Networker

Re: [Networker] RPC Errors backing up Windows hosts

2007-09-04 17:01:38
Subject: Re: [Networker] RPC Errors backing up Windows hosts
From: Jim Ruskowsky <jimr AT JEFFERIES DOT COM>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Tue, 4 Sep 2007 16:52:51 -0400
On Thu, 30 Aug 2007 17:20:01 -0400, Andrew Dietz
<andrew.dietz AT OIT.GATECH DOT EDU> wrote:
>Within the past month as we've started to add Windows hosts to our mix
>of backups with NetWorker Server version 7.3.2 running under Solaris 10,
>
>* hyperion.ece.gatech.edu:F:\ save: RPC error: RPC send operation
>failed.  A network connection could not be established with the host.
>
>Has anyone encountered something similar? We're running out of ideas!
>
Andrew,

We had a similar issue last year, backing up windows 2003 clients to a
solaris 10 storage node.  After much discussion and escalation with EMC,
they produced the following suggestion which seemed to help in our case.  It
involved two registry entries on the windows clients.

Set "TcpMaxConnectRetransmissions" to 5
Set "TcpMaxDataRetransmissions" to 9

Here's where to find them.  I also suggest reading the descriptions at the
microsoft site to understand what they do.

HKEY_LOCAL_MACHINE
     \SYSTEM
          \CurrentControlSet
               \Services:
                    \Tcpip
                         \Parameters
..
..
..
 
TcpMaxConnectRetransmissions
Key: Tcpip\Parameters
Value Type: REG_DWORD-number
ValidRange: 0-255 (decimal)
Default: 2

TcpMaxDataRetransmissions
Key: Tcpip\Parameters
Value Type: REG_DWORD-number
Valid Range: 0-0xFFFFFFFF
Default: 5

Hope this helps

Jim

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