Michael, 

Hello - and welcome to PostgreSQL (you're already on the right track!) 


----- Original Message ----- 
From: "Michael O'Donnell" <odonne...@usgs.gov> 
To: pgsql-admin@postgresql.org 
Sent: Tuesday, November 9, 2010 2:21:35 PM 
Subject: [ADMIN] PostgreSQL Windows 8.4 tablespaces on remote servers 





I am a relatively new user of PostgreSQL and I would like to create a 
tablespace on a remote 2008 standard x86 server. I am using a 2008 x64 R2 
server to host the PostgreSQL service. The host is a VM and the NTFS is not. 


I am able to create tablespaces on the Postgres server in various places. 
Afterword, I can successfully add databases to these tablespaces. However, when 
I try to create a tablespace on a different server, I can create part of the 
tablespace but it seems there is an error with creating the directories that 
are automatically generated. However, I do not get an error during the create 
tablespace step. If I proceed to generate a database on this table space, there 
is an error that certain folders do not exist. 


(Though I don't quite know what you mean by 'directories' here, it's probably 
safe to assume you're talking about the System Catalogs, which are indeed 
automatically created at a cluster's initialization). Have you properly 
initialized the database(s) in question? At first glance, It looks like you may 
not be accessing the database with sufficient permissions and/or may be 
managing to connect to an incompletely- or non-initialized cluster. (Your 
problem is interesting - wonder if such a connection is even possible?) 


One common gotcha: The default host-based access permissions file 'pg_hba.conf' 
allows for 'trusted' access by role 'postgres' from the local machine only. 
You'd have to set up access permissions for other machines/networks within the 
pg_hba.conf for each cluster. 




I have permissions set up for the service account and the database account for 
the folder on the remote server where I would like to create the tablespace. 
Based on what I have read, I only need to have the service account have 
permissions, but I have tried to open it up entirely for testing. I can create 
files and folders from the postgres server when navigating to the other server 
disk, and I have double checked the security settings for all relevant 
accounts. 


You should not need any acess at all to the server's disk itself, other than to 
do the initial setup and to edit the configuration files. Otherwise, all access 
is via the postgres daemons themselves. 




What I am trying to figure out is why I cannot do this and whether I have to 
use UNC paths. I have found some information on blogs, but no solutions. I have 
found very little information in the manuals as to how one sets up a tablespace 
on a remote server and whether UNC paths are required or not. 


I think you absolutely _do not_ need UNC paths. We are connecting to all of our 
remote server(s) via secured port access. 




Can anyone provide me with suggestions? 


Thank you, 
mike 


Pls let me know if any of this helps, 


Lou Picciano 

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