The options file contains documentation for the various settings: two of which, MOUNTS and
KILL_PROCS_ON_UMOUNT, are discussed in more detail in the "Handling IO Accelerator driver unloads (on page 20)."
Mounting filesystems
The IO Accelerator driver is not loaded in the initrd, and, (built kernel) therefore, using the standard method for mounting filesystems (/etc/fstab), does not work.
To set up
1.Add the mnt command to /etc/fstab.
2.Add the noauto option to /etc/fstab.
For example:
o /dev/fcta /mnt/fioa ext3 defaults,noauto 0 0
o /dev/fctb1 /mnt/iodrive ext3 defaults,noauto 0 0
To have the init script mount these drives after the driver is loaded and unmount them before the driver is unloaded, add a list of mount points to the options file. For more information, see "Using module parameters (on page 20)."
For the filesystem mounts shown in the previous example, the line in the options file appears similar to the following:
MOUNTS="/mnt/fioa /mnt/iodrive"
Handling IO Accelerator driver unloads
By default, the init script searches for any processes holding open a mounted filesystem, kills them, and then enables the filesystem to be unmounted. This behavior is controlled by the option KILL_PROCS_ON_UMOUNT in the options file. If these processes are not killed, then the filesystem cannot be unmounted. This might keep the IO Accelerator from unloading cleanly, causing a significant delay on the subsequent boot.
Setting the IO Accelerator driver options
This section explains how to set IO Accelerator options.
Using module parameters
The following table describes the module parameters you can set by editing
IMPORTANT: To take effect, these changes must be completed before the IO Accelerator is loaded.
Module parameter | Default | Description |
| (minimum/maxi |
|
| mum) |
|
|
|
|
auto_attach | True | Attach the device on startup. |
Software installation 20
