Anyone using ST4000VN000 ?

Flintstone

Limp Gawd
Joined
Nov 12, 2010
Messages
130
My 2TB HDDs are dying... One died while replacing another one here now in one of my 10 disk RAIDZ2 configurations, and I really have to do something with my setup (as well as cross my fingers for the next 8hrs or so - 10% done of 16TB...)

Anyone using or planing on installing ST4000VN000 yet? To me this seems like the only logical option at the moment...
 

Silhouette

Limp Gawd
Joined
Dec 14, 2006
Messages
205
I ordered a few yesterday. They probably won't arrive before the weekend, so I can't comment on how they work yet. I look forward to comparing them with my WD REDs.
 

mini-me01

Weaksauce
Joined
Sep 1, 2011
Messages
87
Yes, I have 20+ All tested perfectly on a 4 pass badblocks run and are all alive and well with ZFS after 4 weeks.
 

ponky

Limp Gawd
Joined
Nov 27, 2012
Messages
178
I'll have 4 of them very soon. Going to throw them in mdadm raid6. Was going for Hitachi 5k4000 but they disappeared completely (here in Finland at least).
 

Flintstone

Limp Gawd
Joined
Nov 12, 2010
Messages
130
Great guys, I'll try to aquire 8 of them. I'm leaning towards 8+8+8 raidz2 arrays instead of 10 disk since the rebuild times should be faster, might be a bit faster than 10 disks, possible to get a whole array on one controller, and it suits a possible 24-disk case better for the future.
 
Joined
Nov 18, 2005
Messages
663
I have one that I ordered to replace a ST4000DX000 in my ZFS RAIDZ3 setup. Seems fine. No complaints.
 

mini-me01

Weaksauce
Joined
Sep 1, 2011
Messages
87
Great guys, I'll try to aquire 8 of them. I'm leaning towards 8+8+8 raidz2 arrays instead of 10 disk since the rebuild times should be faster, might be a bit faster than 10 disks, possible to get a whole array on one controller, and it suits a possible 24-disk case better for the future.

You should read the ZFS best practices. I think you will find 8 disk raidz2 slower than 10 disk raidz2 with these 4k disks
 

mini-me01

Weaksauce
Joined
Sep 1, 2011
Messages
87
Do you have any reference to this.

I based my thinking on what sub.mesa said around the time I configured my 2TB drives (3 yrs ago) so things might have changed.

http://hardforum.com/showpost.php?p=1036395973&postcount=63

"128KiB for 10-disk RAID-Z2 = 128KiB / 8 = 16KiB. Ideally you want drives to be handling chunks of 32KiB - 128KiB for optimal performance."

Take a look at this post

Based on the example above, an 8 drive raidz2 vdev: 128K/(8-2)=21.3K = Bad alignment, not a multiple of 4K

In a 10 drive raidz2 vdev: 128K/(10-2)=128/8=16K
 

Flintstone

Limp Gawd
Joined
Nov 12, 2010
Messages
130
Ah :) Probably the reason I ended up with 10-disk arrays in the first place :) 3 years goes by so fast!
 

ShinyFalcon

Weaksauce
Joined
Dec 18, 2008
Messages
83
How is everyone's high fly writes? So far I filled the drive twice and there are 34 (0x22) counts of high fly writes.
 

utar

n00b
Joined
Oct 29, 2010
Messages
14
I have just bought five of these drives and am currently showing 7, 14, 14, 21, 64 high fly errors. The rest of the SMART attributes are fine.

I am thinking that perhaps this is vibration related. It is (hopefully) unlikely that I have five broken drives!
 

SioPao

Limp Gawd
Joined
Jun 17, 2003
Messages
202
I've ordered 6 myself, 2 of them have 1 high fly write error each over the last week. It's been a long while since I've bought new hard drives, so I'm still running tests on these and trying to better understand the smart values.
 
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