Below are the ways that the Hosted Exchange application controls the disk space available to organizations.
If an Organization's Subscription Does Not Include 'Hosted Exchange Mailbox Type' Resources
When controlling the maximum disk space that an organization with such a subscription can allocate and use, the following is taken into account:
- The value of the Maximum mailbox size allowed setting from the configuration profile whose Hosted Exchange Configuration Profile resource is included in the subscription (MAX_MBX_SIZE).
- The limit on the Hosted Exchange Mailboxes resource, which is set in the subscription (MAX_MBX_NUM).
- The limit on the Hosted Exchange Resource Mailboxes resource, which is set in the subscription (MAX_RES_MBX_NUM).
- The value of the Maximum public folder size allowed setting from the configuration profile whose Hosted Exchange Configuration Profile resource is included in the subscription (MAX_PF_SIZE).
- The limit on the Hosted Exchange Public Folders resource, which is set in the subscription (MAX_PF_NUM).
- The limit on the Hosted Exchange - Disk Space resource (DISKSPACE_PER_SUBSCRIPTION), which is set in the subscription.
To calculate the maximum disk space available to an organization with such a subscription, the least of the following is used:
- MAX_MBX_SIZE * MAX_MBX_NUM + MAX_MBX_SIZE * MAX_RES_MBX_NUM + MAX_PF_SIZE * MAX_PF_NUM
- DISKSPACE_PER_SUBSCRIPTION
For example, if an organization's subscription stipulates that its end users can create up to ten mailboxes up to 10 GB in size, up to three resource mailboxes up to 10 GB in size, and up to five public folders up to 5 GB in size, the maximum disk space that the organization can allocate and use is 10 * 10 GB + 3 * 10 GB + 5 * 5 GB.
If an Organization's Subscription Includes 'Hosted Exchange Mailbox Type' Resources
When controlling the maximum disk space that an organization with such a subscription can allocate and use, the following is taken into account:
- The values of the Maximum mailbox size allowed settings from the mailbox types whose Hosted Exchange Mailbox Type resources are included in the subscription (MAX_MBX_SIZE_1 ... MAX_MBX_SIZE_N).
- The limits on the Hosted Exchange Mailbox Type resources, which are set in the subscription (MAX_MBX_NUM_1 ... MAX_MBX_NUM_N).
- The value of the Maximum mailbox size allowed setting from the configuration profile whose Hosted Exchange Configuration Profile resource is included in the subscription (MAX_MBX_SIZE).
- The limit on the Hosted Exchange Resource Mailboxes resource, which is set in the subscription (MAX_RES_MBX_NUM).
- The value of the Maximum public folder size allowed setting from the configuration profile whose Hosted Exchange Configuration Profile resource is included in the subscription (MAX_PF_SIZE).
- The limit on the Hosted Exchange Public Folders resource, which is set in the subscription (MAX_PF_NUM).
- The limit on the Hosted Exchange - Disk Space resource (DISKSPACE_PER_SUBSCRIPTION), which is set in the subscription.
To calculate the maximum disk space available to an organization with such a subscription, the least of the following is applied:
- MAX_MBX_SIZE_1 * MAX_MBX_NUM_1 + ... + MAX_MBX_SIZE_N * MAX_MBX_NUM_N + MAX_MBX_SIZE * MAX_RES_MBX_NUM + MAX_PF_SIZE * MAX_PF_NUM
- DISKSPACE_PER_SUBSCRIPTION
For example, if an organization's subscription stipulates that its end users can create up to three 3GB mailboxes, five 5GB mailboxes, seven 7GB mailboxes, four resource mailboxes up to 4 GB in size, and up to five public folders up to 5 GB in size, the maximum disk space that the organization can allocate and use is 3 * 3 GB + 5 * 5 GB + 7 * 7 GB + 4 * 4 GB + 5 * 5 GB.
Note: The limit on the Hosted Exchange Mailboxes resource, which is set in the subscription, is also taken into account. It limits the total number of mailboxes that can be created in the organization. In the above examples, for the sake of simplicity, we assume that it is set to Unlimited.