NWSSTG not recognized after Restore - Revision history

PoC: Adjusted to reality

2026-03-01T01:35:20Z

Adjusted to reality

← Older revision		Revision as of 03:35, 1 March 2026
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	== Restore ==		== Restore ==
	If you remove the storage spaces for some reason and just copy back the subdirectories with their files ~~(also in binary mode)~~, the spaces do not show up in <code>wrknwsstg</code>. This ~~behavior~~ is ~~not the result of wrong access rights~~.		If you remove the storage spaces for some reason and just copy back the subdirectories with their files, the spaces do not show up in <code>wrknwsstg</code>. This is also true if you restore from a save file.

	Apparently, storage spaces are registered elsewhere in the system.		Apparently, storage spaces are registered elsewhere in the system.

	If you used the <code>sav</code> command to put the storage spaces into a save file, the restore routine does what it takes to make the spaces known to the system. The drawback is that this is a rather slow and I/O intensive way. It also requires temporary space to copy the data into the save file.

	== Making them reappear ==		== Making them reappear ==
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	Next, move the '''contents''' of the renamed directories to the newly created storage space directories, in turn overwriting the newly created storage spaces.		Next, move the '''contents''' of the renamed directories to the newly created storage space directories, in turn overwriting the newly created storage spaces.

	The old storage spaces now show up again and can be assigned to a network server description.		The old storage spaces now show up again and can be assigned to a network server description. Don't forget to delete the now empty now empty restored directory.

	== See also ==		== See also ==

PoC: PoC moved page NWSSTG not recognized after plain FTP-Restore to NWSSTG not recognized after Restore without leaving a redirect: Doesn't work with rst command, also

2026-03-01T01:32:44Z

PoC moved page NWSSTG not recognized after plain FTP-Restore to NWSSTG not recognized after Restore without leaving a redirect: Doesn't work with rst command, also

← Older revision		Revision as of 03:32, 1 March 2026
(No difference)

PoC: New

2023-01-05T11:11:54Z

New

New page

The Integrated PC Servers (IPCS) cards for AS/400 machines use a file within the IFS for the guest OS to be used as Disk (container), just like VMDK files being used by various VMware products. This is also the case for newer OS/400 releases acting as Hypervisor for subordinate LPARs. These files are located in ''/qfpnwsstg''.

== Backup ==
A fast way to get the files off the system (backup, archival) is to just copy them via FTP, in binary mode, and while the assigned network server description is varied off.

Each storage space has two files in a subdirectory with the storage space's name:
* QFPCONTROL
* QFPCLTSTG1

It's not clear, nor publicly documented what kind of information is recorded in QFPCONTROL.

== Restore ==
If you remove the storage spaces for some reason and just copy back the subdirectories with their files (also in binary mode), the spaces do not show up in <code>wrknwsstg</code>. This behavior is not the result of wrong access rights.

Apparently, storage spaces are registered elsewhere in the system.

If you used the <code>sav</code> command to put the storage spaces into a save file, the restore routine does what it takes to make the spaces known to the system. The drawback is that this is a rather slow and I/O intensive way. It also requires temporary space to copy the data into the save file.

== Making them reappear ==
To make the system aware of the storage spaces being restored by FTP, use some means (e. g.) <code>wrklnk '/qfpnwsstg/*'</code> to rename the directories somehow.

Then create new, tiny "fake" storage spaces, but with the desired name:
CRTNWSSTG NWSSTG(NEW_C) NWSSIZE(5)

Next, move the '''contents''' of the renamed directories to the newly created storage space directories, in turn overwriting the newly created storage spaces.

The old storage spaces now show up again and can be assigned to a network server description.

== See also ==
* [[The Integrated PC Servers]]
* [[NWSSTG filesystem offset]]

[[Category: System Administration‏‎]]