NAS326 - Upgrade from F.1 to F.9 and writes speeds are bad
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Tim Swenson
Posts: 2 Freshman Member
I upgraded my NAS326 from Firmware v5.21(AAZF.1) to V5.21(AAZF.9). Since then my write speeds have dropped to about .5 MBps. A file transfer from my client used to take about 5 min is now taking 30-45 min. Read speeds are working just fine.
I have ssh'd to the shell as admin and looked at ifconfig. I see that there are some network errors on TX. When idle, I see about 1 every 120 seconds. When doing reads, the errors are 12 for 120 seconds. When doing writes, the errors jump to 1235 for 120 seconds.
I've done a Wireshark network capture during both read and writes to the NAS. On reads, all is well. On writes, I see a large number of duplicate ACK's and packet retransmissions. Dup Acks are 783 and retransmissions are 276 out of 5706 packets.
I have screenshots of the writes from the NAS web page. I have the packet captures and I have the ifconfig output if needed.
The question is how is this issue resolved.
#NAS_August_2020
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Accepted Solution
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The transfer was made with CIFS/SMB. The internal drive in the NAS is a WD hard drive, WDC WD20EFRX-68EUZN0.
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All Replies
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What kind of transfer method did you use? FTP / CIFS / web-GUI?
Do you use SSD on the internal disk for NAS326?0 -
The transfer was made with CIFS/SMB. The internal drive in the NAS is a WD hard drive, WDC WD20EFRX-68EUZN0.
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