We have an H700 internal raid card in a dell r610. Four 300gb drives are raided (level 5). I placed another identical drive in the drive array. The new drive is recognized, can become a global hot spare, and can be configured as a new Virtual Disk, but I can't get the existing virtual disk to use the 5th hard drive to extend the existing Virtual Disk. (The physical disk status is ready, but the choice for extending the existing virtual disk is grayed out).
An H800 Perc in the same r610 connected to an external drive array extends virtual disks with no problem. (3 disks raid was expanded to a 4 disk raid)
Is there a limit of the number of physical drives that an H700 can include in a RAID? The H700 has two cables, each seems to control 4 SAS drives in the internal drive array. Does this make some type of boundary for a virtual disk?
Firmware in the H700 is up to date, as are the r610 bios.
What am I missing?