Fix DRBD disconnect steps (#413) #1472

Job	Run time
select-dc-files	25s
validate (./DC-SLE-HA-all ./l10n/de-de/DC-SLE-HA-all)	24s
validate (./l10n/es-es/DC-SLE-HA-all)	23s
validate (./l10n/fr-fr/DC-SLE-HA-all)	25s
validate (./l10n/it-it/DC-SLE-HA-all)	22s
validate (./l10n/ja-jp/DC-SLE-HA-all)	19s
validate (./l10n/pt-br/DC-SLE-HA-all)	27s
validate (./l10n/zh-cn/DC-SLE-HA-all)	22s
validate (./l10n/zh-tw/DC-SLE-HA-all)	20s
build-html (DC-SLE-HA-geo-guide)	59s
build-html (DC-SLE-HA-geo-quick)	52s
build-html (DC-SLE-HA-guide)	1m 46s
build-html (DC-SLE-HA-install-quick)	1m 0s
build-html (DC-SLE-HA-nfs-quick)	1m 9s
build-html (DC-SLE-HA-pmremote-quick)	58s
publish	20s
	10m 31s

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