2019-09-29: FG; Fix bug causing missing info min/maxfrac when disk broken.

Ceph/Script/cephDiskPerf.pl

@@ -235,6 +235,7 @@ if ($selectSizeOrDev) {
 	next if $aKey >= $selectMax;
 	foreach my $elem (sort {$a<=> $b} @{$dataSizeH{$aKey}}) {
 	    next if ($thisHost && not exists $osdThisHost{$elem});
+	    next if (not defined $dataHash{$elem}{$perfType});
 	    print "PerfType;ush: OSD=$elem size=$aKey lat=".$dataHash{$elem}{$perfType}."\n" if (defined $opt_debug);
 	    push (@latArray, $dataHash{$elem}{$perfType});
 	    $count++;
@@ -251,6 +252,7 @@ if ($selectSizeOrDev) {
 	next unless $aKey =~ $selectSize;
 	foreach my $elem (sort {$a<=> $b} @{$dataTypeH{$aKey}}) {
 	    next if ($thisHost && not exists $osdThisHost{$elem});
+	    next if (not defined $dataHash{$elem}{$perfType});
 	    print "Push: OSD=$elem size=$aKey lat=".$dataHash{$elem}{$perfType}."\n" if (defined $opt_debug);
 	    push (@latArray, $dataHash{$elem}{$perfType});
 	    $count++;