Ramdisk and RRD backup-data restoration

: 11 November 2016

Ramdisk and RRD backup-data restoration

Starting RAM disk

If ramdisk is disconnected due to server outage or unexpected situation, you can start it by running the following script from ISPadmin console:

/usr/local/script/ispadmin/rrd_ramdisk.pl start force

This way you will start ramdisk and restore data from the last backup. Use [force] option to restore the data even if it is smaller than the last known data.

Restoring RRD data from backup

ISPadmin creates backups of graphs stored in ramdisk automatically once a day. 10 backups are created back.

If the data is corrupted and ISPadmin detects it (change in data size by more than 5% compared to the previous size, or disconnected disk), you can restore data to ramdisk, if initiated, or to the original directory with rrd data:

/usr/local/script/ispadmin/rrd_ramdisk.pl restore -- restores data from last backup

If the recovery of the ramdisk data does not fix your problem, try having a look at the list of backups and choosing the largest one. Such a backup is the most likely to contain all graphs.

If you add the name of the backup to be restored behind restore (skip the leading directory, e.g. rrd_backup_2016_05_26_13_40_03.tgz), the system will restore this backup.

If you need to restore data from system backups, section script, follow instructions in restore data from scripts backups to directory, copy this backup into a directory with backups for rrd ( /usr/local/script/ispadmin/rrd_data_backup/), and then follow instructions in this paragraph.

Increasing RAM disk manually

RAM disk is maintained until 80% of its capacity. If this capacity is reached, the system will try to increase RAM disk size by 20%.
You can define RAM disk size by running the following command:

/usr/local/script/ispadmin/rrd_ramdisk.pl set size_in_MB - Set size RamDisk to

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Search

Searching required information is possible either via structured menu which is divided into sections, or via full-text search of the entire contents of this on-line documentation.

Breadcrumbs

This aid will make it possible for you to find out where exactly you are at the moment.

If, for example, the following appears beneath the main menu - ISPadmin Wiki / ENG / Client management / Menu - CLIENTS / Clients / Message Board / Groups - it means that you are:

in the Wiki documentation of the ISPadmin system
in its English localization
in the Client management section
in the Clients tab
in the Message board subtab
in the Groups sub-subtab

Changelog

It contains newly added functionalities and modifications of the system which are displayed by versions and issue date. Changelog articles are also displayed in individual sections / pages of the documentation which relate to new functionality or modification.

Basic orientation

You will find a welcoming menu with basic instruction on trying / implementing / using below.

FAQ

Frequently asked questions along with most important procedures and settings are listed in FAQ section.

Colours

Items which refer to real system menu are highlighted in corresponding colour, including their graphical background. Eg. Invoicing Settings Templates Reminders. This is also a working reference to an article.