Using multiple file systems to distribute spool I/O on primary computer
You can distribute I/O activity across multiple file systems to improve throughput.
/aiw
file system contains the spool directories for the entire RICOH ProcessDirector system. You can extend the /aiw
file system by defining
additional file systems on the primary computer and mounting them under the /aiw
file system to distribute spool processing.
It is recommended that you create an additional volume group for the additional file system.
- Stop the system:
- On each secondary computer, log in as the RICOH ProcessDirector system user (aiw1 is the default) and enter stopaiw.
- On the primary computer, log in as the RICOH ProcessDirector system user and enter stopaiw.
- On the primary computer, log in as the root user.
- Enter this command to change to the spool directory:
- cd /aiw/aiw1/spool
- If the spool directory does not exist, the command fails and you see this message:
No such file or directory. If that happens, enter these commands:
- cd /aiw/aiw1
- mkdir spool
- chown systemuser:group spool,where systemuser is the RICOH ProcessDirector system user (aiw1 is the default) and group is the RICOH ProcessDirector group (aiwgrp1 is the default).
- chmod 775 spool
- cd /aiw/aiw1/spool
- From the
aiw/aiw1/spool
directory, enter this command to create a new spool directory on the primary computer:- mkdir newspooldirectory
- newspooldirectory is any valid directory name on your system.
- Use SMIT (System Management Interface Tool) to define the new file system and where
it is to be mounted. The mount point is:
/aiw/aiw1/spool/newspooldirectory
. - Enter these commands to specify the appropriate permissions:
- cd /aiw/aiw1/spool
- chown systemuser:groupnewspooldirectory
- chmod 775 newspooldirectory
- If you have secondary servers, you must export a new directory or
file system:
- To export the
newspooldirectory
directory to remote secondary servers use rw,no_root_squash,sync mount options. - Configure each remote AIX and Linux secondary computer to mount the new spool directory separately from /aiw mount.
- Make sure that you can access on the secondary server the contents of the newspooldirectory mounted on separate filesystem. Secondary servers fail if cannot access the file systems.
- To export the
- Restart RICOH ProcessDirector:
- Restart the base product by logging in to the AIX system as the RICOH ProcessDirector system user and entering startaiw.
- Restart each secondary server by logging in to each secondary computer as the RICOH ProcessDirector system user and entering startaiw.