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openSUSE:13.1:Update
s390-tools
s390-tools-sles11sp2-ziomon-symlinks-multipath-...
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File s390-tools-sles11sp2-ziomon-symlinks-multipath-devices.patch of Package s390-tools
Subject: [PATCH] [BZ 87092] ziomon: follow symlinks to find multipath devices From: Steffen Maier <maier@linux.vnet.ibm.com> Description: ziomon: follow symlinks to find multipath devices Symptom: # ziorep_config -M -i some.cfg Use of uninitialized value within %mapper_dev in \ concatenation (.) or string at /usr/sbin/ziorep_config \ line 305. ... # ziorep_traffic some.log -C m ... ziorep_traffic: No multipath devices in configuration found. \ Aggregation by multipath devices not possible with this data. # ziorep_traffic some.log -m mpatha ... Error: Could not find multipath device mpatha in \ configuration. Problem: ziomon_fcpconf did not follow symlinks when retrieving major:minor number for device mapper devices under /dev/mapper/ where typically only symbolic links are found. Dm devices ended up as n/a with 0:0 in the ziomon config and could thus not be found by the analysis tools of ziomon. Solution: Follow symlinks on retrieving major:minor numbers for device mapper devices under /dev/mapper/. Reproduction: Have device mapper multipathing configured and execute any of the ziomon tools dealing with printing collected multipath configuration or with analysis of collected performance data requesting collapsing by multipath devices or specifying multipath device(s) as filter. Upstream-ID: - Problem-ID: 87092 Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com> --- ziomon/ziomon_fcpconf | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/ziomon/ziomon_fcpconf +++ b/ziomon/ziomon_fcpconf @@ -58,7 +58,7 @@ sub store_mapper_devices foreach my $map_dev (@entries) { my $tf = catfile($src_dir, "$map_dev"); - my $mm = `stat -c%t:%T $tf`; + my $mm = `stat -L -c%t:%T $tf`; chomp($mm); $mm = join(":", map { hex($_) } split(":", $mm)); system("echo $mm > " . catfile($dest_dir, $src_dir, $map_dev));
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