Cloud Attached Storage

Transcription

1 CTERA Appliance Disaster Recovery Guide Cloud Attached Storage June 2013 Version 3.2

2 1 Introduction This document is intended for CTERA Portal administrators. It describes how to replace CTERA appliances and/or their disks, when a customer reports the following situations: The appliance's hard disks are not working. See Recovering from Hard Drive Failures (page 3). The appliance is not functioning properly. See Recovering from Appliance Failures (page 7). The appliance is a total loss. See Recovering from Total Loss (page 11). Cloud Attached Storage CTERA Appliance Disaster Recovery Guide 2

3 2 Recovering from Hard Drive Failures This chapter explains how to recover from a hard drive failure, while the appliance is functioning properly. Overview The procedure involves verifying the array's status. Then, if the array is degraded, it is necessary to replace the failed hard drives. If the array has failed, it is necessary to replace the failed hard drives, add the new hard drives to the array, recreate the lost volumes, and restore their contents from cloud backup. To recover from a hard drive failure 1 Log in to the appliance's Web interface. For instructions, refer to the appliance's user guide. 2 In the Main > Dashboard page, view information on the RAID array and the physical disk's status. 3 If the RAID array's status is "Degraded", and the status of a few disks is "Failed", replace those disks. The array will rebuild itself. Cloud Attached Storage CTERA Appliance Disaster Recovery Guide 3

4 2 Recovering from Hard Drive Failures 4 If RAID array's status is "Failed", the data on it was lost. To recover the data, do the following: a Remove the disks marked as "Failed" from the appliance. b Insert new disks. Tip If the disks are not new, you can delete all data by formatting them. To do so, click on the disk once it appears in the Main > Dashboard page, and then click Format. c Edit the failed RAID array, by doing the following: 1 In the Storage > Arrays page, click on the name of the failed array. 4 Cloud Attached Storage CTERA Appliance Disaster Recovery Guide

5 Recovering from Hard Drive Failures 2 2 Add the new drives to the failed array. 3 Complete the Array Editor Wizard. d In the Share > Shares page, for each share with the status "Offline", write down the volume name (listed in the Volume column). e Create volumes with the same names as those you wrote down in the previous step, by doing the following for each such volume: 1 In the Storage > Volumes page, click New. Cloud Attached Storage CTERA Appliance Disaster Recovery Guide 5

6 2 Recovering from Hard Drive Failures 2 In the Logical Volume Wizard, select the new array you created in the Storage Device field. 3 Complete the Logical Volume Wizard. f Restore data from cloud backup, by doing the following: 1 In the Cloud Backup > Control Panel page, click Restore Files. 2 In the tree pane, select all of the shares that were lost. 3 Complete the Restore Files Wizard. 6 Cloud Attached Storage CTERA Appliance Disaster Recovery Guide

7 3 Recovering from Appliance Failures This chapter explains how to replace an appliance, when there has been a hardware failure but the hard drives are undamaged, by replacing the appliance with a new one of the same model while keeping the old hard drives. Overview The procedure involves installing the new appliance, moving the old hard drives into the new appliance, connecting the new appliance to cloud services, recovering the device configuration from cloud backup, and moving the cloud backup folder from the old appliance to the new one. Tip In C800, the power supplies are user swappable. Before performing this procedure, try swapping the power supplies. To recover from an appliance failure 1 Remove the old appliance's disks. 2 Plug in the new appliance. 3 Insert the disks that were removed from the faulty appliance into the new appliance. The new appliance will automatically recognize the volumes on the disks. 4 In the CTERA Portal, do the following: a Log in as an administrator. b In the Folders > Backup Folders page, in the Search field, type the old appliance's device name and then press Enter. c Click on the link in the Device column. The Device Manager opens. Cloud Attached Storage CTERA Appliance Disaster Recovery Guide 7

8 3 Recovering from Appliance Failures d In the Device Manager's Settings tab, clear the MAC Address field. e Click Save. f Select the backup folder's row, and then click View Files. 8 Cloud Attached Storage CTERA Appliance Disaster Recovery Guide

9 Recovering from Appliance Failures 3 The File Manager opens. g Navigate to the appliance's configuration file, db.xml, which is located in the path /Device Configuration. h Double-click on the db.xml file to download it. 5 In the new appliance's Web interface, import the downloaded appliance configuration file, by doing the following: Cloud Attached Storage CTERA Appliance Disaster Recovery Guide 9

