Seagate ST31500341AS 1.5TB

Jellen wrote:
But as I said in previes posts, I got a write result of 40MiB/sec on a two drive 500GiB Readynas Duo setup. Identical setup, identical network, idenctial optimized network settings (except jumboframes) So I hope to see some other speed results with these drives in in NV+ config, maybe then I can figure out how to optimize performance or buy other drives. Kind regards Jellen

You should be able to get 40-45MB/sec out of your NV+. The Infrant benchmarks were very low on the device, there was probably a bottleneck other than the readynas they tested. I was getting the speed they advertised in their benchmarks initially... As soon as I went from a linksys 8 port prosumer gig-e switch to a nice HP gig=e 24port switch I noticed a huge difference, upgraded my workstation and noticed more. my NV currently gets 40-45MB/sec

darwin wrote:

Jellen wrote: But as I said in previes posts, I got a write result of 40MiB/sec on a two drive 500GiB Readynas Duo setup. Identical setup, identical network, idenctial optimized network settings (except jumboframes) So I hope to see some other speed results with these drives in in NV+ config, maybe then I can figure out how to optimize performance or buy other drives. Kind regards Jellen You should be able to get 40-45MB/sec out of your NV+. The Infrant benchmarks were very low on the device, there was probably a bottleneck other than the readynas they tested. I was getting the speed they advertised in their benchmarks initially... As soon as I went from a linksys 8 port prosumer gig-e switch to a nice HP gig=e 24port switch I noticed a huge difference, upgraded my workstation and noticed more. my NV currently gets 40-45MB/sec

Indeed, also the speeds I expect, not an average of 45 MB/Sec but at least something more than a Constant! max of 23MB/sec.

What is your config of your Readynas NV+ ?

These are the optimal settings:
http://www.readynas.com/wp-content/uplo ... all_nv.jpg
http://www.readynas.com/wp-content/uplo ... all_nv.jpg

You’ll need to reboot the ReadyNAS after making the changes. These changes will provide the fastest performance possible on the ReadyNAS.

I already have my NV+ set to optimal settings (except jumbo frames) it's the same configuration as wit my duo.
But since the 1.5TB drives my write performance decreased by 40%
So wondering what performance other NV+ users are getting from these drives.
Kind regards.
Jellen

now this is interesting. Since posting my initial findings...

I was able to somehow get 101MB/sec (!) read from the readynas pro -> mac pro.

however, now Writes seem to have a weird buffering issue... It starts really fast, writes for a while and then goes down to nothing (literally KB/sec). I've tried this from 2 different Macs as well as a drag and drop copy from the NV to the Pro using the mac pro.



All 3 were great until about 1pm when they started having issues. The only difference is that I had a scheduled Online File System Consistency Check. A copy I had started before that hung, I ended up rebooting the readynas pro and doing a volume scan (no errors). Still 0 reallocated sectors.


Current settings:
Readynas Pro:
Ethernet 1 enabled, jumbo frames on, teaming off.
Ethernet 2 unplugged,
CIFS, NFS, FTP, Rsync: off
AFP (bonjour and appletalk), HTTP, HTTPS: on
Streaming services: off
Bonjour, UPnP: on
Performance: All enabled but "Enable Fast USB disk writes."
Disk Spin-down: off
All indicators solid green.

Mac Pro:
Ethernet: jumbo frames enabled (when I switched to that earlier, it seemed to have caused problems but changing it back didn't help.

There seems to be a ghost entry for Tornado (AFP) (name of the rnp). When I try connecting to it, it fails; when I connect to it via IP, it connects fine and shows up differently.

Any thoughts?

hmm perhaps the different firmware versions between your drives is acting up in a raid configuration...
Shouldn't happen but with these drives...

Jellen wrote:
What is your config of your Readynas NV+ ?

Jumbo frames: on
CIFS, AFP, HTTPS: on
uPnP On
Bonjour on
4x ST3750640AS 750GB drives
All performance options enabled

The biggest improvement in bandwidth was putting a real gig-e switch in. (27MB/sec -> ~40MB/sec). Also, this is an older NV, non NV+

Jellen wrote:
hmm perhaps the different firmware versions between your drives is acting up in a raid configuration... Shouldn't happen but with these drives...

well, it WAS working GREAT earlier. guess it's time to go try to undo everything.

bdl99 wrote:

So after a bit of a rollercoaster ride I now have my ReadyNAS with 4 1.5Tb Seagate ST31500341AS drives installed (3 x SD17 firmware upgraded to SD1A and 1 x CC1H ) The good news I've seen no signs of stuttering or hanging since expansion. I've just watched a movie while copying other files with no issues. The only issue to date had been one Reallocated Sector on disk four less than 24 hours after expansion.

Four days later and I had another reallocated sector (making 2) and then yesterday a third. For those that RMA'd disks, how many reallocated sectors did it take before you RMA'd the disk? For those who purchased through Amazon did you RMA to Amazon or directly with Seagate?

The first three disks are holding steady at 0 so hopefully they came from a good batch.

bdl99 wrote:

bdl99 wrote: So after a bit of a rollercoaster ride I now have my ReadyNAS with 4 1.5Tb Seagate ST31500341AS drives installed (3 x SD17 firmware upgraded to SD1A and 1 x CC1H ) The good news I've seen no signs of stuttering or hanging since expansion. I've just watched a movie while copying other files with no issues. The only issue to date had been one Reallocated Sector on disk four less than 24 hours after expansion. Four days later and I had another reallocated sector (making 2) and then yesterday a third. For those that RMA'd disks, how many reallocated sectors did it take before you RMA'd the disk? For those who purchased through Amazon did you RMA to Amazon or directly with Seagate? The first three disks are holding steady at 0 so hopefully they came from a good batch.

For one of my drives, I got up to something like 32 reallocated sectors within a week to ten days of having first installed the drive. For another drive, I think I had something like 6 or 8 reallocated sectors within the first week. I RMA'd both drives to NewEgg without any fuss. In fact, I'm expecting to receive the replacement drives today, which might be a good thing because a third drive has now developed 2-3 reallocated sectors (and I've had the drives for less than a month). If you search this thread and the other thread on the 1.5TB drives (in the compatibility forum) for my name, you'll find my post that contains the exact number of errors.