Error.log file seems like below.
There is no raid. i donnow how can fix this
2008-11-08 00:06:03.40 Server Microsoft SQL Server 2005 - 9.00.3042.00 (Intel X86)
Feb 9 2007 22:47:07
Copyright (c) 1988-2005 Microsoft Corporation
Enterprise Edition on Windows NT 5.2 (Build 3790: Service Pack 2)
2008-11-08 00:06:03.40 Server (c) 2005 Microsoft Corporation.
2008-11-08 00:06:03.40 Server All rights reserved.
2008-11-08 00:06:03.40 Server Server process ID is 6920.
2008-11-08 00:06:03.40 Server Authentication mode is MIXED.
2008-11-08 00:06:03.40 Server Logging SQL Server messages in file 'C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\LOG\ERRORLOG'.
2008-11-08 00:06:03.40 Server This instance of SQL Server last reported using a process ID of 5020 at 08.11.2008 00:05:56 (local) 07.11.2008 22:05:56 (UTC). This is an informational message only; no user action is required.
2008-11-08 00:06:03.40 Server Registry startup parameters:
2008-11-08 00:06:03.40 Server -d C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\DATA\master.mdf
2008-11-08 00:06:03.40 Server -e C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\LOG\ERRORLOG
2008-11-08 00:06:03.40 Server -l C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\DATA\mastlog.ldf
2008-11-08 00:06:03.40 Server SQL Server is starting at normal priority base (=7). This is an informational message only. No user action is required.
2008-11-08 00:06:03.40 Server Detected 2 CPUs. This is an informational message; no user action is required.
2008-11-08 00:06:03.57 Server Using dynamic lock allocation. Initial allocation of 2500 Lock blocks and 5000 Lock Owner blocks per node. This is an informational message only. No user action is required.
2008-11-08 00:06:03.59 Server Attempting to initialize Microsoft Distributed Transaction Coordinator (MS DTC). This is an informational message only. No user action is required.
2008-11-08 00:06:05.65 Server Attempting to recover in-doubt distributed transactions involving Microsoft Distributed Transaction Coordinator (MS DTC). This is an informational message only. No user action is required.
2008-11-08 00:06:05.65 Server Database mirroring has been enabled on this instance of SQL Server.
2008-11-08 00:06:05.65 spid5s Starting up database 'master'.
2008-11-08 00:06:05.68 spid5s Error: 9003, Severity: 20, State: 1.
2008-11-08 00:06:05.68 spid5s The log scan number (347:192:1) passed to log scan in database 'master' is not valid. This error may indicate data corruption or that the log file (.ldf) does not match the data file (.mdf). If this error occurred during replication, re-create the publication. Otherwise, restore from backup if the problem results in a failure during startup.
2008-11-08 00:06:05.68 spid5s Cannot recover the master database. SQL Server is unable to run. Restore master from a full backup, repair it, or rebuild it. For more information about how to rebuild the master database, see SQL Server Books Online.