We always had some error events on our Exchange 5.5: MSExchangeIS (465) Synchronous read page checksum error -1018 ((1:129823 1:4294967295) (4294967295-4294967295) (0-693591239)) occurred. Please restore the databases from a previous backup. MSExchangeIS (465) Synchronous read page checksum error -1018 ((1:129823 1:4294967295) (4294967295-4294967295) (0-693591420)) occurred. Please restore the databases from a previous backup. MSExchangeIS (465) A read of the database file E:\exchsrvr\MDBDATA\PRIV.EDB between offsets 0x000000001FB20000 and 0x000000001FB20FFF failed after 16 failed read attempts with error -1018. There is a software or hardware problem affecting the database drive that must be corrected to preserve database integrity. Contact Microsoft Product Support Services. For more information, search the Microsoft Knowledge Base at http: Event ID number. MSExchangeIS (465) Online defragmentation of database 'E:\exchsrvr\MDBDATA\PRIV.EDB' terminated prematurely after encountering unexpected error -1018. But it worked just fine. Now we are planning Exchange 5.5 to 2003 migration, and after running g:\>eseutil /g /ispriv /v /x >e:\privchk.txt, discovered the following: 0 10 20 30 40 50 60 70 80 90 100 |----|----|----|----|----|----|----|----|----|----| checking SystemRoot SystemRoot (OE) SystemRoot (AE) checking system table MSysObjectsShadow MSysObjects Name RootObjects rebuilding and comparing indexes checking table "1-1EBBE4" (26207) checking data checking index "?T668f+B67aa-Te06+Q674a" (38867) checking index "MsgFolderIndexPtagDeletedOn" (26211) checking index "RuleMsgFolderIndex" (26210) checking index "MsgFolderIndex7" (26209) rebuilding and comparing indexes checking table "1-24" (52) checking data checking long value tree (65) ERROR: orphaned LV (lid 49546, size 3476, refcount 0). Non-corrupting error ERROR: node [127768:0]: leaf node check failed ERROR: orphaned LV (lid 49547, size 1418240, refcount 0). Non-corrupting error ERROR: node [127769:0]: leaf node check failed ERROR: page 129823: error -1018 on read ERROR: node [124172:1]: subtree check (page 163082) failed with err -1018 ERROR: error -1018 at line 3186 of G:\ese97\src\ese\repair.cxx ERROR: node [2564106:0]: subtree check (page 124172) failed with err -1018 ERROR: error -1018 at line 3186 of G:\ese97\src\ese\repair.cxx ERROR: node [161:0]: subtree check (page 2564106) failed with err -1018 ERROR: error -1018 at line 3186 of G:\ese97\src\ese\repair.cxx ERROR: error -1018 at line 2968 of G:\ese97\src\ese\repair.cxx ERROR: error -1018 at line 2702 of G:\ese97\src\ese\repair.cxx ERROR: error -1018 at line 1664 of G:\ese97\src\ese\repair.cxx Long-Value table will be rebuilt Indexes will be rebuilt Long-Value refcounts will be rebuilt . checking table "Folders" (6) checking data checking long value tree (71) ERROR: orphaned LV (lid 2031, size 80, refcount 0). Non-corrupting error ERROR: node [582816:4]: leaf node check failed ERROR: orphaned LV (lid 2032, size 88, refcount 0). Non-corrupting error ERROR: node [582816:6]: leaf node check failed ERROR: orphaned LV (lid 2033, size 92, refcount 0). Non-corrupting error ERROR: node [582816:8]: leaf node check failed ERROR: orphaned LV (lid 2034, size 40, refcount 0). Non-corrupting error ERROR: node [582816:10]: leaf node check failed ERROR: orphaned LV (lid 2035, size 64, refcount 0). Non-corrupting error ERROR: node [582816:12]: leaf node check failed ERROR: orphaned LV (lid 2036, size 64, refcount 0). Non-corrupting error ERROR: node [582816:14]: leaf node check failed ERROR: orphaned LV (lid 2037, size 64, refcount 0). Non-corrupting error ERROR: node [582816:16]: leaf node check failed ERROR: orphaned LV (lid 2038, size 36, refcount 0). Non-corrupting error ERROR: node [582816:18]: leaf node check failed ERROR: orphaned LV (lid 2039, size 76, refcount 0). Non-corrupting error ERROR: node [582816:20]: leaf node check failed ERROR: orphaned LV (lid 2040, size 36, refcount 0). Non-corrupting error ERROR: node [582816:22]: leaf node check failed ERROR: orphaned LV (lid 2041, size 76, refcount 0). Non-corrupting error ERROR: node [582816:24]: leaf node check failed ERROR: orphaned LV (lid 2042, size 76, refcount 0). Non-corrupting error ERROR: node [582816:26]: leaf node check failed ERROR: orphaned LV (lid 2043, size 76, refcount 0). Non-corrupting error ERROR: node [582816:28]: leaf node check failed ERROR: orphaned LV (lid 2044, size 36, refcount 0). Non-corrupting error ERROR: node [582816:30]: leaf node check failed ERROR: orphaned LV (lid 2045, size 76, refcount 0). Non-corrupting error ERROR: node [582816:32]: leaf node check failed ERROR: orphaned LV (lid 2046, size 36, refcount 0). Non-corrupting error ERROR: node [582816:34]: leaf node check failed ERROR: orphaned LV (lid 2047, size 36, refcount 0). Non-corrupting error ERROR: node [582816:36]: leaf node check failed ERROR: orphaned LV (lid 2048, size 36, refcount 0). Non-corrupting error ERROR: node [582816:38]: leaf node check failed checking index "*T668f+Q6749+S3001+Q6748 409" (31800) checking index "?T668f+Q6749+S3001+Q6748 409" (31799) checking index "FoldersIndex13" (12) checking index "FoldersIndex10" (11) checking index "FoldersIndex8" (10) checking index "FoldersIndex7" (9) checking index "FoldersIndex6" (8) checking index "FoldersIndex5" (7) rebuilding and comparing indexes checking table "Global" (45) checking data rebuilding and comparing indexes checking table "IndexAge" (32) checking data rebuilding and comparing indexes checking table "Mailbox" (18) checking data checking index "MailboxIndex3" (35987) checking index "MailboxIndex2" (19) rebuilding and comparing indexes checking table "Message Tombstone" (31) checking data rebuilding and comparing indexes checking table "Msg" (14) checking data .. checking long value tree (103) ERROR: orphaned LV (lid 43248, size 1716, refcount 0). Non-corrupting error ERROR: node [25556:0]: leaf node check failed ERROR: orphaned LV (lid 43576, size 4128, refcount 0). Non-corrupting error ERROR: node [33638:0]: leaf node check failed ERROR: orphaned LV (lid 43581, size 1715, refcount 0). Non-corrupting error ERROR: node [20677:1]: leaf node check failed ERROR: orphaned LV (lid 43591, size 1717, refcount 0). Non-corrupting error ERROR: node [19933:0]: leaf node check failed ERROR: orphaned LV (lid 43614, size 1721, refcount 0). Non-corrupting error ERROR: node [22258:0]: leaf node check failed ERROR: orphaned LV (lid 43629, size 10029, refcount 0). Non-corrupting error ERROR: node [19904:0]: leaf node check failed ERROR: orphaned LV (lid 43660, size 1576, refcount 0). Non-corrupting error ERROR: node [21358:0]: leaf node check failed ERROR: orphaned LV (lid 43665, size 1723, refcount 0). Non-corrupting error ERROR: node [22751:0]: leaf node check failed ERROR: orphaned LV (lid 43776, size 1714, refcount 0). Non-corrupting error ERROR: node [19810:0]: leaf node check