$739 isnt too far off what I paid for my 1220 - Â£415, and that was Â£85 less than retail price as well
Got to love the UK
Worth every penny either way though
I guess I am just finding it as a "hard pill to swallow" when I have 1.9T with 6x400GB in Linux using SW RAID5 for a fraction of the cost (promise controllers $10-$30 on ebay) and disk cost only.
# df -h
/dev/md3 1.9T 360G 1.5T 20% /raid5
# mdadm -D /dev/md3
Version : 00.90.03
Creation Time : Fri Jun 30 09:17:12 2006
Raid Level : raid5
Array Size : 1953543680 (1863.04 GiB 2000.43 GB)
Device Size : 390708736 (372.61 GiB 400.09 GB)
Raid Devices : 6
Total Devices : 6
Preferred Minor : 3
Persistence : Superblock is persistent
So for the cost of an Areca card, I could buy a number of additional disks.
The problem for the newer motherboards is:
1) They do not have a lot of SATA ports. (most 4-6, some have 8 but the remaining ones are crippled)
2) There are NO or very few (I could not find any) PCIe cards with 4 SATA ports that are supported in Linux.
3) The best I could find was PCI-e x1 SiL chipset 2 port cards.
If one can fix the bottleneck problem of the regular PCI-bus and switch to PCI-e and have enough ports, building a large array would then become affordable.
Sure I know HW raid is faster and such, but for the 16 port Areca ~1000-1200, I could get another 12 250GB HDDs. Granted, if you need speed, get a HW raid. On SW RAID5, using the PCI bus (yeah, yuck/slow), I see 60-120MB/s reads and 38-42MB/s writes. If one could find a motherboard which enough slots that would utilize multiple PCI-e cards with > 2 SATA ports, one could build an amazing system for a fraction of the cost of HW raid.
There are also SATA port multipliers, these look interesting, but they are also quite new and not in the mainline kernel as of yet.
Any responses on this way?
Listen, you are either serious about running a reliable RAID, or you aren't. You can do it right, cheap, or fast. Pick TWO. Honestly if you hack a system together, you are introducing alot of uneeded complexity, go for the K.I.S.S theory. I can't get over someone wanting a RAID the size you are speaking of, but not wanting to put any money into it. I say you hack it together as cheaply as possible, and then lose all your data when it all goes wrong. Then you'll see how expensive your cheap solution actually was.