ARCSERVE UNIFIED DATA PROTECTION SUPPORT FOR EMC CLOUDARRAY EMC CloudArray is a cloud storage gateway, which utilizes cloud storage from one or many, public or private, cloud providers to extend existing on-premise storage infrastructures to the cloud. CloudArray provides an iscsi interface which allows configuring Amazon S3 buckets into volumes, which could then be used for configuring UDP destinations and\or placing UDP recovery points. Supported Use Cases: 1. RPS Datastore: Can configure an EMC CloudArray volume as an RPS datastore (Deduplication and Non-Deduplication) that can be used for all the supported functionalities of an RPS server. 2. Arcserve UDP Agent for Windows: Configure as backup destination by using the UNC path of the client machine where EMC CloudArray is configured. You can also perform a BMR from a Twinstarta volume. 3. UDP Host-Based Agentless backup: Configure a EMC CloudArray volume as an RPS datastore (Deduplication or Non-Deduplication) and perform backup and recovery of virtual machines. 4. UDP Virtual-Standby: Configure a EMC CloudArray volume as an RPS data store and perform backup and recovery. 5. Copying Recovery Points to Cloud: Configure a EMC CloudArray volume as a CRP destination which helps to store recovery points in cloud Limitations of using EMC CloudArray volume: A backup job may fail when using a EMC CloudArray volume as the backup source. EMC CloudArray volume is supported as destination only. Restore to a CIFS share is not supported. Configuring EMC CloudArray volume as UDP destination: Login to the EMC CloudArray web UI and perform the following procedure: 1. Configure Cloud Providers from the following screen and provide your cloud provider details (please refer UDP Compatibility Matrix to check supported Cloud providers)
2. By default Cache of 25GB is configured by EMC CloudArray for data movement. You can increase/decrease the cache based on your data transfer requirement. If you would like to configure new cache, follow below steps. 3. Configure policy from the following screens:
4. Configure any new EMC CloudArray Clients who would access the EMC CloudArray volumes
5. Configure EMC CloudArray volumes which can be accessible by Clients and then map the volume to a client who was previously configured. One volume can be mapped to one client.
6. Now to view the EMC CloudArray volume from a Client machine, you need to: a. Connect the EMC CloudArray volume from the iscsi initiator of the client machine. b. Open iscsi initiator from Control Panel -> Administrative Tools. c. Input the IP address/hostname of EMC CloudArray server d. Perform a Quick Connect.
7. After the connection is successful, go to disk management and perform Rescan Disks to get the disk online, format, and use it for a destination. 8. If disk is not displayed after Rescan Disks perform the following: a. Access the EMC CloudArray web console -> Clients. From here you can view an entry with the IQN number of Client Machine
b. Navigate to the EMC CloudArray Volumes and unmap the Client name from the previously configured Volume configured. Then map with the IQN number displayed under Clients. c. Return to the EMC CloudArray Volumes.
9. Repeat Step 8 and then you should be able to start using the EMC CloudArray volume.
Known Issues: 1. The backup job may fail with the following error: Failed to create snapshot for selected volumes If this occurs, perform the following work-around: a. Access the event viewer and obtain the volume information which has the problem. b. To find the exact volume information corresponding to the mount point, open the command line and enter the mountvol command. c. The output will display all the volume names, along with mount points as follows: Possible values for Volume Name along with current mount points are: \\?\Volume{8cf01a71-3222-11e4-8c85-806e6f6e6963}\ *** NO MOUNT POINTS *** \\?\Volume{61c7591e-329a-11e4-b4dc-005056bf1425}\ G:\ \\?\Volume{61c7592e-329a-11e4-b4dc-005056bf1425}\ E:\ \\?\Volume{61c75926-329a-11e4-b4dc-005056bf1425}\ L:\ d. From here, you can view the mount point and the corresponding volume name. e. Go to properties of the volume as follows: Select the <drive> right click properties shadow copies setting Storage area Maximum size No limit
2. If the cache size of EMC CloudArray volume is very small (for example 2GB-10GB), the backup job may fail with the following error: Operations (create, close, read, write) on file (D2D destination.d2d) failed, Error code: 1117, [The request could not be performed because of an I/O device error]. Workaround: Please use a cache size greater than 10GB to resolve this issue. Note: Screenshots/images referred in this document are based upon the following version: EMCEE CloudArray Verizon validated: 2012-4.9.2.5868