afacli is a somewhat cryptic utility that Dell used to provide for managing their hardware RAID controllers.
It's the only way to interact with the hardware RAID on Spoon without a reboot. It's a bit fiddly.
We do not need to use
afacli any more,
arcconf works on spoon.
Presumably because afacli wasn't compiled for x86_64, it's not possible to run it out-of-the-box (we have a 64-bit OS install on spoon). So, when it was set up, the admins of that time set up a 32-bit installation of Debian 3.0 ('sarge') in a chroot. This is located on a logical volume on the software RAID, called /dev/mapper/raid1-sarge--i386, and mounted on /var/chroot/sarge-i386 on boot. To use afacli, you have to chroot into this directory, and run it from there. The chroot shouldn't be used for anything other than running afacli.
To enter the chroot (need root):
[spoon] ~ > # chroot /var/chroot/sarge-i386
afacli doesn't like new-fangled TERMs like screen-256color, so you'll need to set to something more primitive, e.g.:
spoon:/# export TERM=linux
/usr/sbin/afacli should fire up a shell.
/usr/local/sbin/afacli in the chroot will automate these steps
for you, so assuming
/usr/local/spoon/sbin is in your
PATH, just typing
afacli from a regular root shell should
Using the command shell
The command prompt initially looks like this:
Before you can do anything interesting, you need to open a connection to the RAID controller:
The prompt will change to reflect the name of the device you just opened:
To get an overview of the disks on the system, do
AFA0> disk list Executing: disk list B:ID:L Device Type Blocks Bytes/Block Usage Shared Rate ------ -------------- --------- ----------- ---------------- ------ ---- 0:00:0 Disk 488281250 512 Initialized NO 132 0:01:0 Disk 488281250 512 Initialized NO 132 0:02:0 Disk 488281250 512 Initialized NO 132 0:03:0 Disk 488281250 512 Initialized NO 132
disk show smart will show whatever S.M.A.R.T. information is available:
AFA0> disk show smart Executing: disk show smart
Smart Method of Enable Capable Informational Exception Performance Error B:ID:L Device Exceptions(MRIE) Control Enabled Count ------ ------- ---------------- --------- ----------- ------ 0:00:0 Y 0 Y N 0 0:01:0 Y 0 Y N 0 0:02:0 Y 0 Y N 0 0:03:0 Y 0 Y N 0
afacli works by interacting with
/dev/afa0. If this device file doesn't exist, you'll have to create it manually
1. Make sure the procfs is mounted inside the chroot:
mount -t proc proc /proc
this ensures that MAKEDEV can access /proc/scsi for SCSI device information.
2. Make the device: