Displaying 6 results from an estimated 6 matches for "path_selector".
2015 Apr 14
1
HBA enumeration and multipath configuration
...up our multipath filtering for weightedpath priority settings. From /etc/multipath.conf:
defaults {
user_friendly_names no
find_multipaths yes
prio weightedpath
prio_args "hbtl 0:.:.:.* 1 [1-9]:.:.:.* 10"
path_grouping_policy group_by_prio
path_selector "service-time 0"
failback immediate
polling_interval 5
no_path_retry 12
}
The setting for prio_args fails to set the correct path map topology and priority against an HBA as
I can't predict what HBA is what. Consistently iSCSI claims the lowest number but I ca...
2006 Apr 13
1
device-mapper multipath
...(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"
devnode "^hd[a-z][[0-9]*]"
devnode "^hda[0-9]*"
devnode "^cciss!c[0-9]d[0-9]*[p[0-9]*]"
}
multipaths {
multipath {
wwid 222ea000155eadda4
alias stor
path_grouping_policy multibus
path_checker readsector0
path_selector "round-robin 0"
failback immediate
}
}
==================================================
The output from "multipath -v 3" of my CentOS machine is below:
load path identifiers cache
#
# all paths in cache :
#
222ea000155eadda4 0:0:0:0 sda 8:0 [ready] Promise /VTrak M300i...
2015 Mar 05
1
Cannot remount drive after lost iSCSI connection
The most recent message is:
[3108269.919256] sd 2:0:1:0: timing out command, waited 1080s
[3108269.919528] sd 2:0:1:0: [sdb] Unhandled error code
[3108269.919535] sd 2:0:1:0: [sdb] Result: hostbyte=DID_OK
driverbyte=DRIVER_OK
[3108269.919540] sd 2:0:1:0: [sdb] CDB: Read(10): 28 00 00 01 21 47 00 00
08 00
[3108269.919586] EXT4-fs error (device sdb1): ext4_find_entry: reading
directory #2 offset 0
2009 Sep 27
0
SUMMARY : multipath using defaults rather than multipath.conf contents for some devices (?) - why ?
...vendor "(COMPAQ|HP)"
product "HSV1[01]1|HSV2[01]0|HSV300|HSV4[05]0"
getuid_callout "/sbin/scsi_id -g -u -s /block/%n"
prio_callout "/sbin/mpath_prio_alua /dev/%n"
hardware_handler "0"
path_selector "round-robin 0"
path_grouping_policy group_by_prio
failback immediate
rr_weight uniform
no_path_retry 18
rr_min_io 100
path_checker tur
}
- but our actual multipathing as shown by multipath -ll , and multipath -...
2009 Sep 17
1
multipath using defaults rather than multipath.conf contents for some devices (?) - why ?
...vendor "(COMPAQ|HP)"
product "HSV1[01]1|HSV2[01]0|HSV300|HSV4[05]0"
getuid_callout "/sbin/scsi_id -g -u -s /block/%n"
prio_callout "/sbin/mpath_prio_alua /dev/%n"
hardware_handler "0"
path_selector "round-robin 0"
path_grouping_policy group_by_prio
failback immediate
rr_weight uniform
no_path_retry 18
rr_min_io 100
path_checker tur
}
- but our actual multipathing as shown by multipath -ll , and multipath -...
2008 Jun 25
6
dm-multipath use
Are folks in the Centos community succesfully using device-mapper-multipath?
I am looking to deploy it for error handling on our iSCSI setup but there
seems to be little traffic about this package on the Centos forums, as far
as I can tell, and there seems to be a number of small issues based on my
reading the dm-multipath developer lists and related resources.
-geoff
Geoff Galitz
Blankenheim