Guest Andy Posted April 30, 2008 Posted April 30, 2008 Hi there. A year ago or so we built this monster server for files with a RAID-5 array it has just about 3TB of disk in it total. I just noticed today in Disk Management that we actually only partitioned 2048GB of it (I guess the limit for a single filesystem?) and that there is almost a 900GB 'unallocated space' block sitting there unused. Windows will not allow me to create an additional partition in that 900GB space. Any advice? -Drew
Guest James Park (pencil_ethics) Posted May 1, 2008 Posted May 1, 2008 RE: 3TB Raid, one 2048GB partition, will not let me create a 900GB one RE: 3TB Raid, one 2048GB partition, will not let me create a 900GB one Drew, If you are using MBR for the RAID array and a 512-byte sector size, you are capped by a 2 TB limit owing to a hard MBR limit of 2^32 blocks (2^32 blocks × 512 bytes per block (the standard sector size) = 2 TB). See http://www.microsoft.com/whdc/device/storage/LUN_SP1.mspx. You may also be interested in http://technet2.microsoft.com/windowsserver/en/library/7e567bb0-59c7-413d-914d-cdcb55c1bbda1033.mspx as well. Hope this helps. - James Park (pencil_ethics)
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