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nedkelly
06-08-2010, 10:36 AM
I have a 7 SCSI CD drive tower given to me a while ago and finally decided to do something with it, and am going to make it a storage device.
This is what it looks like right now.
http://picasaweb.google.com/101418656305895670941/StorageMod02#5500674336928839954

Have two ideas in mind:
1. Run an atom board with a SATA raid card for redundancy purposes and 6 sata drives.
2. Or Just have 6 sata drives using one of these each. http://ascent.co.nz/productspecification.aspx?ItemID=368105

Opinions please.

SolMiester
06-08-2010, 11:50 AM
One of theses
http://ascent.co.nz/productspecification.aspx?ItemID=386737

Actually, at $76 bucks, I might get one myself for an old server!

Interesting how they only go up to 4 ports, need server class for more!

SolMiester
06-08-2010, 11:57 AM
Can get a 8 port Highpoint for around $650!, though probably isnt VMWare friendly!

nedkelly
06-08-2010, 12:07 PM
So you think option 1?
Also which raid would be the best to use?
With that card how many raid arrays can I make? Was originally thinking of using Raid 5 with 3 drives on logical drive and the same with the other 3

SolMiester
06-08-2010, 12:38 PM
So you think option 1?
Also which raid would be the best to use?
With that card how many raid arrays can I make? Was originally thinking of using Raid 5 with 3 drives on logical drive and the same with the other 3

Do you have to have 6 drives, most mATX are only 4 port and you could use onboard RAID (software)..
However for $76 extra you could have hardware RAID of up to 4 RAID 5 parity and use the onboard for mirror or both RAID 5

nedkelly
06-08-2010, 12:43 PM
Well the unit has 7X 5.25" drive slots, and Itx boards seem to only have 2 sata ports

SolMiester
06-08-2010, 01:10 PM
Well the unit has 7X 5.25" drive slots, and Itx boards seem to only have 2 sata ports

So, you will need the add-on card for 4 of the drives....and wont be able to do all 6 together, or you will have to shell out for an 8 port $650 card!

nedkelly
06-08-2010, 01:40 PM
yeah did not think I could have all 6 be one drive

nedkelly
27-08-2010, 01:54 PM
Sorry for the bump but thought it would be best to just continue on with the same thread.
I have the board I am going to use now, and want to decide what raid to use for the 4 sata drives on the raid card (when I get it)

SolMiester
27-08-2010, 02:18 PM
Raid 5 will give best capacity with fault tolerance so the 4th drive is the parity, so you get 3 x HDD capacity, RAID 10 the best performance with fault tolerance so 2 HDD capacity and RAID 0 the best performance with no fault tolerance

nedkelly
27-08-2010, 02:22 PM
Hmm thought RAID4 was the one where paritiy was stored on a single drive?

SolMiester
27-08-2010, 03:10 PM
Hmm thought RAID4 was the one where paritiy was stored on a single drive?


Raid 4?...only Netapp implements 4!...Most onboard or addon sata cards only do 1,0,5 or 10!
http://en.wikipedia.org/wiki/Standard_RAID_levels#RAID_4

nedkelly
28-08-2010, 11:54 AM
http://en.wikipedia.org/wiki/Standard_RAID_levels#RAID_5
Raid 5 distributes parity

A RAID 5 uses block-level striping with parity data distributed across all member disks.

SolMiester
28-08-2010, 12:30 PM
http://en.wikipedia.org/wiki/Standard_RAID_levels#RAID_5
Raid 5 distributes parity

Yeah thats right, end effect is you lose a drive for parity...guess i could of explained it better!

nedkelly
29-08-2010, 10:22 AM
Oh well thanks for this, RAID5 it is then