Red Hat DEVICE-MAPPER MULTIPATH 5.2 Uživatelský manuál stáhnout pdf (Strana 23)

DotHill – Linux Device Mapper Multipath “How To” for Storage Revision 4

# #

# # name : path_grouping_policy

# # scope : multipath

# # desc : the default path grouping policy to apply to unspecified

# # multipaths

# # values : failover = 1 path per priority group

# # multibus = all valid paths in 1 priority group

# # group_by_serial = 1 priority group per detected serial

# # number

# # group_by_prio = 1 priority group per path priority

# # value

# # group_by_node_name = 1 priority group per target node name

# # default : failover

# #

# path_grouping_policy multibus

# #

# # name : getuid_callout

# # scope : multipath

# # desc : the default program and args to callout to obtain a unique

# # path identifier. Absolute path required

# # default : /sbin/scsi_id -g -u -s

# #

# getuid_callout "/sbin/scsi_id -g -u -s /block/%n"

# #

# # name : prio_callout

# # scope : multipath

# # desc : the default program and args to callout to obtain a path

# # priority value. The ALUA bits in SPC-3 provide an

# # exploitable prio value for example. "none" is a valid value

# # default : (null)

# #

# #prio_callout "/bin/true"

# #

# # name : path_checker

# # scope : multipath & multipathd

# # desc : the default method used to determine the paths' state

# # values : readsector0|tur|emc_clariion|hp_sw|directio

# # default : readsector0

# #

# path_checker readsector0

# #

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Red Hat DEVICE-MAPPER MULTIPATH 5.2 Uživatelský manuál Strana 23