One of the servers I inherited in my current position was marked to be decommissioned, as it has been replaced by a new server (everything has already been moved across). The first problem I faced was the poor performance of the ERP package. It turns out that the new server is actually a significantly lower spec than the old one and the main reason for the "upgrade" was that they were constantly running out of disk space on the old server. I now want to move the ERP package back and get performance back to where it was previously.
The server in question is a xSeries 346 model 8840-31Y. As for the drives (currently 4 x 36GB as RAID 5 plus hot spare) the IBM web site states: Up to 1.8 TB hot-swap Ultra320 SCSI HDD storage.
I haven't obtained the price for IBM branded drives yet but past experience suggests I need to be sitting down and holding on when I do. As generic drives are much cheaper, and this is a small company where everything needs to be done as economically as possible, does anyone here know if I can replace the IBM drives with generics? I know there can be problems when drives with different firmware revisions are mixed but in this case I will be swapping the entire set.
Not that it should make any difference but the OS is Windows 2003 Std.
Edit: I forgot to mention, these have to be 15K RPM. 10K are too slow for the application.