failed ERROR: orphaned LV (lid 43786, size 1722, refcount 0). Non-corrupting error ERROR: node [20676:0]: leaf node check failed ERROR: orphaned LV (lid 43796, size 1724, refcount 0). Non-corrupting error ERROR: node [20779:0]: leaf node check failed ERROR: orphaned LV (lid 43808, size 1724, refcount 0). Non-corrupting error ERROR: node [21110:0]: leaf node check failed ERROR: orphaned LV (lid 43855, size 1723, refcount 0). Non-corrupting error ERROR: node [20335:0]: leaf node check failed ERROR: orphaned LV (lid 43860, size 1729, refcount 0). Non-corrupting error ERROR: node [19936:0]: leaf node check failed ERROR: orphaned LV (lid 43962, size 1728, refcount 0). Non-corrupting error ERROR: node [17024:0]: leaf node check failed ERROR: orphaned LV (lid 44202, size 10636, refcount 0). Non-corrupting error ERROR: node [19809:0]: leaf node check failed ERROR: orphaned LV (lid 87718, size 7448, refcount 0). Non-corrupting error ERROR: node [223784:0]: leaf node check failed ERROR: orphaned LV (lid 87771, size 1645, refcount 0). Non-corrupting error ERROR: node [225526:0]: leaf node check failed ERROR: orphaned LV (lid 87809, size 3013, refcount 0). Non-corrupting error ERROR: node [226960:0]: leaf node check failed ERROR: orphaned LV (lid 87811, size 1225, refcount 0). Non-corrupting error ERROR: node [227937:0]: leaf node check failed ERROR: orphaned LV (lid 87812, size 3400, refcount 0). Non-corrupting error ERROR: node [227937:2]: leaf node check failed ERROR: orphaned LV (lid 87957, size 1091, refcount 0). Non-corrupting error ERROR: node [235586:0]: leaf node check failed ERROR: orphaned LV (lid 87958, size 1445, refcount 0). Non-corrupting error ERROR: node [235586:2]: leaf node check failed ERROR: orphaned LV (lid 88417, size 34670, refcount 0). Non-corrupting error ERROR: node [259990:0]: leaf node check failed ERROR: orphaned LV (lid 88418, size 12361, refcount 0). Non-corrupting error ERROR: node [259998:1]: leaf node check failed ERROR: orphaned LV (lid 88419, size 1497, refcount 0). Non-corrupting error ERROR: node [260002:1]: leaf node check failed ERROR: orphaned LV (lid 88939, size 4979, refcount 0). Non-corrupting error ERROR: node [286144:0]: leaf node check failed ERROR: orphaned LV (lid 89220, size 1123, refcount 0). Non-corrupting error ERROR: node [302151:0]: leaf node check failed ERROR: orphaned LV (lid 165713, size 1289, refcount 0). Non-corrupting error ERROR: node [483290:0]: leaf node check failed ERROR: orphaned LV (lid 166163, size 1959, refcount 0). Non-corrupting error ERROR: node [435984:0]: leaf node check failed ERROR: orphaned LV (lid 167040, size 2281, refcount 0). Non-corrupting error ERROR: node [450903:0]: leaf node check failed ERROR: orphaned LV (lid 167041, size 3638, refcount 0). Non-corrupting error ERROR: node [450903:2]: leaf node check failed ERROR: orphaned LV (lid 174033, size 1228, refcount 0). Non-corrupting error ERROR: node [495915:0]: leaf node check failed ERROR: orphaned LV (lid 175784, size 17049, refcount 0). Non-corrupting error ERROR: node [500878:0]: leaf node check failed ERROR: orphaned LV (lid 175785, size 1672, refcount 0). Non-corrupting error ERROR: node [495862:1]: leaf node check failed ERROR: orphaned LV (lid 176642, size 1206, refcount 0). Non-corrupting error ERROR: node [492320:0]: leaf node check failed ERROR: orphaned LV (lid 176645, size 2288, refcount 0). Non-corrupting error ERROR: node [492320:2]: leaf node check failed ERROR: