Problem

-- usually, installing B2Bi takes less than 1 hour
-- why my installation takes so much time (2, 3 hours...) ?

Resolution

* first compare the progress of the installation between a "normal" installation and a "long" installation in both installer.log files :

-> if the installer takes a abnormal time on a specific task , investigate the possible root cause (database access, particular command hanging ...)

-> if the progress is "linear" compared to the normal installation, it is most likely a disk issue : installing B2Bi is mostly a matter of copying files to the machine.

1- run this command to estimate the copy speed (it is going to create a 1.7Go file, so make sure first that there is enough space available on the disk)

> dd if=/dev/zero of=foobar count=4096 bs=409600
4096+0 records in
4096+0 records out
1677721600 bytes (1.7 GB) copied, 2.81981 s, 595 MB/s

If the copy takes more than 30 seconds, the disk is too slow and the installation will be abnormally long. Check with adiminstrator how the disk speed could be increased