上午接到研發人員的電話，報告說不能執行checkout命令，報錯信息如下：
cleartool: Error: Directory element "TestCases" is already checked out to view "<no-tag-in-region>".
故障分析：
1). 使用ClearCase Admin用戶登陸並進入相應目錄查找checkout的信息：
$cd Z:/28100485_du_china/LDS_Tools/cnh1011382/TestCases
$ cleartool lscheckout -long .@@
2008-01-22T10:06:09+08 Du (28100485.Domain Users@cnbjw1023)
checkout directory version "." from /main/cnh1011382/cnh1011382_r1a_dev/brat_generated_xml_rel/cnbj_brat_generated_xml_du_china_iso/850 (reserved)
by view: <No-tag-in-region> ("cnbjclc102:D:/viewstore/ZZZ_UB_28100485_1179f3c9a6f.vws")
"No-tag-in-region"說明在region裏找不到該View的tag.
2). 試着執行了uncheckout和checkin命令都不行，報錯如下：
$ cleartool unco .
"Cannot_generate_name_for_checkout_in_view:.."
3). 確認View是否存在：
$ cleartool lsview ZZZ_UB_28100485_1179f3c9a6f
cleartool: Error: No matching entries found for view tag "ZZZ_UB_28100485_1179f3c9a6f".
$ cleartool rmview -tag ZZZ_UB_28100485_1179f3c9a6f
cleartool: Error: View tag not found: "ZZZ_UB_28100485_1179f3c9a6f".
cleartool: Error: Unable to remove view "ZZZ_UB_28100485_1179f3c9a6f".
上面結果表明View可能已經被刪除，但沒刪除乾淨，在VOB數據庫裏仍然保留着該View的checkout信息。後來跟研發人員確認了一下具體原因是昨天晚上我重啓View Server的時候，他們剛好在刪除一個臨時view(ZZZ_UB_28100485_1179f3c9a6f)，還沒刪除完進程就被Crash了。
故障處理：
1). 從VOB數據庫裏找出已刪除View的UUID(找出在該VOB中有checkout記錄的view的uuid)：
$ cleartool desc -long vob://LDS_Tools | grep ZZZ_UB_28100485_1179f3c9a6f.vws
cnbjclc102:D:/viewstore/ZZZ_UB_28100485_1179f3c9a6f.vws [uuid 908e3cc2.883c4444.9fa1.05:c1:08:5c:9f:60]
2). 刪除View在VOB上的所有關聯(references)：
$ cleartool rmview -force -all -uuid "908e3cc2.883c4444.9fa1.05:c1:08:5c:9f:60"
Removed references to view "908e3cc2.883c4444.9fa1.05:c1:08:5c:9f:60" from VOB "cnbjclc200:d:/vobs/LDS_SwModules_XSC.vbs".
Removed references to view "908e3cc2.883c4444.9fa1.05:c1:08:5c:9f:60" from VOB "cnbjclc200:D:/vobs/LD_SwModules_004.vbs".
Removed references to view "908e3cc2.883c4444.9fa1.05:c1:08:5c:9f:60" from VOB "cnbjclc200:D:/vobs/LDS_CCGlobTypes.vbs".
Removed references to view "908e3cc2.883c4444.9fa1.05:c1:08:5c:9f:60" from VOB "cnbjclc200:D:/vobs/LDS_SwModules_005.vbs".
Removed references to view "908e3cc2.883c4444.9fa1.05:c1:08:5c:9f:60" from VOB "cnbjclc200:D:/vobs/LD_SwModules_002.vbs".
Removed references to view "908e3cc2.883c4444.9fa1.05:c1:08:5c:9f:60" from VOB "cnbjclc200:D:/vobs/LDS_SwModule_AppLib.vbs".
Removed references to view "cnbjclc102:D:/viewstore/ZZZ_UB_28100485_1179f3c9a6f.vws" from VOB "/LDS_Tools".
Removed references to view "908e3cc2.883c4444.9fa1.05:c1:08:5c:9f:60" from VOB "cnbjclc200:D:/vobs/LD_SwModules_007.vbs".
..................................................................................................................................................................................
Removed references to view "908e3cc2.883c4444.9fa1.05:c1:08:5c:9f:60" from VOB "cnbjclc200:D:/vobs/LDS_Products_ITP.vbs".
Removed references to view "908e3cc2.883c4444.9fa1.05:c1:08:5c:9f:60" from VOB "cnbjclc200:D:/vobs/BA_Products_GSM_001.vbs".
..................................................................................................................................................................................
Removed references to view "908e3cc2.883c4444.9fa1.05:c1:08:5c:9f:60" from VOB "cnbjclc201:F:/vobstore/LDS_SwTest_Java.vbs".
Removed references to view "908e3cc2.883c4444.9fa1.05:c1:08:5c:9f:60" from VOB "/LD_SwModules_003".
Removed references to view "908e3cc2.883c4444.9fa1.05:c1:08:5c:9f:60" from VOB "cnbjclc200:D:/vobs/LD_SwModules_006.vbs".
Removed references to view "908e3cc2.883c4444.9fa1.05:c1:08:5c:9f:60" from VOB "cnbjclc201:F:/vobstore/CNBJ_Entry_002.vbs".
cleartool: Error: Error from VOB database: "/zhy_cnbjclc200_test".
cleartool: Error: Trouble opening VOB database: "/zhy_cnbjclc200_test".
cleartool: Error: Trouble removing references to view "908e3cc2.883c4444.9fa1.05:c1:08:5c:9f:60" from vob "cnbjw568:C:/temp_share/zhy_cnbjclc200_test.vbs".
Removed references to view "908e3cc2.883c4444.9fa1.05:c1:08:5c:9f:60" from VOB "cnbjclc201:F:/vobstore/CNBJ_Entry_003.vbs".
Removed references to view "908e3cc2.883c4444.9fa1.05:c1:08:5c:9f:60" from VOB "cnbjclc201:F:/vobstore/CNBJ_SwModules_OSDD.vbs".
Removed references to view "908e3cc2.883c4444.9fa1.05:c1:08:5c:9f:60" from VOB "cnbjclc201:F:/vobstore/CNBJ_Entry_UI_Loc.vbs".
3). 在刪除了View References之後，查看對應的View Storage Directory是否還存在，如存在請將其刪除。
