Архива requires a minimum of 768MB to function effectively in a production environment, however, at least 1512MB is recommended with a small 500 mailbox installation. The more traffic Архива must cope with and the larger the size of the volumes, the more memory must be allocated. For Архива deployments servicing 20 000 users, it is not uncommon for Архива to be configured for 8 Gigabytes of RAM or more. Please refer to the system requirements for specific recommendations.
Memory Problems: If you are experiencing trouble with Архива running out of memory or feel that Архива is using too much memory, please refer to Memory Issues.
PST Import: Due to the nature of the PST import routines, if there is a requirement to import very large PST files >2GB, your server will likely need more memory.
Checking Total RAM Available
Before, you allocate more RAM, please check the physical amount of RAM that you have available.
1. Windows 7:
a) Click Start
b) From the search box, type 'ram' without the quotes
c) Click "Show how much RAM is available on this computer"
2) Linux
a) Type "top" in a terminal window
Allocating More/Less Memory
Its no use having large amounts of physical RAM available, without telling Архива about it.
Note: If too little RAM is allocated, your server may run out of memory and archiving may stop entirely.
- Linux: From the commandline:
a) Run the configure script as follows:
[program directory]/server/configure
b) Restart the Архива server
- Windows:
a) Right click task tray applet, click Configure...
b) Select Java tab
c) Enter a higher amount for the maximum memory size
d) Restart the Архива Service (this is required for the changes to take effect!)
Note: The following heap restrictions apply to Архива running on a 32 bit platform:
- Linux 32-bit: limited to a maximum of ~1960 MB
- Windows 32 bit: limited to a maximum of ~1512 MB
Refer to: http://java.sun.com/docs/hotspot/HotSpotFAQ.html#gc_heap_32bit for more information.
After allocating more memory, do not be alarmed if the Архива process is using the full extent of memory allocated. This is normal behaviour for Java based applications. For more information on common memory usage patterns in Java based applications, please refer to Out Of Memory.
64 Bit OS Highly Recommended: To make full use of all of the available physical RAM, it may be necessary to install a 64 bit Operating System such as Windows Server 64 bit or Ubuntu Server 64 bit.
Free Space Tip: When allocating more RAM to Архива, at minimum, you should always leave free memory for the Operating System to function effectively.
Архива v2.8.0 And Lower: When the email archive server is upgraded from one version to another, the heap size settings may revert back to the defaults. Please ensure that Архива's heap size settings are correct after each upgrade.
32bit / 64bit JVM: As of v1.9.5, the for Windows and Linux incorporate both a 32bit and a 64bit JVM. It will automatically detect the appropriate JVM based on the architecture of your operating system.