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"A friendly reminder that there will be a number of rolling restarts for U.S. realms this morning starting at 5:00 a.m. PDT, and lasting until 6:00 a.m. PDT. Several realms will be offline for approximately 15 minutes (if everything goes okay). This is a welcomed event as some servers have noticed stability issues in the past couple of days. The U.S. realms that will be restarted are: Arathor, Azjol-Nerub, Bloodscalp, Bonechewer, Boulderfist, Bronzebeard, Crushridge, Daggerspine, Darkspear, Draenor, Dragonblight, Dragonmaw, Dunemaul, Eldre'Thalas, Fethermoon, Firetree, Frostmane, Gurubashi, Nathrezim, Scarlet Crusade, Shadow Council, Shadowsong, Silvermoon, Skywall, Smolderthorn, Spirestone, Stonemaul, Stormscale, Suramar, Terenas, UIdum, Windrunner If there are any major down times that come up, WoW Insider will let you know will all due haste."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.engadget.com/2008/06/04/rolling-restarts/>