1. Buffalo Data Storage Expansion June 2015 1

2. As organizations grow the amount of data storage capacity required to support it grows as well Increased data retention requirements Increased headcount New applications Adding on to an existing storage network should have minimal impact on the end user Mission critical data should have backups or redundancies in place in the event of an unforeseen disaster 2 Overview

3. The TeraStation™ line of network storage devices represents Buffalo's premier NAS and iSCSI unified storage solutions Designed to exacting standards and made for the demanding needs of today's businesses High availability storage technologies RAID Hot-spare In a Windows (Storage) Server 2012 environment, TeraStation™ is a cost-effective network storage expansion solution for businesses that value performance and reliability 3 Overview (cont.)

4. Single logical volume Available redundancies TeraStation™ RAID (1, 5, 6, 10, 51, 61) Protects against physical HDD failures Microsoft Storage Services Virtual Disk Storage Layout (Mirror or Parity) Protects against a chassis failure (ex. fire, flood, etc.) 4 D:/ Windows Server 2012 or Windows Storage Server 2012 Option 1 - Multiple layers of data protection Switch (i.e. Buffalo BS-GUP) Buffalo TeraStation™ (i.e. TeraStation™ 7120r)

5. D:/ E:/ F:/ Option 2 - Most storage capacity Multiple logical volumes Available redundancies TeraStation™ RAID (1, 5, 6, 10, 51, 61) Protects against HDD drive failures 5 Buffalo TeraStation™ (i.e. TeraStation™ 7120r) Switch (i.e. Buffalo BS-GUP) Windows Server 2012 or Windows Storage Server 2012

6. The following procedure explains how to expand data storage capacity on an existing Windows (Storage) Server 2012 environment by configuring multiple Buffalo Terastation™ into a single logical volume (Option 1) 6 Comments in blue are specific for configuring multiple Buffalo Terastation™ into multiple logical volumes (Option 2)

7. 7 Create iSCSI targets Connect iSCSI targets to Windows Server 2012 Add iSCSI targets to storage pool Create a virtual disk from a storage pool Create a logical volume from a logical disk TeraStation™ Windows Server Step 1

8. http://buffalotech.com/support-and-downloads/faqs/creating-an-iscsi-target-on-a-buffalo-terastation 8 Creating a TeraStation™ iSCSI target

9. 9 Create iSCSI targets Connect iSCSI targets to Windows Server 2012 Add iSCSI targets to storage pool Create a virtual disk from a storage pool Create a logical volume from a logical disk TeraStation™ Windows Server Step 2

10. 1. In “Control Panel” open the “iSCSI Initiator” 10 2. Select iSCSI target then click “Connect” Connecting iSCSI targets

11. 3. Check both check boxes, then click “OK” 11 4. iSCSI target status should now be “Connected” Connecting iSCSI targets (cont.)

12. 5. Repeat connection process for all TeraStation™ iSCSI targets 12 Connecting iSCSI targets (cont.)

13. 13 Create iSCSI targets Connect iSCSI targets to Windows Server 2012 Add iSCSI targets to storage pool Create a virtual disk from a storage pool Create a logical volume from a logical disk TeraStation™ Windows Server Step 3

14. 1. Open “Sever Manager” then click “File and Storage Services” 14 2. Click “Storage Pools” Adding iSCSI targets to storage pool

15. 15 3. Click “Storage Pools” Adding iSCSI targets to storage pool

16. 16 Adding iSCSI targets to storage pool (cont.) 4. The iSCSI targets should be visible in the “Physical Disks” area 4a. If iSCSI targets are not seen under “Physical Disks” click the refresh icon

17. 17 Adding iSCSI targets to storage pool (cont.) 5. Right-click iSCSI target and select “New Storage Pool…” - This will open the “Storage Pool Wizard”

18. 7. Click “Next” 18 8. Specify pool name 9. Click “Next” Adding iSCSI targets to storage pool (cont.)

19. 10. Select physical disks for storage pool - For Option 2 (creating multiple logical volumes) select only one disk 19 11. Check properties then click “Create” Adding iSCSI targets to storage pool (cont.)

