DP-VOL protection function

The DP-VOL protection function enables you to protect the DP-VOLs using a pool from read and write requests when problems occur in the pool or pool volumes. For example, in a pool comprised of pool volumes assigned by parity groups with accelerated compression enabled, the access attribute of the DP-VOL changes to Protect when the capacity reserved for writing is depleted.

You can use the Create Pools window or the Edit Pools window to set the following DP-VOL protection options:

The requirements for using the DP-VOL protection function are:

When the access attribute of V-VOL was changed to Protect, if you change the access attribute other than Protect, see Configuring access attributes. The setting by the DP-VOL protection function has no connection to the access attribute status of DP-VOL. For example, even if you disabled the DP-VOL protection function to the pool while the Protect attribute was being enabled on DP-VOL, the Protect attribute would still be enabled on DP-VOL.

If you remove the Data Retention Utility feature, the V-VOL protection function settings remain set in the pool but are no longer active. In this case, if you reinstall Data Retention Utility, the protection function settings made before Data Retention Utility was removed are reactivated in the pool.

olh-caution.gif  If you use the DP-VOL protection function, you cannot simultaneously use the following host mode options. You cannot use the DP-VOL protection function for V-VOLs associated with the host group for which one or both of the following host mode options are enabled: