HDD Sizing, disk space and partitioning

MageStack will partition disks with the following proportions.

These partitions are of static proportion, regardless of disk size

/ 30G Root filesystem (for host OS and node OS) swap 3G Swap partition logs 1G Local log file storage config 0.5G MageStack configuration storage total 35.5G Total reserved capacity

These partition sizes will vary dependant on the HDD capacity available

capacity (c) disk_size - 25.5 Usable capacity domains (d) 9c / 22 Document root storage mysql (m) 3c / 22 MySQL & SOLR storage backups (b) 5c / 11 Local backup storage

The remaining space is utilised for meta-data storage and LVM snapshot storage.

2 Drive configuration examples

In a 2 drive configuration, 2 drives are used for the entire solution storage in a RAID 1 array.

The default static partitions plus

domains 30G
mysql 10G
backups 33G

The default static partitions plus

domains 71G
mysql 23G
backups 79G

The default static partitions plus

domains 153G
mysql 51G
backups 170G

4 Drive configuration examples

In a 4 drive configuration, 2 drives are dedicated to backup storage and 2 drives are used for solution storage; comprised of two separate RAID 1 arrays.

The default static partitions plus

domains 316G
mysql 105G
backups 351G

The default static partitions plus

domains 643G
mysql 214G
backups 715G

The default static partitions plus

domains 1298G
mysql 432G
backups 1442G

6 Drive configuration examples

In a 8 drive configuration, 4 drives are dedicated to backup storage and 4 drives are used for solution storage; comprised of two separate RAID 1 arrays.

The default static partitions plus

domains 2607G
mysql 869G
backups 2897G

12 Drive configuration examples

In a 12 drive configuration, 6 drives are dedicated to backup storage and 6 drives are used for solution storage; comprised of two separate RAID 1 arrays.

The default static partitions plus

domains 3916G
mysql 1305G
backups 4351G

16 Drive configuration examples

In a 16 drive configuration, 8 drives are dedicated to backup storage and 8 drives are used for solution storage; comprised of two separate RAID 1 arrays.

The default static partitions plus

domains 5225G
mysql 1741G
backups 5806G

Download the MageStack disk calculator in Excel format