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OpenVMS Hobbyist Program | Alpha Systems Forums | FreeAXP
Author FreeAXP Networking
cct
Member

Posts: 14
Joined: 13.08.20
Posted on October 22 2020 01:02
I am having issues moving files between my PWS433AU Alpha (currently HP VMS V8.3 with TCP V5.7 - ECO 5) and Free AXP running VSI VMS V8.4-2L1

PWS shows connected at 100 Mbits/sec

Free AXP is set to emulate DE500 (21143) and shows connected at 10 Mbits/sec. It has a dedicated NIC under Win 10. The system is well spec-ed, and not overloaded.

Both are connected to Draytek 6920

I tried to copy a 1.37Gb backup saveset from the PWS but had to kill it - I reckon it would have taken over 80 days!
I later managed to copy a 10Mb file, but that took over 3 hours.

I had better luck using scp, but was it was showing a transfer rate of about 20k

Any thoughts?

Chris
Author RE: FreeAXP Networking
Bruce Claremont
Moderator

Posts: 606
Joined: 07.01.10
Posted on October 23 2020 04:55
Are you using DECnet or FTP to copy files? I recommend DECnet.
Author RE: FreeAXP Networking
cct
Member

Posts: 14
Joined: 13.08.20
Posted on October 23 2020 09:07
I initially used DECNET, but that seemed untenable. Although DECNET is over TCP/IP thanks to TCP Services.

The scp copy is over TCP/IP

I am looking at moving the FreeAXP node to TCPware. We will see if that improves things...


Chris
Author RE: FreeAXP Networking
Bruce Claremont
Moderator

Posts: 606
Joined: 07.01.10
Posted on October 24 2020 05:43
Check the data rate at the ports on the switch and make sure they've negotiated a reasonable data rate. If auto-negotiate fails, it tends to default to 10Mb.
Author RE: FreeAXP Networking
cct
Member

Posts: 14
Joined: 13.08.20
Posted on October 25 2020 04:43
Even if it did, tye transfer rates are way below 10Mbps

I cannot actually see the negotiated speed, but Windows sees the NIC at 1Gbps


Chris
Author RE: FreeAXP Networking
cct
Member

Posts: 14
Joined: 13.08.20
Posted on October 25 2020 09:41
I just copied some large files from the PC using FTP. Transfer rate c. 1.9MB ps

Perhaps the issue is with my Alpha...


Chris
Author RE: FreeAXP Networking
Bruce Claremont
Moderator

Posts: 606
Joined: 07.01.10
Posted on October 26 2020 06:53
I'm betting its a network negotiation issue. If possible, hard set the switch port connected to the physical Alpha to 10Mb or 100Mb, depending upon the NIC installed.

Also, check your RMS settings. I use these:

$ sh rms
MULTI- | MULTIBUFFER COUNTS | NETWORK
BLOCK | Indexed Relative Sequential | BLOCK
COUNT | Disk Magtape Unit Record | COUNT
Process 32 | 32 32 32 32 32 | 127
System 32 | 32 32 32 32 32 | 127

Prolog Extend Quantity QUERY_LOCK
Process 0 4096 System
System 0 4096 Enabled

CONTENTION_POLICY
Process System
System Never




Edited by Bruce Claremont on October 26 2020 06:57
Author RE: FreeAXP Networking
fdsaiz
Member

Posts: 7
Joined: 23.07.20
Posted on May 21 2021 20:53
Just a pointer from my Tru64 installations on FreeAXP: by default, SRM has the network cards in half duplex 10mbps mode. To get full duplex 100mbps you have to manually set it at the chevron prompt:

>>> set ewa0_mode FastFD


At least under Tru64 I was _not_ able to change that setting (sysman), I had to change it in SRM.


Good luck
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