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PostPosted: Sun May 17, 2015 5:33 am 
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Joined: Sun May 17, 2015 5:24 am
Posts: 3
Hi guys

I am planning to buy nas540 but my concerns are about the reading and writing speeds.

I have a router that has gigabit ethernet ports and my pc is directly connected to router and the connection says it is gigabit.

If i buy nas540 it will be connected directly to the router as my pc with cat6 cable.

At this time i have some bluray files and their size is around 50gb.

For 50gb single .iso file

If i copy 50gb iso file to NAS540 what will be my writing speeds to NAS540? Under the circumstances i mentioned above? And also copy that file from NAS540 to the same gigabit connected pc?

Also i searched on the internet but couldnt find any review showing writing and reading speeds.if you know one can you please post a link?

Kind regards


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PostPosted: Sun May 17, 2015 7:02 am 
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Joined: Sat Jun 08, 2013 9:02 am
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I have 2 WD40EFRX-68W (4TB) in raid1 and i get about 45 MB/s while copying a 4 GB iso file.

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Zyxel NSA325 [4.71(AAAJ.0) + FFP]
Zyxel NAS540 [V5.20(AATB.0)]


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PostPosted: Sun May 17, 2015 7:09 am 
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jagdtigger wrote:
I have 2 WD40EFRX-68W (4TB) in raid1 and i get about 45 MB/s while copying a 4 GB iso file.



Could you ever see the 80 mb/s or over for any file copy or read proccess?

Isnt it slow for copying around 45 mb/s?


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PostPosted: Sun May 17, 2015 7:38 am 
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Joined: Sat Jun 08, 2013 9:02 am
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No, the max read speed i ever seen is 70 MB/s. But its more than enough for home use ;) .

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Zyxel NSA325 [4.71(AAAJ.0) + FFP]
Zyxel NAS540 [V5.20(AATB.0)]


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PostPosted: Sun May 17, 2015 9:08 am 
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Joined: Sun May 17, 2015 5:24 am
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jagdtigger wrote:
No, the max read speed i ever seen is 70 MB/s. But its more than enough for home use ;) .



Can you clarify the details

What speeds do you get when copying a file from pc to nas?

And

When copying a file from nas to pc?

Thanks in advance


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PostPosted: Fri May 22, 2015 6:08 pm 
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Joined: Sat Jun 08, 2013 9:02 am
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PC -> NAS about 45 MB/s
NAS -> PC about 65 MB/s

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Zyxel NSA325 [4.71(AAAJ.0) + FFP]
Zyxel NAS540 [V5.20(AATB.0)]


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PostPosted: Sun Sep 13, 2015 5:19 am 
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Joined: Thu Jul 30, 2015 12:28 pm
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jagdtigger wrote:
PC -> NAS about 45 MB/s
NAS -> PC about 65 MB/s


I get same speeds. The only thing that bothers me on my NAS540 is the download speed with transmission. I get max 10MB. Is there a way to solve that? On my PC I have 20-30MB.


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PostPosted: Sat Sep 19, 2015 7:20 pm 
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Joined: Sat May 02, 2015 10:21 am
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Quote:
The only thing that bothers me on my NAS540 is the download speed with transmission. I get max 10MB. Is there a way to solve that? On my PC I have 20-30MB.

Maybe it's CPU-intensive?

My NSA540 in other CPU-intensive tasks is about 2 times slower than eg. an Intel 743 based laptop and about 4 times slower than an Intel Pentium 6100 laptop. (Both running Ubuntu LTS 12.04.5)

Best regards

_________________
325v2 RAID 1, 2xWDEZEX-75M2NA0 1 TB, v4.80(AALS.1), MetaR
540 RAID 10, 4xWDEZEX-00BN5A0 1TB, v5.11(AATB.2), MetaR
MEDION P89626 ST1500DL003-9VT1 1.5 TB, v1.01(UZD.0)_20120203, MetaR
Clients mit Ubuntu 14.04, 12.04 LTS / WIN 7 / XP


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 Post subject: drawsko
PostPosted: Mon Oct 05, 2015 6:30 am 
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Joined: Tue Jan 08, 2013 7:00 am
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What are the internal transfers between folders on the same disk?


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PostPosted: Tue Mar 29, 2016 10:00 am 
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Joined: Sun Mar 27, 2016 1:05 pm
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jagdtigger wrote:
PC -> NAS about 45 MB/s
NAS -> PC about 65 MB/s



Do you use FFP ? I get lower transfers even from NAS SSD <> PC SSD (around 40MB/s both directions), however this is mounted NTFS partition.

Well, maybe it is good enough for home use, but I use NAS to store VM HDD images and I would prefer to have transfer around 80 MB/s. Especialy when my friend gets about 90 MB/s with cheap Samsung NAS ...


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PostPosted: Sat Apr 02, 2016 7:28 pm 
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Joined: Sat Jun 08, 2013 9:02 am
Posts: 115
No ffp, im using the built in sharing capabilities of the NAS(i have two WD red[wd40efrx-68w] in RAID1). The shares are mounted as network drives on my PC running win7. BTW for VM's the random r/w is more important then sequential...

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Zyxel NSA325 [4.71(AAAJ.0) + FFP]
Zyxel NAS540 [V5.20(AATB.0)]


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PostPosted: Fri Apr 08, 2016 9:11 am 
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Joined: Sun Mar 27, 2016 1:05 pm
Posts: 10
Hi,
I belive it depends on VM purpose but you are correct that random R/W performance is the key, especially when you use software which cache data on hdd (photoshop for example). But when you use application which uses mainly dram which is stored on client side where VM runs, then from server standpoint upload is more important to provide good boot performance and data fetch into guest os memory via network.

BTW - I can observe some weird behaviour when using different services.

For example when I use winrar extract (the option which force going through local disks temp, not extracting in archive dir directly) I get about 90 MB/s copy to destination network dir from local drive (via windows explorer), but when I use builded FTP proto I get transfers ~40 MB/s. Also when I try to do the oridinary copy via windows explorer transfer speeds are similiar to FTP.

I tested HDD with disk copier (Diskology Disk Jockey) and transfer where about 100 MB/s. I assume that it is accessing disk in different way than os and drive can be considered as perfectly fragmented in this scenario but I am not an storage expert.

Perhaps, you could recommend some software which would test network performance and bypass HDD's (from memory to memory via network)?


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PostPosted: Mon Apr 11, 2016 3:52 pm 
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Joined: Mon Apr 11, 2016 3:50 pm
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With SSD the transfer rate is over 100 mbytes/s


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PostPosted: Fri Aug 05, 2016 8:07 pm 
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Joined: Sun Jul 31, 2016 4:26 pm
Posts: 5
I get from computer to NAS write speed ~95MB/s.

When I have any active torrents with Transmission (download/upload speed doesn't even matter... they could be almost 0 also) the write speed to NAS drops to 55MB/s. So I disabled torrenting and all other media and other servers in NAS and use it just for as network drives now. It just can't handle several tasks at once.

(Seems it's another "Zyxel" not in the good sense. TOO WEAK CPU. Have had such problems with Zyxel ZyWALL's previously, when supposedly 100Mbps ZyWALL drops it's max bandwidth to crawling 15Mbps when you enable IDS and anomaly detection and some other security measures)


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