Hi -

I used the following command in order to build the config files:
~# glusterfs-volgen --name store1 --raid 1 gl1:/export/nunki gl2:/export/nunki

Part of the generated glusterfs.vol (iocache translotor):
volume iocache
  type performance/io-cache
  option cache-size `grep 'MemTotal' /proc/meminfo  | awk '{print $2 * 0.2 / 1024}' | cut -f1 -d.`MB
  option cache-timeout 1
  subvolumes readahead
end-volume

On some localized systems where the decimal separator is a comma, the cache-size is not configurated. Here is the log:

[2010-03-26 09:46:04] E [xlator.c:309:_volume_option_value_validate] iocache: invalid size format "1600,32MB" in "option cache-size"
[2010-03-26 09:46:04] E [glusterfsd.c:568:_xlator_graph_init] iocache: validating translator failed
[2010-03-26 09:46:04] E [glusterfsd.c:1382:main] glusterfs: translator initialization failed.  exiting

Suggestion: replace by something like this:

option cache-size `grep 'MemTotal' /proc/meminfo  | awk '{printf "%dMB\n", $2 * 0.2 / 1024}'`

Best regards,
-- 
olecam