Cannot use additional storage on HARD drive replacement

I have a Dell Poweredge T105 with a SAS 6IR controller. It is running Windows Server 2008 R2. It has a 40Gb C: drive which has the OS on it. D: drive is used to store data and use the rest of the capacity of the disk.

Because of low disk space, I replaced the original Western Digital RE3 500 GB drives with Western Digital RE4 2 TB drives, they are configured as a RAID 1 array. After leaving each reader to reconstruct I was always showing an array of 500 GB that I understand that should be the case.

When I look in the Windows user interface for the controller it shows the additional 1.5 to the banks as reserved, Windows Explorer and disk management show only the 500 GB and none free unallocated space. Also the rate negotiated for new readers shows that 1.5 GB instead of 3 GB.

My questions are:-

1. I can I use the 1.5 to extra without losing data. How is that possible?

2. how to get readers to negotiate to 3 GB.

Thank you in advance.

You can only do with a SAS 6/iR controller. The 6 SAS is a controller of entry level with very limited capabilities. ((1) you cannot increase the size of an existing array, and 2) you cannot have multiple bays in the same set of disks.

PERC 6 / i controller is a controller of high-end and would give you more flexibility and options, but is not officially supported in a T105. With the PERC 6, you could create a second table on the disks (would be presented to the operating system as another "drive" for storage).

Your 'best' option is to make a backup and restore the data to create a new, larger RAID 1.

Tags: Dell Servers

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