uh
Jurgen is correct...RAID 0 will "Stripe" the data across both disks and you'll get a speed increase of almost double, as well as double HDD space..BUT you will be left with NO Redundancy (Backup).
And I believe it's an IDE ATA Interface RAID, not SCSI, though the Sytem see's it somewhat like that.
For SCSI, you'd have to get a Controller Card that you'd add in and Hook up the Drives (New too, I believe) to that..
Below is my corrections to what you have now;
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2 IDE drives mirrored (array 1) 120GB x 2 in RAID1 = 120GB
total Drive space with Redundancy
4 logical partitions.
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If you want the same Redundancy and have 240GB available, you'll need 2 more IDE ATA Drives (not SCSI)....though your Onboard IDE Promise RAID Controller can't handle 4 drives in RAID anyway...which is why the SCSI suggestion was thrown out there --- cause since you need to upgrade to do this....you might as well go with SCSI for a Server....
though like was said -- you'd have to but ALL NEW SCSI DRIVES and a PCI SCSI Controller Card to achieve this....
for now, to add two more HDD the cheapest is to Buy 2 more IDE ATA HDD like you have now and another PCI IDE ATA Controller Card.
Basically with a RAID 3 or 5 Array, 1 out of the 3 drives minimum is for Parity and the data can be rebuilt if one drive fails.
Rememberr , not all RAID controllers are alike (either Onboard or as a PCI Adapter Card (usually IDE) in the way the use the Data Channels and the amount/speed of data tranfer can depennd on whether or not they're hooked to the Controller on separate cables (or not).
Though SCSI is different in the way it's Daisy chained to handle data tranfers.
some others can correct me possibly, if I'm off a bit with the SCSI stuff, and/or anything else...happy to learn
Peace to u Cathy
TT4U
Notification:
These are just my thoughts....and should be carefully measured against other opinions.
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