Dell™ PowerVault™ Data Protection Solution Storage Expansion Guide w w w. d e l l . c o m | s u p p o r t . d e l l .
Notes, Notices, and Cautions NOTE: A NOTE indicates important information that helps you make better use of your computer. NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death. ____________________ Information in this document is subject to change without notice. © 2007 Dell Inc. All rights reserved.
Contents 1 Introduction . 2 Expanding Disk Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Planning Additional Disk Storage . 7 . . . . 7 . . . . . . . . . . . . 9 Disk Size Selection and Considerations Benefits of Hot Spares 3 11 . . . . . . . . . . . . . . 13 . . . . . . . . . . . . . . . . 13 Installing a RAID Adapter for External Storage . Installing an External Storage Enclosure . . . . . 13 . . . . . . .
5 Using Tape Drives and Libraries with DPM . . . . . . . . . . . . . . . . . . Supported Tape Drives and Libraries . . . . . . . 23 . . . . . . . . . . 23 Installing Tape Drives and Tape Libraries . . . . . . . . Using DPM with Tape Drives and Libraries . 6 Other Documents and Resources 4 . . . . . 23 25 . . . . . . . . . . . . . . . . . . 25 Dell Hardware Information . . . . . . . . . . . . . . . 25 Dell Software Information . . . . . . . . . . . . . . . . 25 . . . . . . . . . . . .
Introduction Additional storage is needed when the backup requirements of your IT environment grow beyond the storage capacity of your Dell™ PowerVault™ Data Protection Solution. The storage is needed by Microsoft® System Center Data Protection Manager (DPM) 2007 to accommodate the backup data of your protected systems.
Data Protection Solution with six configured internal disks. The DP500 is protecting the organization’s Exchange Server.
Expanding Disk Storage This section discusses how to: • Plan for storage expansion • Install the additional storage hardware on your system • Make the additional storage space available to DPM Planning Additional Disk Storage As your IT needs outgrow the internal storage standard with your PowerVault Data Protection Solution, additional disk drives are required.
The total storage space in use for these two servers is 350GB. The system administrator must factor in an estimated storage space growth of 10 percent over the next four years resulting in approximately 500GB of data that must be protected. The "Allocating Space for Protection Groups" section in Planning a System Center Data Protection Manager 2007 Deployment describes the methodology DPM uses to allocate space requirements for protection groups.
RAID Adapter Considerations PowerVault Data Protection Solutions include an internal Dell PERC-series RAID adapter that manages internal disk drives. Additional internal disk drives are managed by the internal controller. Some PowerVault Data Protection Solutions support external RAID adapters, such as the PERC 6/E, which can be used to manage disks in an external enclosure.
NOTE: A maximum of eight physical disks within each RAID 5 disk group is recommended. NOTE: All disk drives added to a disk group should be the same size. When combining drives of dissimilar size for RAID 5, the size of the smallest drive will be used by each disk within that disk group. As a result, using a larger drive wastes its disk space. NOTE: It is not required to have the same size of disks in each of your RAID disk groups.
Installing Dell OpenManage™ Server Administrator Dell OpenManage™ Server Administrator (OMSA) must be installed on the DPM server to provide the following benefits: • Monitors the state of the system and storage subsystems • Provide alerts of failing components to avoid unplanned downtime • Creates and manages RAID 5 virtual disks NOTE: OMSA should be installed from the Dell Systems Console and Agent CD included with your system.
Expanding Disk Storage
Adding Physical Disks This section describes the steps involved in adding physical storage to your PowerVault Data Protection Solution. It covers installing both the internal drives and the external storage enclosures, such as the MD1000. NOTE: Before making any hardware changes to your system, you should back up your operating system drive. For PowerVault Data Protection Solution supported drives and external storage enclosures, refer to Dell PowerVault Data Protection Solution Support Matrix.
Installing Drives in the Storage Enclosure If you need to add drives to an existing storage enclosure, refer to the "Removing and Installing Drives" section of the storage enclosure’s Hardware Owner's Manual. Example: Installing a Storage Enclosure The system administrator adds an MD1000 storage enclosure containing five 250GB drives and a PERC 6/E adapter to the DP500 using the following steps: 1 Install OMSA (if not already installed) on the system. 2 Perform a full backup of the operating system.
Configuring Virtual Disks for DPM For DPM to use additional hard disks, the disk drives must be configured into one or more RAID 5 virtual disks. Creation of the RAID virtual disks is accomplished using OpenManage Server Administrator (OMSA). Use these guidelines when configuring virtual disks: • Configure all DPM virtual disks as RAID Level 5. • RAID 5 virtual disks require a minimum of three physical disks.
Figure 4-1. OMSA Virtual Disk Wizard 1 1 2 Storage management 2 Go to Create Virtual Disk Wizard option 1 Go to the storage management section of the OMSA virtual disk wizard. 2 Click Go to Create Virtual Disk Wizard.
Figure 4-2. Virtual Disk Attributes 1 2 3 1 RAID type 3 Virtual disk size 2 Virtual disk name 3 Select the RAID-5 option. 4 Enter the name of the virtual disk. 5 Enter the size of the virtual disk (1000 = 1TB). 6 Click Continue.
Figure 4-3. Virtual Disk Summary 7 When the summary page appears, click Finish.
Figure 4-4. Virtual Disk Created In Figure 4-4 above, the new virtual disk you added (Virtual Disk 2) is shown as ready. Adding Available/Free Disks to DPM Storage Pool To use additional virtual disks created in the previous steps, they must be added to DPM’s storage pool. Virtual disks are added to DPM’s storage pool using the DPM Administrator console.
Example: Adding Virtual Disks to DPM’s Storage Pool The steps below shows how a systems administrator would add virtual disks to DPM’s storage pool. Figure 4-5. DPM Disk Management Screen 1 3 2 1 Management option 3 Add virtual disk option 1 Select the Management option. 2 Select the Disks tab. 3 Under Selected item, click Add.
Figure 4-6. DPM Storage Pool Disk Selection 4 In the Add Disks to Storage Pool window, select the disks you want to add. 5 Click Add. Figure 4-7. Completing DPM Storage Pool Disk Selection 6 Click OK.
Figure 4-8. New Disk in DPM Storage Pool The new disk now appears as part of the storage pool.
Using Tape Drives and Libraries with DPM The PowerVault Data Protection Solution supports disk-to-tape backup of the protected systems and disk-to-disk-to-tape archival for long-term protection. Refer to the "Backup Solutions Combining Disk and Tape" section of Planning a System Center Data Protection Manager 2007 Deployment. To use these features, you need to attach a tape drive or a tape library to your solution.
Using Tape Drives and Libraries with DPM
Other Documents and Resources Refer to the PowerVault Data Protection Solution Quick Reference Guide available at support.dell.com to locate the following documents and resources.
Other Documents and Resources
Index A O adding available/free disks, 19 OMSA, 15 D disk storage, 7 DPM, 15 OpenManage Server Administrator, 11 P physical disks, 13 E External Storage Enclosure, installing, 13 H hot spares, 10 R RAID adapter, 9 RAID adapter, Installing for external storage, 13 T tape drives and libraries, 23 Index 27
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