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In each vault store where you use partition rollover, the open partition must be rollover enabled, and there must be at least one ready partition. For partition rollover to work for an extended period without intervention, each ready partition in a vault store must also be partition rollover enabled. If not, partition rollover stops at the first partition that is not rollover enabled. In summary, for Enterprise Vault to roll over through a series of partitions, each must be both ready for partition rollover, and partition rollover enabled.
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Centera partitions cannot be rollover enabled, which means Enterprise Vault cannot roll over from a Centera partition. However, Centera partitions can be rollover ready. |
You can enable and configure partition rollover for each partition when you create it using the wizard. For more information on creating a new vault store partition, see the Setting up storage chapter of the Installing and Configuring manual. You can also configure partition rollover for existing vault store partitions, using the page.
Each partition can be configured to roll over using any of the following options:
. Partition rollover is enabled for this partition, and occurs according to the amount of free space on the volume that hosts the partition.
. Partition rollover is enabled for this partition, and occurs according to the time criteria you specify.
. Partition rollover is enabled and occurs according to whichever of the volume criteria or time criteria are met first. For example, you can configure the partition to roll over when its host volume falls below 5% free space, or on a specific date, whichever comes first.
Depending on the choice you make, you can then set appropriate rollover criteria. If you choose either or , you can make appropriate settings to trigger partition rollover according to the remaining free space on partition's host volume. Set one of the following criteria to trigger rollover:
If you chose either or , you can make appropriate settings to trigger partition rollover. Set one of the following criteria to trigger rollover:
This flexibility enables a number of approaches to the management of partition rollover. You can take a purely volume-based approach , in which you configure a series of partitions that roll over when their host disks approach capacity. Normally, this approach would require you to create the partitions on separate physical disks. However, it is still possible to host partitions on a single disk when you mount multiple physical volumes in one file system. In this case, Enterprise Vault rolls over based on the free space on the physical volume, rather than on the host file system.
The time-based approach to partition rollover lets you roll over according to any time criteria that suit your environment. For example, you can configure partitions to roll over at the end of each week, or on a specific date each month.
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When you use date-based partition rollover, you must ensure that each partition has sufficient storage capacity for period it is open. |
Enterprise Vault also lets you use a mixture of volume and time criteria.
To enable and configure partition rollover on an existing partition
In the left pane of the administration console, expand the Vault Store Groups container and select the vault store in which you want to configure partition rollover.
In the right pane, right-click a partition and click Properties.
From the Partition Rollover list, select one of the following options:
Use the options that are available to you to set appropriate rollover criteria for this partition.