oracle database filesystem (DBFS) 简单配置文档

本机环境：11.2.0.1



1. download fuse package on website
http://fuse.sourceforge.net/
download 2.7.4 版本

看一下需要的rpm包

rpm -q kernel-devel

kernel-devel-2.6.18-308.el5

2. 安装fuse

tar -xzvf fuse-2.7.4.tar.gz

./configure

make

make install

/sbin/depmod

/sbin/modprobe fuse

chmod 666 /dev/fuse

echo "/sbin/modprobe fuse" >> /etc/rc.modules

3. 服务器端创建脚本

SQL> create smallfile tablespace dbfsts

2 datafile '+JAMES' size 200m ;

SQL> create user dbfsusr identified by xiaojun default tablespace dbfsts quota unlimited on dbfsts ;

SQL> grant create session, create table, create procedure, dbfs_role to dbfsusr;

SQL> conn dbfsusr/xiaojun

Connected.

create :

--fs1 会在在你客户端的挂载点下面创建一个fs1 的文件夹，并且会在dbfsusr用户下创建一个名为t_fs1 的表

SQL> @$ORACLE_HOME/rdbms/admin/dbfs_create_filesystem_advanced dbfsts fs1 nocompress nodeduplicate noencrypt non-partition

drop :

@$ORACLE_HOME/rdbms/admin/dbfs_drop_filesystem.sql file system name

4. 客户端配置：

创建文件夹（保证权限）

mkdir /u02

客户端使用这个命令即可挂载：

dbfs_client dbfsusr@james /u02

或者

nohup dbfs_client dbfsusr@james /u02 < passwd.txt &

然后看一下

[oracle@oel1 ~]$ df -h

Filesystem Size Used Avail Use% Mounted on

/dev/sda1 15G 7.5G 6.3G 55% /

/dev/sda5 2.0G 36M 1.9G 2% /tmp

/dev/sda2 15G 8.4G 5.4G 61% /u01

tmpfs 2.0G 367M 1.6G 19% /dev/shm

dbfs 448K 27K 421K 7% /u02

[oracle@oel1 ~]$ cp /u01/fuse-2.7.4.tar.gz /u02/fs1/

[oracle@oel1 ~]$ df -h

Filesystem Size Used Avail Use% Mounted on

/dev/sda1 15G 7.5G 6.3G 55% /

/dev/sda5 2.0G 36M 1.9G 2% /tmp

/dev/sda2 15G 8.4G 5.4G 61% /u01

tmpfs 2.0G 367M 1.6G 19% /dev/shm

dbfs 1.5M 531K 941K 37% /u02

可以看到这个文件系统是自动拓展的。

问题描述：

问题1：

挂载的时候发现问题Resource temporarily unavailable

下面文档ID 1434327.1 中有详细描述

笔者解决办法：重启电脑使用nouek 版本的内核。

问题2：

如果你使用dbfs_client挂载后，

ls 总是出现下面的错误：

Transport Endpoint is not connected

可能是版本的问题，没有细究，换了一个2.7.4 版本的fuse即可解决

客户端可以使用卸载命令

fusermount -u /u02

如果ls 还是这个错误，那么使用root用户登录

然后 umount /u02即可

文档详细内容：

ID 1434327.1

Resource temporarily unavailable

There is some issue in fuse in recent UEK kernel releases (e.g. 2.6.32-300.7.2.el5uek).

It's fixed in newer kernel (v2.6.32-300.11.1) which is due for a release. fuse user and library rpm is also due for a release.

Applies to:

Oracle Server - Enterprise Edition - Version: 11.2.0.1 to 11.2.0.3 - Release: 11.2 to 11.2

Linux x86

Linux x86-64

Description

After upgrade Linux kernel (e.g. 2.6.32-100.26.2.el5) to UEK (e.g. 2.6.32-300.10.1.el5uek) DBFS is not working.

Likelihood of Occurrence

1) OS upgrade from 2.6.32-100.26.2.el5 to: 2.6.32-300.10.1.el5uek (Linux UEK Kernel).

2) After boot the Linux server using the UEK kernel, DBFS reports the next problems:

$> nohup dbfs_client -o allow_other dbfs@EUSPRD /mnt_dbfs < ~/passwordfile.f &

$> df -k

df: `/mnt_dbfs': Resource temporarily unavailable

3) But, if the Linux box is booted again with the previous kernel release (non-UEK) then DBFS has not issues.

Possible Symptoms

1) DBFS fails after system boots using an UEK kernel.

2) DBFS development team confirmed:

There is some issue in fuse in recent UEK kernel releases (e.g. 2.6.32-300.7.2.el5uek).

It's fixed in newer kernel (v2.6.32-300.11.1) which is due for a release. fuse user and library rpm is also due for a release.

Workaround or Resolution

Therefore, please continue using the previous kernel release ((boot the system with the previous kernel release (non- UEK))) for your DBFS configuration, until the new kernel v2.6.32-300.11.1 is released.

官方文档位置

appdev.112/e25518.pdf

剩下的，大家慢慢研究吧。