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Full Discussion: Compress dbexport on the fly
Operating Systems HP-UX Compress dbexport on the fly Post 302764357 by fella on Thursday 31st of January 2013 10:41:57 AM
Old 01-31-2013
Compress dbexport on the fly

Hi,

I have an old HPUX 10.20 server running Informix 7.23
I need to dump the database to get it off that hardware before it dies.
Unfortunately there is insufficient local diskspace to do so.

I have set up a linux box with sufficient disk onto which I can export the database.

Having configured an NFS link between the two, I ran
dbexport -o /remote
However, the HPUX server has NFS v2 which has a 2Gb file size limit.
Some of the tables being unloaded are over 2Gb in size so the dbexport process terminates when it reaches the first one.

Seems bundle PHNE_25234 would upgrade to NFS v3 but I cannot find it.

My only other idea on how to do this, is to compress the dbexport output on the fly before it is saved to the NFS disk, but I cannot figure out the syntax, or even if it's possible.

Does anyone know how I might achieve this?
Or if it might be possible to transfer the data on the fly another way? By ftp maybe?

Thank you for any help you can offer
 

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unshare_nfs(1M) 					  System Administration Commands					   unshare_nfs(1M)

NAME
unshare_nfs - make local NFS file systems unavailable for mounting by remote systems SYNOPSIS
unshare [ -F nfs] pathname DESCRIPTION
The unshare command makes local file systems unavailable for mounting by remote systems. The shared file system must correspond to a line with NFS as the FSType in the file /etc/dfs/sharetab. OPTIONS
The following options are supported: -F This option may be omitted if NFS is the first file system type listed in the file /etc/dfs/fstypes. FILES
/etc/dfs/fstypes /etc/dfs/sharetab ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWnfssu | +-----------------------------+-----------------------------+ SEE ALSO
nfsd(1M), share(1M), attributes(5) NOTES
If the file system being unshared is a symbolic link to a valid pathname, the canonical path (the path which the symbolic link follows) will be unshared. For example, if /export/foo is a symbolic link to /export/bar (/export/foo -> /export/bar), the following unshare command will result in /export/bar as the unshared pathname (and not /export/foo): example# unshare -F nfs /export/foo For file systems that are accessed by NFS Version 4 clients, once the unshare is complete, all NFS Version 4 state (open files and file locks) are released and unrecoverable by the clients. If the intent is to share the file system after some administrative action, the NFS daemon (nfsd) should first be stopped and then the file system unshared. After the administrative action is complete, the file system would then be shared and the NFS daemon restarted. See nfsd(1M) SunOS 5.10 6 May 2003 unshare_nfs(1M)
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