Displaying 6 results from an estimated 6 matches for "readsector0".
2010 May 27
2
Multipathing with Sun 7310
...hey are
active/active and therefor shows half the available paths as faulty
(multipath -ll below)
While this probably gives me the redundancy that is desired, it is a
relatively messy situation, since it will be unnecessary hard to detect
real path failures and the OS is complaining about "readsector0 checker
reports path is down" which gives me >40M/24h /var/log/messages garbage.
Any hints for a reasonable configuration? Unfortunately the Sun 7310 is
rather new, so almost nothing shows up on google... even less for
RHEL/CentOS :-(
regards from Berlin
Jens
[root at dev-db1 tmp]# mul...
2006 Apr 13
1
device-mapper multipath
...evnode "^(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] Prom...
2009 Sep 27
0
SUMMARY : multipath using defaults rather than multipath.conf contents for some devices (?) - why ?
.../dev
# polling_interval 10
# selector "round-robin 0"
# path_grouping_policy multibus
# getuid_callout "/sbin/scsi_id -g -u -s /block/%n"
# prio_callout /bin/true
# path_checker readsector0
# rr_min_io 100
# rr_weight priorities
# failback immediate
# no_path_retry fail
# user_friendly_name yes
and multipath -ll reports :
.
.
[snip other HSV400 paths - all similar]
mpath12 (3600508b40007518f0000...
2009 Sep 17
1
multipath using defaults rather than multipath.conf contents for some devices (?) - why ?
.../dev
# polling_interval 10
# selector "round-robin 0"
# path_grouping_policy multibus
# getuid_callout "/sbin/scsi_id -g -u -s /block/%n"
# prio_callout /bin/true
# path_checker readsector0
# rr_min_io 100
# rr_weight priorities
# failback immediate
# no_path_retry fail
# user_friendly_name yes
and multipath -ll reports :
.
.
[snip other HSV400 paths - all similar]
mpath12 (3600508b40007518f0000...
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
2008 Apr 05
0
BUG(?): multipathd confusion leads to kernel panic in Xen 3.2.1-rc2
.../dev
polling_interval 2
selector "round-robin 0"
path_grouping_policy multibus
# getuid_callout "/sbin/scsi_id -g -u -s /block/%n"
prio_callout /bin/true
path_checker readsector0
rr_min_io 10
rr_weight priorities
failback 2
no_path_retry fail
user_friendly_name no
}
The default parameter node.conn[0].timeo.noop_out_interval = 10 on the
initiator tells it to "ping" th...