HP VMA-series Memory Arrays Guide de l'utilisateur télécharger pdf (Page 66)

66 HP VMA SAN Gateway Installation and Configuration Guide AM456-9025A

1. Edit the multipath.conf file, uncommenting entries, similar to the following example. The

devnode_blacklist includes devices for which you do not want multipathing enabled.

defaults {

polling_interval20

max_fds 8192

user_friendly_namesyes

}

blacklist_exceptions {

device {

vendor "VIOLIN"

product "SAN ARRAY"

}

blacklist {

device {

vendor "*"

product "*"

}

devices {

device {

vendor "VIOLIN"

product "SAN ARRAY"

path_grouping_policy group_by_serial

path_checker tur

# uncomment the corresponding getuid_callout for your OS

# Ubuntu getuid_callout

"/lib/udev/scsi_id -p 0x83 -g -u -s /block/%n"

# RHEL5/OL5 getuid_callout

"/sbin/scsi_id -p 0x80 -g -u -s /block/%n"

# RHEL6/OL6 getuid_callout

"/sbin/scsi_id --whitelisted --replace-whitespace --page=0x80 --device=/dev/

%n"

# SLES11 getuid_callout

"/lib/udev/scsi_id --page=0x83 --whitelisted --replace-whitespace --device=/

dev/%n"

path_selector "round-robin 0"

failback immediate

rr_weight uniform

no_path_retry 6

# For RHEL6.2 or other newer kernels (see man multipath.conf),

change to rr_min_io_rq

rr_min_io 4

fast_io_fail_tmo5

dev_loss_tmo 30

}

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