System FSM Buffer Cache and Memory Allocation Settings

The memory allocation settings presented in the table below are general recommendations. Other settings may be reasonable, depending on specific conditions and workloads.

Table 1: Memory Allocation Settings

Appliance Model

 Total System Memory

FSM BufferCacheSize

 FSM nodeCacheSize*

MySQL
innodb_buffer_pool_size

 Reserved for General Use

 

Xcellis Workflow Director, Xcellis Foundation, aiWARE for Xcellis Embedded, and Artico (R630) systems

64 GB

1 GB per file system

(e.g., 32 x 1 GB = 32 GB)

 256 K inodes per file system (e.g. 4 x ~ 0.5 GB = 2 GB)

16 GB

(default is 10 GB)

16 GB

128 GB

1 GB per file system

(e.g., 64 x 1 GB = 64 GB)

 256 K inodes per file system (e.g. 4 x ~ 0.5 GB = 2 GB)

32 GB

(default is 10 GB)

32 GB

Artico (R520),Pro Foundation, and M440

 48 GB 2 GB per file system (e.g. 4 x 2 GB = 8 GB) 256 K inodes per file system (e.g. 4 x ~ 0.5 GB = 2 GB) 10 GB
(default is 10 GB)		 28 GB

M660

144 GB 2 GB per file system (e.g. 4 x 2 GB = 8 GB) 256 K inodes per file system (e.g. 4 x ~ 0.5 GB = 2 GB) 40 GB
(default is 40 GB)		 32 GB

M330

24 GB 2 GB per file system (e.g. 4 x 2 GB = 8 GB) 256 K inodes per file system (e.g. 4 x ~ 0.5 GB = 2 GB) 5 GB
(default is 2 GB)		 18 GB
*For systems not running the maximum number of file systems, it is recommended that memory be provisioned to increase the FSM BufferCacheSize setting to a value up to 8 GB and the FSM InodeCacheSize setting to a value up to 512 K. Increasing these values may improve file operation performance on systems with many concurrently active files.

For information about changing memory allocation settings, go to the Reference Guides section of the StorNext 6 > Documentation Downloads or StorNext 5 > PDF Downloads pages. Open the StorNext File System Tuning Guide, and review the following sections :