https://community.hpe.com/t5/disk-enclosures/adding-hard-drives-to-netserver-lh4/m-p/2566186#M2530 Mixing different drive sizes, cause them to use the lowest common device. So the 18GB would then only use 9GB of their capacity. You are better off creating a new array with the discs, and adding a new drive letter. Fri, 17 Aug 2001 22:45:16 GMT Theo Hill_1 2001-08-17T22:45:16Z https://community.hpe.com/t5/disk-enclosures/adding-hard-drives-to-netserver-lh4/m-p/2566185#M2529 What is the best practice?<BR />I have an HP LH4 running WNT4.<BR />2 18GB drives in a raid array<BR />They are divided into two drive letters C:(4GB) And D: (14GB)<BR /><BR />I want to add 4 9GB drives to the system. Should I: <BR /><BR />1. Add the 3 drives and make one array (not sure about mixing 9 and 18GB drive together...) then restore from backup.<BR /><BR />or <BR /><BR />2. Add the 3 drives, Raid them together and assign a new drive letter for more storage space.<BR /><BR />What is best practice? Thu, 16 Aug 2001 16:20:58 GMT https://community.hpe.com/t5/disk-enclosures/adding-hard-drives-to-netserver-lh4/m-p/2566185#M2529 David Johnson_7 2001-08-16T16:20:58Z https://community.hpe.com/t5/disk-enclosures/adding-hard-drives-to-netserver-lh4/m-p/2566186#M2530 Mixing different drive sizes, cause them to use the lowest common device. So the 18GB would then only use 9GB of their capacity. You are better off creating a new array with the discs, and adding a new drive letter. Fri, 17 Aug 2001 22:45:16 GMT https://community.hpe.com/t5/disk-enclosures/adding-hard-drives-to-netserver-lh4/m-p/2566186#M2530 Theo Hill_1 2001-08-17T22:45:16Z