https://community.hpe.com/t5/windows-server-2003/raid-lost-configuration/m-p/3245979#M593 are u took the raidbackup (like configuration backup). that main partions is raid 1 or raid 5. raid 1 means, simply connect the scsi controller and u can Reterive the data Tue, 13 Apr 2004 04:10:57 GMT Saravanan_9 2004-04-13T04:10:57Z https://community.hpe.com/t5/windows-server-2003/raid-lost-configuration/m-p/3245978#M592 HI<BR />I put to new hards to my raid(Compaq), before was 2 hdd in mirror. After configuration a new partition in new hdd I restarted my Windows 2k server and Raid controller store only new partition - I lost my main partions. Is it possible restore my old configuration in Raid controller ? Is anybody can help ?<BR /><BR />Vassili Tue, 13 Apr 2004 00:28:34 GMT https://community.hpe.com/t5/windows-server-2003/raid-lost-configuration/m-p/3245978#M592 Vasily Kamenev 2004-04-13T00:28:34Z https://community.hpe.com/t5/windows-server-2003/raid-lost-configuration/m-p/3245979#M593 are u took the raidbackup (like configuration backup). that main partions is raid 1 or raid 5. raid 1 means, simply connect the scsi controller and u can Reterive the data Tue, 13 Apr 2004 04:10:57 GMT https://community.hpe.com/t5/windows-server-2003/raid-lost-configuration/m-p/3245979#M593 Saravanan_9 2004-04-13T04:10:57Z https://community.hpe.com/t5/windows-server-2003/raid-lost-configuration/m-p/3245980#M594 Depending on the version of your raidcontroler, the configuration is saved on the disks itself.<BR />However, I'm confused about your description of your configuration:<BR />- You had 2HDD in mirror: was this your c:(system drive) or your d: (data drive)?<BR />- If it was your system-drive, how were you able to restart your W2K server if you removed the mirror-set: this would leave you without an OS?<BR /><BR />So I presume it was your data drives (but why on a mirror-set?), so here goes what you should do to replace your data disks (I think because your setup/question is not 100procent clear):<BR />1) Put all services that store data on this disk (e.g. exchange, SQL....) to startup manual (document for which service you did this) and stop these services.<BR />2) Take a full backup of your logical data-disk (d:\ ?).<BR />3) Shutdown your machine<BR />4) Fysicaly remove old data-disks, and replace them with your new HDD<BR />5) Start you server, and using the compaq/HP array configuration utility, make a new array of your new HDD's and create a logical drive.<BR />6) With the OS running, perform a format of your new data-drive, and perform a restore of your old data<BR />7) Set all the correspondig services to startup automaticaly, and restat them.<BR />8) Your system should be up and running, with new HDD and more diskspace, right?<BR /> Fri, 16 Apr 2004 10:17:31 GMT https://community.hpe.com/t5/windows-server-2003/raid-lost-configuration/m-p/3245980#M594 Rudy Defruyt 2004-04-16T10:17:31Z