On Fri, Aug 14, 2020 at 02:24:08AM +0200, Xose Vazquez Perez wrote:
>
>If E830f is an Active-Active array without ALUA support,
>add to /etc/multipath.conf:
>
>devices {
> device {
> vendor "Promise"
> product "VTrak"
> product_blacklist "VTrak V-LUN"
> path_grouping_policy "multibus"
> detect_prio "no"
> hardware_handler ""
> prio "const"
> failback "manual"
> no_path_retry 30
> }
>}
>
>run update-initramfs, and reboot.
I updated multipath.conf as above, ran update-initramfs.
# cat /etc/multipath.conf
devices {
device {
vendor "Promise"
product "VTrak"
product_blacklist "VTrak V-LUN"
path_grouping_policy "multibus"
detect_prio "no"
hardware_handler ""
prio "const"
failback "manual"
no_path_retry 30
}
}
Also, I removed the wwid of the test LUN
# multipath -v 3 -w 2228a0001558b1855
Aug 14 11:52:54 | set open fds limit to 1048576/1048576
Aug 14 11:52:54 | loading //lib/multipath/libchecktur.so checker
Aug 14 11:52:54 | checker tur: message table size = 3
Aug 14 11:52:54 | loading //lib/multipath/libprioconst.so prioritizer
Aug 14 11:52:54 | foreign library "nvme" loaded successfully
Aug 14 11:52:54 | libdevmapper version 1.02.155 (2018-12-18)
Aug 14 11:52:54 | DM multipath kernel driver v1.13.0
Aug 14 11:52:54 | removing line '/2228a0001558b1855/
' from wwids file
Aug 14 11:52:54 | found '/2228a0001558b1855/
'
wwid '2228a0001558b1855' removed
Aug 14 11:52:54 | unloading const prioritizer
Aug 14 11:52:54 | unloading tur checker
# cat /etc/multipath/wwids
# Multipath wwids, Version : 1.0
# NOTE: This file is automatically maintained by multipath and multipathd.
# You should not need to edit this file in normal circumstances.
#
# Valid WWIDs:
/2221f000155c0792e/
/3600a098000b173f60000079e5da82d73/
/222e300015555469c/
#2228a0001558b1855/
# multipath -F
# multipath -l
(no output)
# multipath -r
# multpath -l |grep dm-
3600a098000b173f60000079e5da82d73 dm-10 DELL,MD38xxf
# reboot
# multipath -ll
3600a098000b173f60000079e5da82d73 dm-10 DELL,MD38xxf
size=40T features='5 queue_if_no_path pg_init_retries 50 queue_mode mq' hwhandler='1 rdac' wp=rw
|-+- policy='service-time 0' prio=14 status=active
| |- 1:0:10:0 sdaa 65:160 active ready running
| |- 1:0:12:0 sdac 65:192 active ready running
| |- 1:0:14:0 sdae 65:224 active ready running
| `- 1:0:8:0 sdy 65:128 active ready running
`-+- policy='service-time 0' prio=9 status=enabled
|- 1:0:11:0 sdab 65:176 active ready running
|- 1:0:13:0 sdad 65:208 active ready running
|- 1:0:7:0 sdx 65:112 active ready running
`- 1:0:9:0 sdz 65:144 active ready running
# multipath -T
defaults {
verbosity 2
polling_interval 5
max_polling_interval 20
reassign_maps "no"
multipath_dir "//lib/multipath"
path_selector "service-time 0"
path_grouping_policy "failover"
uid_attribute "ID_SERIAL"
prio "const"
prio_args ""
features "0"
path_checker "tur"
alias_prefix "mpath"
failback "manual"
rr_min_io 1000
rr_min_io_rq 1
max_fds "max"
rr_weight "uniform"
queue_without_daemon "no"
flush_on_last_del "no"
user_friendly_names "no"
fast_io_fail_tmo 5
bindings_file "/etc/multipath/bindings"
wwids_file "/etc/multipath/wwids"
prkeys_file "/etc/multipath/prkeys"
log_checker_err always
all_tg_pt "no"
retain_attached_hw_handler "yes"
detect_prio "yes"
detect_checker "yes"
force_sync "no"
strict_timing "no"
deferred_remove "no"
config_dir "/etc/multipath/conf.d"
delay_watch_checks "no"
delay_wait_checks "no"
marginal_path_err_sample_time "no"
marginal_path_err_rate_threshold "no"
marginal_path_err_recheck_gap_time "no"
marginal_path_double_failed_time "no"
find_multipaths "strict"
uxsock_timeout 4000
retrigger_tries 0
retrigger_delay 10
missing_uev_wait_timeout 30
skip_kpartx "no"
disable_changed_wwids "yes"
remove_retries 0
ghost_delay "no"
find_multipaths_timeout -10
}
blacklist {
devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st|dcssblk)[0-9]"
devnode "^(td|hd|vd)[a-z]"
devnode "^cciss!c[0-9]d[0-9]*"
device {
vendor "SGI"
product "Universal Xport"
}
device {
vendor "^DGC"
product "LUNZ"
}
device {
vendor "EMC"
product "LUNZ"
}
device {
vendor "DELL"
product "Universal Xport"
}
device {
vendor "IBM"
product "Universal Xport"
}
device {
vendor "IBM"
product "S/390"
}
device {
vendor "(NETAPP|LSI|ENGENIO)"
product "Universal Xport"
}
device {
vendor "STK"
product "Universal Xport"
}
device {
vendor "SUN"
product "Universal Xport"
}
device {
vendor "(Intel|INTEL)"
product "VTrak V-LUN"
}
device {
vendor "Promise"
product "Vess V-LUN"
}
device {
vendor "Promise"
product "VTrak V-LUN"
}
}
blacklist_exceptions {
property "(SCSI_IDENT_|ID_WWN)"
}
devices {
device {
vendor "Promise"
product "VTrak"
product_blacklist "VTrak V-LUN"
path_grouping_policy "multibus"
hardware_handler ""
prio "const"
failback "manual"
no_path_retry 30
detect_prio "no"
}
device {
vendor "DELL"
product "^MD3"
product_blacklist "Universal Xport"
path_grouping_policy "group_by_prio"
path_checker "rdac"
features "2 pg_init_retries 50"
hardware_handler "1 rdac"
prio "rdac"
failback "immediate"
no_path_retry 30
}
}
overrides {
}
multipaths {
multipath {
wwid "3600a098000b173f60000079e5da82d73"
}
}
This is the device section I had before for the Promise
device {
vendor "Promise"
product "VTrak"
product_blacklist "VTrak V-LUN"
path_grouping_policy "multibus"
path_selector "service-time 0"
path_checker "tur"
prio "alua"
failback "immediate"
no_path_retry 30
}
The only real differences are the prio and failback.
Vince
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