Guest cmcnamee@gmail.com Posted September 27, 2007 Posted September 27, 2007 Hi Folks, I admit I am most likely doing something wrong. I have a new server with 2.7TB RAID 5 volume (spread among 7 500GB disks), I have a 100GB NTFS boot partition and a 2TB NTFS data partition. I have 743GB of unallocated space left within the RAID container that is recognized by the windows Disk Management utility. If I right click the 743GB of unallocated space the create partition option is grayed out. If I delete the 2TB data partition I see two sections of unallocated space (2TB & 743GB) rather than one large section unallocated space. Could anyone point me to what I am doing wrong here? -Curt
Guest John Toner [MVP] Posted September 27, 2007 Posted September 27, 2007 Re: 2.7TB RAID Volume can only partition 2.1TB I would guess that your partition is not a GPT disk. MBR disks do not support partitions larger than 2TB. See the following for more details: http://www.microsoft.com/whdc/device/storage/GPT_FAQ.mspx To convert a disk from MBR to GPT, this is a destructive process. You would need to delete all partitions on the disk, convert to GPT, then re-create any partitions (and restore data as needed). Regards, John Visit my blog: http://msmvps.com/blogs/jtoner <cmcnamee@gmail.com> wrote in message news:1190912463.287021.106440@o80g2000hse.googlegroups.com... > Hi Folks, I admit I am most likely doing something wrong. I have a new > server with 2.7TB RAID 5 volume (spread among 7 500GB disks), I have a > 100GB > NTFS boot partition and a 2TB NTFS data partition. I have 743GB of > unallocated space left within the RAID container that is recognized by > the > windows Disk Management utility. If I right click the 743GB of > unallocated > space the create partition option is grayed out. If I delete the 2TB > data > partition I see two sections of unallocated space (2TB & 743GB) rather > than > one large section unallocated space. > > Could anyone point me to what I am doing wrong here? > -Curt >
Guest WorkingHard Posted September 27, 2007 Posted September 27, 2007 Re: 2.7TB RAID Volume can only partition 2.1TB Your disk controller will most likely not create virtual disks larger than 2 TB. <cmcnamee@gmail.com> wrote in message news:1190912463.287021.106440@o80g2000hse.googlegroups.com... > Hi Folks, I admit I am most likely doing something wrong. I have a new > server with 2.7TB RAID 5 volume (spread among 7 500GB disks), I have a > 100GB > NTFS boot partition and a 2TB NTFS data partition. I have 743GB of > unallocated space left within the RAID container that is recognized by > the > windows Disk Management utility. If I right click the 743GB of > unallocated > space the create partition option is grayed out. If I delete the 2TB > data > partition I see two sections of unallocated space (2TB & 743GB) rather > than > one large section unallocated space. > > Could anyone point me to what I am doing wrong here? > -Curt >
Guest cmcnamee@gmail.com Posted September 27, 2007 Posted September 27, 2007 Re: 2.7TB RAID Volume can only partition 2.1TB On Sep 27, 10:42 am, "John Toner [MVP]" <jto...@DIE.SPAM.DIE.mvps.org> wrote: > I would guess that your partition is not a GPT disk. MBR disks do not > support partitions larger than 2TB. See the following for more details: > > http://www.microsoft.com/whdc/device/storage/GPT_FAQ.mspx > > To convert a disk from MBR to GPT, this is a destructive process. You would > need to delete all partitions on the disk, convert to GPT, then re-create > any partitions (and restore data as needed). > > Regards, > John > > Visit my blog:http://msmvps.com/blogs/jtoner > > <cmcna...@gmail.com> wrote in message > > news:1190912463.287021.106440@o80g2000hse.googlegroups.com... > > > Hi Folks, I admit I am most likely doing something wrong. I have a new > > server with 2.7TB RAID 5 volume (spread among 7 500GB disks), I have a > > 100GB > > NTFS boot partition and a 2TB NTFS data partition. I have 743GB of > > unallocated space left within the RAID container that is recognized by > > the > > windows Disk Management utility. If I right click the 743GB of > > unallocated > > space the create partition option is grayed out. If I delete the 2TB > > data > > partition I see two sections of unallocated space (2TB & 743GB) rather > > than > > one large section unallocated space. > > > Could anyone point me to what I am doing wrong here? > > -Curt John, that is exactly the problem. Thank you so much for your help. I have to split my original RAID volume into two volumes (100GB Boot & 2.6TB data). The 100GB volume will be recognized as a regular MBR disk in windows, however the 2.6TB volume will become a GPT disk and I should be good to go. Thanks again for your help! -Curt
