[Info-vax] Copying savesets over DECnet

[Marcin Szczecinski]

> Date: Wed, 26 Aug 2020 07:29:13 -0700 (PDT)
> From: Antonio Carlini <arcarlini at gmail.com>
> Subject: [Info-vax] Copying savesets over DECnet
> 
> I'm trying to recover some savesets from DLTIII tapes. I've got a working drive and a working tape but I seem to be hitting other issues.
> I've temporarily set up a bound volume set that I think might be big enough to hold the saveset ... but since everything else has failed, I expect that this will too.
> So my fallback was going to be to copy the saveset from tape to a remote node that has (much) more diskspace.
> 
> My attempt was less than successful:
> 
> $ copy/log mka500:*.* 1.51"system password"::DUA1:[DISK$USER_OBJ]
> %COPY-E-WRITEERR, error writing 1.51"system password"::DUA1:[DISK$USER_OBJ]OBJ.BCK;1
> -RMS-E-NETBTS, network buffer too small for 8192 byte record
> %COPY-W-NOTCMPLT, MKA500:[]OBJ.BCK;1 not completely copied
> 
> Now I'm sure there's a way of fixing this but as I stopped using VMS on a daily basis in ~2004 I seem to have forgotten how to fix that! Any reminders would be gratefully accepted.
> For the record, I realise that COPY isn't the _correct_ way to do this, it might trip up on read errors and the like, but if it _does_ work then I will have the saveset as required.
> Many thanks for any hints,
> 
> Antonio
> antonio ~ acarlini ~ com  <- put @ and . in the obvious places!

Antonio,
as I remeber (VMS 5.5-2 times) the block size on the tape can be up to 64k but on disk up to 
32k only.
So simple copy savesets from tape to the disk not always is reasoneable/possible (there is no 
networ issue at all).
Please check block size of the backup saveset before You start to try copy saveset from the 
tape to the disks. If it is not bigger than 32k then You have chance to make the working copy 
of saveset from tape to disk.  

Marcin Szczecinski