10 3 Recovering from Appliance Failures a In the System > Configuration Tools page, click Import. b Select the downloaded db.xml file and complete the Configuration Import Wizard. The new appliance automatically connects to CTERA Portal with the identity of the failed old appliance. If the old appliance was connected to Active Directory, the new appliance automatically joins Active Directory in place of the failed old appliance. 10 Cloud Attached Storage CTERA Appliance Disaster Recovery Guide

11 4 Recovering from Total Loss This chapter explains how to replace an appliance, which together with its hard drives is a total loss, due to a disaster such as theft, fire, or flood. Overview The procedure involves installing the new appliances, recreating the lost RAID arrays and volumes, moving the cloud backup folder from the old appliance to the new one, and recovering the device configuration and data from cloud backup. To recover from total loss 1 In the CTERA Portal, download the old appliance's configuration file, by doing the following: a In the Folders > Backup Folders page, click on the folder associated with the old appliance. Cloud Attached Storage CTERA Appliance Disaster Recovery Guide 11

12 4 Recovering from Total Loss b In the Folder Manager, click View Files to open the File Manager. c Navigate to the appliance's configuration file, db.xml, which is located in the path /Device Configuration. d Select the configuration file, click Actions, and then click Download. 2 Install the new appliance, skipping the setup wizard. 12 Cloud Attached Storage CTERA Appliance Disaster Recovery Guide

13 Recovering from Total Loss 4 3 In the new appliance's Web interface, import the downloaded appliance configuration file, by doing the following: a In the System > Configuration Tools page, click Import. b Select the downloaded db.xml file and complete the Configuration Import Wizard. Cloud Attached Storage CTERA Appliance Disaster Recovery Guide 13

14 4 Recovering from Total Loss 4 In the new appliance's Web interface, create a new RAID array, by doing the following: a In the Storage > Arrays page, click New. b Complete the Array Editor Wizard. 5 In the new appliance's Share > Shares page, for each share with the status "Offline", write down the volume name (listed in the Volume column). 14 Cloud Attached Storage CTERA Appliance Disaster Recovery Guide

15 Recovering from Total Loss 4 6 Create volumes with the same names as those you wrote down in the previous step, by doing the following for each such volume: a In the Storage > Volumes page, click New. b In the Logical Volume Wizard, select the new array you created in the Storage Device field. c Complete the Logical Volume Wizard. Cloud Attached Storage CTERA Appliance Disaster Recovery Guide 15

16 4 Recovering from Total Loss 7 In the new appliance's Web interface, connect to the CTERA Portal, by doing the following: a In the Cloud Services > Status page, click Connect to Services. b Complete the Connect to Services Wizard. 16 Cloud Attached Storage CTERA Appliance Disaster Recovery Guide

17 Recovering from Total Loss 4 8 In the CTERA Portal, assign the old device's backup folder to the new appliance, and then delete the old appliance, by doing the following: a In the Main > Devices page, click on the new device's name. Cloud Attached Storage CTERA Appliance Disaster Recovery Guide 17

18 4 Recovering from Total Loss b In the Device Manager's Settings tab, select the old device's backup folder in the Backup Folder drop-down list. c When done, save your changes. In the Main > Devices page, the new device is listed as using the old device's backup folder. d (Optional) If you want to delete the old device, do the following: 1 Select the old device's row, then click Delete Device. 2 Click Delete device only. 18 Cloud Attached Storage CTERA Appliance Disaster Recovery Guide

19 Recovering from Total Loss 4 9 If the backup folder is passphrase-protected, the Cloud Backup > Control Panel page will indicate that you need to run the backup wizard again. In this case, do the following: a Click Run the Backup Setup Wizard. b In the Backup Wizard, enter the passphrase. c Complete the Backup Wizard. Cloud Attached Storage CTERA Appliance Disaster Recovery Guide 19

20 4 Recovering from Total Loss 10 In the new appliance's Web interface, restore data from cloud backup, by doing the following: a In the Cloud Backup > Control Panel page, click Restore Files. b In the tree pane, select all of the shares that were lost. c Complete the Restore Files Wizard. 20 Cloud Attached Storage CTERA Appliance Disaster Recovery Guide