Guest Mathieu CHATEAU Posted September 27, 2007 Posted September 27, 2007 Re: 2.7TB RAID Volume can only partition 2.1TB Hello, think about chkdsk time & defrag & Disaster recovery... -- Cordialement, Mathieu CHATEAU http://lordoftheping.blogspot.com <cmcnamee@gmail.com> wrote in message news:1190912463.287021.106440@o80g2000hse.googlegroups.com... > Hi Folks, I admit I am most likely doing something wrong. I have a new > server with 2.7TB RAID 5 volume (spread among 7 500GB disks), I have a > 100GB > NTFS boot partition and a 2TB NTFS data partition. I have 743GB of > unallocated space left within the RAID container that is recognized by > the > windows Disk Management utility. If I right click the 743GB of > unallocated > space the create partition option is grayed out. If I delete the 2TB > data > partition I see two sections of unallocated space (2TB & 743GB) rather > than > one large section unallocated space. > > Could anyone point me to what I am doing wrong here? > -Curt >
Guest Ben Posted September 27, 2007 Posted September 27, 2007 Re: 2.7TB RAID Volume can only partition 2.1TB On Sep 27, 10:42 am, "John Toner [MVP]" <jto...@DIE.SPAM.DIE.mvps.org> wrote: > I would guess that your partition is not a GPT disk. MBR disks do not > support partitions larger than 2TB. See the following for more details: > > http://www.microsoft.com/whdc/device/storage/GPT_FAQ.mspx Aren't these three statements true? If so, you could setup a MBR style partition as long it was a Dynamic Volume and had correct cluster size. a) Maximum size of dynamic volume is "maximum volume size of the file system used to format the volume." (http://technet.microsoft.com/en-us/library/bb457110.aspx) b) Maximum size for NTFS volume is 2^32 clusters (minus a cluster). Some examples: For 64 KB cluster, max size of NTFS volume is 256 TB. For 4 KB cluster, max size of NTFS volume is 16 TB. (http://www.microsoft.com/windowsserversystem/storage/ getstorfacts.mspx) c) Maximum size of Basic volume is 2TB regardless of cluster size. (http://technet.microsoft.com/en-us/library/bb457110.aspx)
Guest John Toner [MVP] Posted September 27, 2007 Posted September 27, 2007 Re: 2.7TB RAID Volume can only partition 2.1TB The following is from http://www.microsoft.com/windowsserversystem/storage/getstorfacts.mspx --- Maximum size of a dynamic volume - 2 TB for simple and mirrored (RAID-1) volumes. Up to 64 TB for spanned and striped (RAID-0) volumes. (2 TB per disk with a maximum of 32 disks per volume.) Up to 62 TB for RAID-5 volumes. (2 TB per disk with a maximum of 32 disks per volume and 2 TB used for parity.) --- Just making a disk dynamic does not bypass the limits of MBR. Regards, John Visit my blog: http://msmvps.com/blogs/jtoner "Ben" <blargg27@gmail.com> wrote in message news:1190928581.448573.109080@w3g2000hsg.googlegroups.com... > On Sep 27, 10:42 am, "John Toner [MVP]" <jto...@DIE.SPAM.DIE.mvps.org> > wrote: > > I would guess that your partition is not a GPT disk. MBR disks do not > > support partitions larger than 2TB. See the following for more details: > > > > http://www.microsoft.com/whdc/device/storage/GPT_FAQ.mspx > > Aren't these three statements true? If so, you could setup a MBR > style partition as long it was a Dynamic Volume and had correct > cluster size. > > a) Maximum size of dynamic volume is "maximum volume size of the file > system used to format the volume." > (http://technet.microsoft.com/en-us/library/bb457110.aspx) > > > b) Maximum size for NTFS volume is 2^32 clusters (minus a cluster). > Some examples: > For 64 KB cluster, max size of NTFS volume is 256 TB. > For 4 KB cluster, max size of NTFS volume is 16 TB. > (http://www.microsoft.com/windowsserversystem/storage/ > getstorfacts.mspx) > > > c) Maximum size of Basic volume is 2TB regardless of cluster size. > (http://technet.microsoft.com/en-us/library/bb457110.aspx) >
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