I discovered one of our 250g HDD is bad in the SATA RAID (#2).
Four or five years ago I replaced one of them and at the time I was thinking that Mitel said the model numbers of the drives have to match, etc, so we ordered a matching model and I replaced the defective drive. I don't recall the particulars, like whether it auto mirrored, etc.
Looking about on forums it seems that possibly the model numbers don't have to match and we potentially could use a drive that is larger than 250g...however, in KB 06-5191-00213 it says:
Hard Drives Must Match in Size
Both hard drives in a redundant hard drive MXe Controller/MXe Server must be the same size. They can have different manufacturers, but the drive sizes must match. When comparing hard disk sizes, ensure that the accessible capacity of the drives is the same. For example, a 40 GB drive from one manufacturer could have a different accessible capacity than that of a 40 GB drive from another manufacturer.
Any guidance would be super helpful.
Jim