)"
        product               "INF-01-00"
        path_grouping_policy  group_by_prio
        path_checker          rdac
        features              "2 pg_init_retries 50"
        prio                  rdac
        failback              immediate # "immediate" is the common keyword
        no_path_retry         30
    }
}

if i use that default setting, is it fine? or there is another recommendation, please help me about this. Thank you

 

[LnxBil]

if i use that default setting, is it fine?

Only your vendor can answer that, because its their hardware layout.

 

[somedude]

Hello, i want to ask a question about multipath setting for ISCSI Netapp E-Series, has anyone ever configured a multipath.conf file for ISCSI Netapp E-Series ? if yes, can you tell me the recommended config to configure multipath.conf for Netapp E-Series storage, i want to use multipath, but i don't know what is the recommended setting for that.

The recommended setting is to not touch anything.

Based on this link : official documentation link about multipath that refers to github , the default for the Netapp E-Series multipath config is like this :

What link? The official documentation suggests to not configure any settings (i.e. use the default values).
https://docs.netapp.com/us-en/e-series/config-linux/iscsi-setup-multipath-conf-file-concept.html

if i use that default setting, is it fine?

The default settings are fine, but yours isn't a default setting, it's wrong. From the link above:

> For SANtricity operating system 8.30 and newer, NetApp recommends using the default settings as provided.
> No changes to /etc/multipath.conf are required.