orphaned LV (lid 176847, size 2288, refcount 0). Non-corrupting error ERROR: node [440450:0]: leaf node check failed ERROR: orphaned LV (lid 176954, size 1520, refcount 0). Non-corrupting error ERROR: node [436349:0]: leaf node check failed ERROR: orphaned LV (lid 177825, size 13718, refcount 0). Non-corrupting error ERROR: node [177846:0]: leaf node check failed ERROR: orphaned LV (lid 177826, size 3105, refcount 0). Non-corrupting error ERROR: node [147378:1]: leaf node check failed ERROR: orphaned LV (lid 184949, size 1093, refcount 0). Non-corrupting error ERROR: node [490824:0]: leaf node check failed ERROR: orphaned LV (lid 190590, size 1401, refcount 0). Non-corrupting error ERROR: node [455037:0]: leaf node check failed ERROR: orphaned LV (lid 190591, size 1737, refcount 0). Non-corrupting error ERROR: node [455037:2]: leaf node check failed ERROR: orphaned LV (lid 190592, size 2223, refcount 0). Non-corrupting error ERROR: node [455038:0]: leaf node check failed ERROR: orphaned LV (lid 193708, size 2315, refcount 0). Non-corrupting error ERROR: node [507693:0]: leaf node check failed ERROR: orphaned LV (lid 193709, size 1288, refcount 0). Non-corrupting error ERROR: node [507693:2]: leaf node check failed ERROR: orphaned LV (lid 193711, size 1882, refcount 0). Non-corrupting error ERROR: node [507691:0]: leaf node check failed ERROR: orphaned LV (lid 193712, size 1278, refcount 0). Non-corrupting error ERROR: node [507691:2]: leaf node check failed ERROR: orphaned LV (lid 193713, size 1512, refcount 0). Non-corrupting error ERROR: node [498936:1]: leaf node check failed ERROR: orphaned LV (lid 193714, size 1278, refcount 0). Non-corrupting error ERROR: node [498936:3]: leaf node check failed ERROR: orphaned LV (lid 193715, size 1507, refcount 0). Non-corrupting error ERROR: node [498674:1]: leaf node check failed ERROR: orphaned LV (lid 193716, size 1278, refcount 0). Non-corrupting error ERROR: node [498674:3]: leaf node check failed ERROR: orphaned LV (lid 193717, size 1500, refcount 0). Non-corrupting error ERROR: node [496383:1]: leaf node check failed ERROR: orphaned LV (lid 193718, size 1278, refcount 0). Non-corrupting error ERROR: node [496383:3]: leaf node check failed ERROR: orphaned LV (lid 194054, size 5677, refcount 0). Non-corrupting error ERROR: node [490946:0]: leaf node check failed ERROR: orphaned LV (lid 195383, size 1079, refcount 0). Non-corrupting error ERROR: node [455125:0]: leaf node check failed ERROR: orphaned LV (lid 195384, size 1360, refcount 0). Non-corrupting error ERROR: node [455125:2]: leaf node check failed ERROR: orphaned LV (lid 195385, size 1073, refcount 0). Non-corrupting error ERROR: node [455125:4]: leaf node check failed ERROR: orphaned LV (lid 195681, size 3686, refcount 0). Non-corrupting error ERROR: node [107729:0]: leaf node check failed ERROR: orphaned LV (lid 195682, size 1242, refcount 0). Non-corrupting error ERROR: node [107729:2]: leaf node check failed ERROR: orphaned LV (lid 197674, size 11865, refcount 0). Non-corrupting error ERROR: node [488643:0]: leaf node check failed ERROR: orphaned LV (lid 197675, size 1559, refcount 0). Non-corrupting error ERROR: node [483376:1]: leaf node check failed ERROR: orphaned LV (lid 199787, size 12697, refcount 0). Non-corrupting error ERROR: node [507683:0]: leaf node check failed ERROR: orphaned LV (lid 199788, size 2652, refcount 0). Non-corrupting error ERROR: node [498933:1]: leaf node