Hi,
i have a ex470 where i have installed 4 hdd and running linux (fedora14+amahi) but the thing is that it doenst see all my drive, it only see 2 of them
what could be the problem?

While I am not up to speed in the world of Linux I do not recall others who have installed it on there MSS reporting issues but I could be wrong. If you have taken your server apart in the past you may want to examine the actual backplane for damage as some have actually broken off Capacitor(s) during the insertion or extraction of the backplane.

Your backplane should look like the pic below:

_________________
Exploring the possibilities!

Migrated from WHS2011 to WS2012E: HIGHLANDER

~ Norco 4220 Enclosure
~ Gigabyte GA-990FXA-UD5
~ AMD Phenom II X4 995 3.2 GHz
~ 8 GB Corsair Vengeance DDR3 1600 (PC3 12800)
~ 3 Supermicro AOC-SASLP-MV8

hi, thx for your fast reply.

i have compared your pic with my board and everything looks fine on the board.
coud it be that the linux im running doenst support more then 2 hdd?

I wish I could answer that but I do know if you search through the forums you will find some users have posted about their experience with installing Linux on their MSS and the issues they had to over come. I wish I could be more help but its been quite sometime since I played with Linux and never really made any attempt to install it on an MSS.

_________________
Exploring the possibilities!

Migrated from WHS2011 to WS2012E: HIGHLANDER

~ Norco 4220 Enclosure
~ Gigabyte GA-990FXA-UD5
~ AMD Phenom II X4 995 3.2 GHz
~ 8 GB Corsair Vengeance DDR3 1600 (PC3 12800)
~ 3 Supermicro AOC-SASLP-MV8

I don't think so, also there is zero logic on the backplane just the aluminum caps and surface mount resistors/caps. Can you see the 2 drives in question on another system?

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HPjunkie:

all my drives work on both my laptop and desktop, even tried formating the drives so that it looks "new" when inserting in to mediasmart.

i have an update. just reinstalled the original WHS and it see all my hdd, so maybe the linux version that i ran didnt support muliple hdd connected with that board. i will try more troubleshooting with other/new versions linux

Hey emilc, did you make any further progress with this? I'm trying to get unRAID to run on my ex470 and I'm having a similar problem. unRAID only sees drives in bay 1 & bay 3. But, I can't go back to WHS because I can't get the server restore disc to "find" my server. That's the main reason I'm trying to get unRAID to work. I'm thinking about shopping for a dead ex470 that I can buy for parts but at the moment there aren't any on ebay. I'm hoping it turns out to be a software issue.

In the mean time I've got my extra drives in an eSATA expansion chassis.

Please let me know if you've had any success.

Are there any updates on this? I'm trying to install unRAID on an ex475 and it as well only sees bays 1 and 3. Any and all help is greatly appreciated!

Phinehas