20. 12. Check results then click “Close” 20 13. New storage pool is visible in the “Storage Pools” window Adding iSCSI targets to storage pool (cont.)

21. 21 Create iSCSI targets Connect iSCSI targets to Windows Server 2012 Add iSCSI targets to storage pool Create a virtual disk from a storage pool Create a logical volume from a logical disk TeraStation™ Windows Server Step 4

22. 1. Select the new storage pool that was created 2. Right-click and select “New Virtual Disk” - This will open the Virtual Disk Wizard 22 Creating virtual disk from storage pool

23. 2. Click “Next” 23 3. Select “Pool Name” then click “Next” Creating virtual disk from storage pool (cont.)

24. 4. Create virtual disk name 24 5. Select storage layout type - Refer to Appendix A Creating virtual disk from storage pool (cont.)

25. 6. Select provisioning type 25 Creating virtual disk from storage pool (cont.) 7. Select size of virtual disk

26. 8. Check properties then click “Create” 26 9. Check results then click “Close” Creating virtual disk from storage pool (cont.)

27. 27 10. Virtual disk created Creating virtual disk from storage pool (cont.)

28. 28 Create iSCSI targets Connect iSCSI targets to Windows Server 2012 Add iSCSI targets to storage pool Create a virtual disk from a storage pool Create a logical volume from a logical disk TeraStation™ Windows Server Step 5

29. 1. Select the new Virtual Disk that was created 2. Right Click and select “New Volume…” - New Volume Wizard will open 29 Creating a volume from a virtual disk

30. 3. Click “Next” 30 4. Select the new virtual disk that was just created 5. Click “Next” Creating a volume from a virtual disk (cont.)

31. 6. Specify volume size 31 7. Select desired drive letter Creating a volume from a virtual disk (cont.)

32. 8. Select desired file system 32 Creating a volume from a virtual disk (cont.) 9. Check settings then click “Create”

33. 10. Check results then click “Close” 33 11. Under “virtual disk” new drive letter will be available Creating a volume from a virtual disk (cont.)

34. Logical volume created New volume can be seen in Windows Explorer For Option 2 (creating multiple volumes) repeat process from slide 16 for other TeraStations (iSCSI targets), and assign new drive letter. 34 Creating a volume from a virtual disk (cont.)

35. Future Expansion 35

36. Flexible future storage expansion Additional TeraStation™ can be added on To increase capacity of an existing logical volume As a new logical volume 36 Future Expansion

37. Appendix 37

38. 38 Storage Layout While creating a virtual disk based on a storage pool form Server Manager/File and Storage Services/Volumes/Storage Pools, there are three levels of software RAID available as illustrated below. These RAID settings are presented as options of Windows Server 2012 Storage Layout including: Simple - This is a stripe set without parity or mirroring by striping data across multiple disks, similar to RAID 0. Compared with a single disk, this configuration increases throughput and maximizes capacity. There is however no redundancy and it does not protect data from a disk failure. Mirror - This is a mirror set without striping or parity by duplicating data on two or three disks, similar to RAID 1. It increases reliability with reduced capacity. This configuration requires at least two disks to protect data from a single disk failure, or at least five disks to protest from two simultaneous disk failure. Parity - This is a striped set with distributed parity by striping data and parity information across multiple disks, similar to RAID 5. It increases reliability with reduced capacity. This configuration requires at least three disks to protect data from a single disk failure, and cannot be used in a failover cluster. - See more at: http://blogs.technet.com/b/yungchou/archive/2012/08/31/windows-server-2012-storage-virtualization-explained.aspx#sthash.vQPhe9bM.dpufhttp://blogs.technet.com/b/yungchou/archive/2012/08/31/windows-server-2012-storage-virtualization-explained.aspx#sthash.vQPhe9bM.dpuf http://blogs.technet.com/b/yungchou/archive/2012/08/31/windows-server-2012-storage-virtualization-explained.aspx Appendix A