Installation

Synology monitoring

In case of usage of Virtual Appliance

Use local account lpar2rrd for hosting of STOR2RRD on the virtual appliance
Use /home/stor2rrd/stor2rrd as the product home

The product obtains all data from Synology SNMP interface.
Note: DSM version 6.1 and older do not support capacity data.

We do not collect data for pools. The reason is:
There are two types of pools:

"Better performance" = Single volume support
"Higher flexibility" = Multiple volumes support

SNMP does not provide data for a single volume pool
We only have the "array_total" pool (sum all volumes).

Install Prerequisites (skip that in case of Virtual Appliance)

AIX
Download Net-SNMP packages and install them.
Do not use the latest packages on AIX, it does not work, use net-snmp-5.6.2.1-1!
```
# umask 0022
# rpm -Uvh net-snmp-5.6.2.1-1 net-snmp-utils-5.6.2.1-1 net-snmp-perl-5.6.2.1-1
```
Make sure
- you use PERL=/opt/freeware/bin/perl in etc/stor2rrd.cfg
- PERL5LIB in etc/stor2rrd.cfg contains /opt/freeware/lib/perl5/vendor_perl/5.8.8/ppc-thread-multi path

Linux

# umask 0022
# yum install net-snmp
# yum install net-snmp-utils
# yum install net-snmp-perl

Note you might need to allow optional repositories on RHEL to yum can find it

# subscription-manager repos --list
...
# subscription-manager repos --enable rhel-7-server-optional-rpms

Use rhel-7-for-power-le-optional-rpms for Linux on Power etc ...

Linux Debian/Ubuntu
```
% umask 0022
% apt-get install snmp libsnmp-perl snmp-mibs-downloader
```
Assure that this line is commented out in /etc/snmp/snmp.conf
```
#mibs :
```
If apt-get does not find snmp-mibs-downloader package then enable contrib and non-free repositories.

Allow network access

Allow access from the STOR2RRD host to the Synology storage (EVS IP) on port 161 UDP .
Test if port is open:

$ perl /home/stor2rrd/stor2rrd/bin/conntest_udp.pl 192.168.1.1 161
  Connection to "192.168.1.1" on port "161" is ok

Storage SNMP configuration

STOR2RRD storage configuration

Assure you have enough of disk space on the filesystem where is STOR2RRD installed
Roughly you might count 2 - 30 GB per a storage (it depends on number of volumes, 30GB for 5000 volumes)
```
$ df -g /home   # AIX
$ df -h /home   # Linux
```

Schedule to run storage agent from stor2rrd crontab (lpar2rrd on Virtual Appliance, it might already exist there)

$ crontab -l | grep load_synologyperf.sh
$

Add if it does not exist as above

$ crontab -e

# Synology
0,5,10,15,20,25,30,35,40,45,50,55 * * * * /home/stor2rrd/stor2rrd/load_synologyperf.sh > /home/stor2rrd/stor2rrd/load_synologyperf.out 2>&1

Assure there is already an entry with the UI creation running once an hour in crontab

$ crontab -e

# STOR2RRD UI (just ONE entry of load.sh must be there)
5 * * * * /home/stor2rrd/stor2rrd/load.sh > /home/stor2rrd/stor2rrd/load.out 2>&1

Let run the storage agent for 15 - 20 minutes to get data, then:
```
$ cd /home/stor2rrd/stor2rrd
$ ./load.sh
```
Go to the web UI: http://<your web server>/stor2rrd/
Use Ctrl-F5 to refresh the web browser cache.