First NAS Box

I would not buy a Green drive. Get one of their Red NAS drives instead. Everything else should be fine.

...and can you explain why you want to buy 6x1TB drives? Seems to be pretty limited with just 3TB of Storage, and also uses lots of wattage because you run 6 drives.

Also, any reason you wanne go Raid10? Do you want to run any VMs that need higher I/O throughput?

Zitat von FLOOS525

( Not a big fan of software RAID on low powered CPU systems do to the overhead that is required, plus I already have the hardware.)

I don't use software raid either, but from my experience, nobody ever moaned here that mdadm would chew up ressources, at all.

Greetings
David

I would not go RAID 0. I would backup the 1st drive to the 2nd drive with Rsync or Crashplan free instead.

Zitat von tekkb

I would not go RAID 0

Zitat von FLOOS525

Will be running in Raid 10

Greetings
David

Read your post wrong.

Zitat von KM0201

I use a couple of Green drives... they are fine, so long as you don't run them in a RAID. Run them in a RAID, as I painfully discovered, and you will nuke them almost as fast as installing OMV to a flash drive.

I run my OMV on a usb flash drive and have 4 x 3TB WD Green drives in a RAID 5 array since January 2012.
I did run wdidle on the greens to change the spin down time.

The only issue I've had is from power off during use, smart gives them all a good bill of health (Touch wood)...

Zitat von KM0201

Well, you are luckier than me. The USB install issues are well known. The green drives.. I nuked three in less than a year, before I just did away with the raid.

No problems since.

Your experience is definitely not the norm.. Both issues have been hashed over here several times.

I think I've been lucky with my flash drives.
As for the Greens, had you run WDIDLE on the drives before setting them up in a RAID array? Otherwise they spin down every 8 seconds of inactivity!

Edit: if anyone is interested in the greens spin down issues there is an outline here,

Ah well the Greens are designed to aggressively park their heads every 8 seconds if not in use, the idea is it saves power.
Unfortunately in a raid/nas configuration that can increase the load_cycle_count such that within a year you can easily go beyond the 250,000 rating of the drive.

wdidle3.exe is a firmware flashing utility that allows you to set the interval the drive waits before spinning down. and parking the heads
I ran this on my drives before setting them up as a raid after reading about the green drives lack of suitability in NAS/Server configurations.

You can buy reds, surely WD have a valid reason for charging 15% more for "NAS" red drives beyond a simple firmware settings, but my Greens have performed just fine in a NAS since setting them not to park with wdidle3.

There is an in depth breakdown on hacking the WD greens here.

As for running off a usb flash drive, I don't recommend it if its avoidable, as others have said its not expensive to add a cheap low capacity HDD/SSD to most systems. In my case (the HPN40L) it would take a bit of modification/playing to set it up. I find it easier to run the flash memory plugin and just clonezilla (drive to drive) my USB flash drive to a back up drive every few months. Worst case if I fry one USB stick I roll back to another USB stick...

Zitat von KM0201

I use a couple of Green drives... they are fine, so long as you don't run them in a RAID. Run them in a RAID, as I painfully discovered, and you will nuke them almost as fast as installing OMV to a flash drive.

I also use a couple of Greens in a RAID 5 since Years. (Over 5 years already). At first with a QNAP, then switched to OMV. I receive a mail because of one bad sector since a few months but no problems at all. Actually I´m just waiting for one drive to fail to change them for 4TB Reds.

Waiting to fail is like giving up the data for good.

Replace it now or you may loose the data completely

Greetings
David

Zitat von WastlJ

I also use a couple of Greens in a RAID 5 since Years. (Over 5 years already). At first with a QNAP, then switched to OMV. I receive a mail because of one bad sector since a few months but no problems at all. Actually I´m just waiting for one drive to fail to change them for 4TB Reds.

Did you change the intellipark/spin down time with wdidle3?
How does your load_cycle_count look in smart?

Zitat von davidh2k

Waiting to fail is like giving up the data for good.

My second name is "Risky"

Zitat von davidh2k

Replace it now or you may loose the data completely

I do not see my RAID 5 as a backup. I have my backup at another USB Drive, connected to my NAS

Zitat von stewski

Did you change the intellipark/spin down time with wdidle3?

Nope.

Zitat von stewski

How does your load_cycle_count look in smart?

Will post that later!

Zitat von stewski

How does your load_cycle_count look in smart?

sda - 193 Load_Cycle_Count 0x0032 156 156 000 Old_age Always - 133688
sdb - 193 Load_Cycle_Count 0x0032 156 156 000 Old_age Always - 134149
sdc - 193 Load_Cycle_Count 0x0032 156 156 000 Old_age Always - 133872
sdd - 193 Load_Cycle_Count 0x0032 158 158 000 Old_age Always - 128313

Zitat von WastlJ

sda - 193 Load_Cycle_Count 0x0032 156 156 000 Old_age Always - 133688
sdb - 193 Load_Cycle_Count 0x0032 156 156 000 Old_age Always - 134149
sdc - 193 Load_Cycle_Count 0x0032 156 156 000 Old_age Always - 133872
sdd - 193 Load_Cycle_Count 0x0032 158 158 000 Old_age Always - 128313

I don't know how long your disks have been running but that load cycle count (for WD20EZRX) is getting on for half way to its rated value
That said, I've seen forum posts of people who have 800K LCC in one year, so maybe it's not a problem for you.