Deployment Guide

Default partitioning suggested by the OS installer is suitable for most cases. As laptops are rarely
equipped with multiple hard drives, RAID configurations are not possible.
Server installations
At least one RAID array is recommended: 7signal databases and database log files should reside on a file
system on top of RAIDed disks (RAID level 1 or higher, LVM on top of RAID). Multiple RAIDed file systems
are also suitable, for example, OS installation could be on file system on RAID1, and databases on file
system on top of RAID5.
It is suggested that LVM is used on top of RAIDs: this makes it possible to easily add a new RAID array as
a LVM physical volume, if the existing one runs out of disk space. On large server installations (having
tens of monitoring stations producing a large amount of measurement data), it is also suggested that
database log files should be placed on different physical disk than the actual databases. This will improve
database performance by reducing serialized disk access.
Example #1
● Two physical disks
● Boot and swap partitions
● RAID1 on top of disks, formatted as LVM physical volume
● Physical volume split into three logical volumes
o 10% of space for OS installation, mount point “/” (LV1)
o 70% of space for databases and database log files, mount point /opt/7signal/databases
(LV2)
o 20% of space for database backups, mount point /opt/7signal/backups (LV3)
● Sapphire installation
o Sapphire components are installed to /opt/7signal (on LV1)
7signal Solutions Inc., 6155 Rockside Road, Suite 110, Independence, Ohio 44131, USA,
216-777-2900, [e-mail], www.7signal.com