check failed ERROR: orphaned LV (lid 199789, size 1201, refcount 0). Non-corrupting error ERROR: node [498933:3]: leaf node check failed ERROR: orphaned LV (lid 199812, size 12697, refcount 0). Non-corrupting error ERROR: node [497606:0]: leaf node check failed ERROR: orphaned LV (lid 199813, size 2652, refcount 0). Non-corrupting error ERROR: node [500873:1]: leaf node check failed ERROR: orphaned LV (lid 199814, size 1201, refcount 0). Non-corrupting error ERROR: node [500873:3]: leaf node check failed ERROR: orphaned LV (lid 199849, size 12697, refcount 0). Non-corrupting error ERROR: node [495414:0]: leaf node check failed ERROR: orphaned LV (lid 199850, size 2652, refcount 0). Non-corrupting error ERROR: node [495287:1]: leaf node check failed ERROR: orphaned LV (lid 199851, size 1201, refcount 0). Non-corrupting error ERROR: node [495287:3]: leaf node check failed ERROR: orphaned LV (lid 205407, size 4230, refcount 0). Non-corrupting error ERROR: node [452887:0]: leaf node check failed ERROR: orphaned LV (lid 205408, size 1285, refcount 0). Non-corrupting error ERROR: node [452888:1]: leaf node check failed ERROR: orphaned LV (lid 206174, size 10569, refcount 0). Non-corrupting error ERROR: node [483331:0]: leaf node check failed ERROR: orphaned LV (lid 206184, size 2690, refcount 0). Non-corrupting error ERROR: node [470051:0]: leaf node check failed ERROR: orphaned LV (lid 206185, size 1667, refcount 0). Non-corrupting error ERROR: node [470051:2]: leaf node check failed ERROR: orphaned LV (lid 206186, size 1106, refcount 0). Non-corrupting error ERROR: node [470049:1]: leaf node check failed ERROR: orphaned LV (lid 207376, size 1057, refcount 0). Non-corrupting error ERROR: node [431092:0]: leaf node check failed ERROR: orphaned LV (lid 207512, size 1159, refcount 0). Non-corrupting error ERROR: node [439450:0]: leaf node check failed ERROR: orphaned LV (lid 207693, size 2686, refcount 0). Non-corrupting error ERROR: node [237805:0]: leaf node check failed ERROR: orphaned LV (lid 207698, size 3710, refcount 0). Non-corrupting error ERROR: node [430972:0]: leaf node check failed ERROR: orphaned LV (lid 207704, size 3419, refcount 0). Non-corrupting error ERROR: node [442446:0]: leaf node check failed ERROR: orphaned LV (lid 207706, size 4663, refcount 0). Non-corrupting error ERROR: node [439899:0]: leaf node check failed ERROR: orphaned LV (lid 207707, size 1062, refcount 0). Non-corrupting error ERROR: node [437629:1]: leaf node check failed ERROR: orphaned LV (lid 207708, size 1565, refcount 0). Non-corrupting error ERROR: node [437629:3]: leaf node check failed ERROR: orphaned LV (lid 207709, size 1024, refcount 0). Non-corrupting error ERROR: node [437629:5]: leaf node check failed ERROR: orphaned LV (lid 207710, size 1024, refcount 0). Non-corrupting error ERROR: node [437630:1]: leaf node check failed ... rebuilding and comparing indexes .. ............................................. ERROR: error -1206 at line 951 of G:\ese97\src\ese\repair.cxx Operation terminated with error -1206 (JET_errDatabaseCorrupted, non-db file or corrupted db) after 1270.906 seconds. Is it safe to perform migration with PRIV.EDB in this condition? I would use Eseutil /P, but not sure what it will destroy. If its not safe to migrate, may Eseutil /D correct the problems? (PRIV.EDB is 14.5 GB, and The database has 2688 megabytes of free space after online defragmentation has terminated.) Thanks for your help.