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Disk info added, network setup added, saga continues

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Marcin 2020-05-06 10:22:29 +02:00
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NAS_data_migration.md
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@ -20,11 +20,14 @@ As of now, transfer speeds are consistently around 20-25 MB/s with the bottlenec
|-|-|-|
| Device | WD MyCloud EX2 Ultra | WD MyCloud EX2 Ultra |
| Firmware | 2.31.204 | 2.31.204 |
| Drives | 2 x 3 TB | 2 x 4 TB |
| Drives | 2 x 3 TB WDC WD30EFRX-68N32N0, FwRev=82.00A82 | 2 x 4 TB WDC WD40EFRX-68N32N0, FwRev=82.00A82 |
| Raid | Raid-1 | Raid-0 |
| Encrypted | No | Yes |
| IP address | 192.168.1.54 | 192.168.1.53 |
Connected using Cat 5E cables via TP-Link TL-SG108 Gigabit switch.
## Testing
First, I enabled ssh access in both NASes via web-ui:
@ -184,4 +187,14 @@ Target write speed:
1073741824 bytes (1.0GB) copied, 41.367580 seconds, 24.8MB/s
```
Ok, so it would seem drive writing speed would be at fault. But why?
Ok, so it would seem drive writing speed would be at fault. But why? SMB transfers to the drive are faster, 50-70 MB/s, close to advertised. And it would seem that I am not the only one with such problem (SCP slow, SMB fast):
* https://forums.freebsd.org/threads/slow-nfs-smb-afp-but-fast-scp-read-performance.68077/#post-410296
However, the benchmarks around web seem to find scp an rsync much faster than SMB:
* https://squarism.com/2010/02/12/scp-vs-rsync-vs-smb-vs-ftp/
Having depleted my theories I decided to ask WD community:
https://community.wd.com/t/wd-mycloud-ex2-ultra-2x4tb-slow-write-speeds-over-ssh/250988