Hello all, I was just looking around doing a computer quote for someone and saw WD has 6TB Reds out on the market. I thought to myself, hm new parity drive, however I was unsure if UnRAID supports the 6TB models / size as of yet. Thought I would post a new topic on it to find out if there is support for them or future coming support, perhaps in future versions

 

Here is a link to the drive, as well as drive description... Thank you for anyone that can shed some light on the matter.

 

 

http://www.ncix.com/detail/western-digital-wd60efrx-6tb-red-22-99935-1493.htm

 

Western Digital WD60EFRX 6TB Red SATA3 6GB/S 64MB Cache 3.5in Hard Drive

 

Part #: WD60EFRX

There is no problem in unRAID using these drives (or even larger ones) as long as you are on unRAID v5 or later.  Of course your hardware must also support these drives.

However if you look through the forums here there has been a few issues with faulty drives (seems more so than the 4TB reds).

 

If you are going to buy a couple make sure you stress test them (pre-clear 3 cycles) before putting them into production just to be safe.

 

Cool right on, Thanks.

 

yes I have a few 4TB red's in my array already, no issues. In regards to preclear, we don't have to use the -A command with preclear on drives larger then 2TB anymore right ?

 

perhaps refresh my mind with the EXACT preclear command on drives larger then 2TB

 

going off memory i think it is

 

preclear_disk.sh /dev/sdX (where X is the drive letter a-z)

 

I recall having to do preclear_disk.sh -A /dev/sdX

Cool right on, Thanks.

 

yes I have a few 4TB red's in my array already, no issues. In regards to preclear, we don't have to use the -A command with preclear on drives larger then 2TB anymore right ?

 

I don't think so, but I tend to out of habit anyways.

so you use -A using sector 64 over sector 63 i think it was. I remember something after 2.4TB size it was not needed anymore, but I could be wrong :-/

so you use -A using sector 64 over sector 63 i think it was. I remember something after 2.4TB size it was not needed anymore, but I could be wrong :-/

 

Yup. I use -A -c 3 /dev/sdX for the 3 cycles of preclear. I think it should use sector 64 by default (if you have that as default setting in GUI under settings\disk settings). If disk settings is MBR aligned it's the same as -A I believe.

 

I've never used the -a or -A switches, since the default can be set in the GUI. Also, neither has any effect on drives >2.2TB.

preclear_disk.sh -?

You guys rock, I think that's all I needed to know for now, perhaps I will toss a 6TB in as parity in the future. Ill keep this post handy. Awesome support and fast reply, thank you everyone :-)

Im in the process of changing all my drives to WD 6TB Red's. Im now preclearing my 3rd drive and I have had no issues so far, but with a 53 hr preclear time 1 cycle is enough for me. With a 3 year warranty Im hoping like my other 3TB and 4TB reds the only issues Im going to get is a possible DOA drive. So many different views on the preclear, some say 1 so it doesn't stress out the drive unnecessary, others say 3. I have done 1 preclear on 36 x WD 3TB, 4TB and 6TB drives now on my own, and 2 friends servers and we have only had one fail after 14 months of use. 7 drives were DOA though. No 6TB's DOA yet, but we have only purchased 6 between us so far.