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Hi EE's, I haven't been able to get back on this server since posting. It's a PowerEdge running RAID5 and I'm not 100% sure in hind site all the details as I was troubleshooting as I came across what I felt was the problem as a missing partition. <br />
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Sorry this isn't much help awarding points to all for the quick response time, closing this and will reopen if/when I get access to the server again.
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Hi EE's, I haven't been able to get back on this server since posting. It's a PowerEdge running RAID5 and I'm not 100% sure in hind site all the details as I was troubleshooting as I came across what I felt was the problem as a missing partition.

Sorry this isn't much help awarding points to all for the quick response time, closing this and will reopen if/when I get access to the server again.

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Disk 0: C: operating system, D: data partition, E: recovery all is well with this. <br />
<br />
Disk 1 no longer shows up in Disk Manager, there are 4 300G drives. Only thing noticable is one of the drives is predicting a failure I already replaced it and rebuilding the new drive. Doesn't make sense this would cause a partition to disappear.
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Disk 0: C: operating system, D: data partition, E: recovery all is well with this. 

Disk 1 no longer shows up in Disk Manager, there are 4 300G drives. Only thing noticable is one of the drives is predicting a failure I already replaced it and rebuilding the new drive. Doesn't make sense this would cause a partition to disappear.

partition missing SBS2008, PowerEdge 2900, PERC6 controller, RAID5

Small Business Server (SBS) is a line of server operating systems targeted at small businesses by bundling the operating system with a number of other Microsoft products that would normally need to be purchased or licensed separately. The most notable inclusions are Exchange, SQL Server, SharePoint and ISA/TMG (Microsoft's firewall and proxy server).

Servers are computing devices that are similar to desktop computers in that they have the same basic components, but are significantly different in size, configuration and purpose. Servers are usually accessed over a network, and many run unattended, without a computer monitor, input device, audio hardware or USB interfaces. Many servers do not have a graphical user interface (GUI), and are configured and managed remotely. Servers typically include hardware redundancy such as dual power supplies, RAID disk systems, and ECC memory, along with extensive pre-boot memory testing and verification. Critical components might be hot swappable, and to guard against overheating, servers might have more powerful fans or use water cooling.

Server Hardware

Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media used to retain digital data. In addition to local storage devices like CD and DVD readers, hard drives and flash drives, solid state drives can hold enormous amounts of data in a very small device. Cloud services and other new forms of remote storage also add to the capacity of devices and their ability to access more data without building additional data storage into a device.