NAS Build 2019 Step 7 - Hard Disks!

If this is your first time seeing this series, I recommend starting at the beginning.

Building A New Nas

You can find all the other posts below, this is the 8th post in the series.

Hard Drives are in!

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The drives have arrived and have been unpacked.

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Total storage is 64TB with 16x4TB 7200RPM Enterprise SAS drives. One drive will be a cold spare that will not be used but will remain on hand. I will be using raidz2 in ZFS which is similar to Raid 6 meaning two drives will be parity drives and the rest will be data. This will give me 52TB of usable storage and the ability to lose two drives. I am also considering 3xRaidz or 3 Raid 5 arrays stripped together (Raid 0) for 48TB of total storage and three hard drives dedicated parity across three unique arrays.

Removing the drive cages

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There are three 5 bay drive cases in the Rosewill 4U case. The first one happened to be really hard to get out, the second two came out fairly easily.

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As you can see, the bays are not hot swap and will end up being a nightmare for cable management.

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Each cage can fit 5 drives which are mounted using slide rails.

Power Cable

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This part I really didn't like. I had to take the four 4X Sata power cords and salvage one of them to get enough connectors to make 3 5X Sata power cables. One for each drive bay.

I found the connectors very difficult to remove. While I am at it, I am removing the 3.3V power line as some drives you shuck will include a 3.3V disable which we don't want. In my case I don't have to worry about this but if I ever use other drives I want the cables to be ready.

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You can see once you pop the cap off these cables, the connectors are punch down. Because there is no special tool for it, it's a lot of manual work and frustration.

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The goal is to remove two connectors from the three final cables and move them down and use the extra connectors from the unused cable to put 5 connectors perfectly lined up for the drive spacing.

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This is what the final cable looks like when attached to the SAS cables.

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My spacing was a little off but they line perfectly. Now I have to make two more and install them into the case. This will be a mess of cabling.

I will install one drive bay of 5 drives, then test them. Then I will install the second bay by themselves and test them, and finally test the third alone. Once I know all the drives are good, I will connect all three bays for a total of 15 drives and then I can setup the ZFS pool(s).

NAS 2019 Build Series

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