HP 350546-B21 HP StorageWorks Ultrium Tape Drive Removable Model Getting Start - Page 9

Usage models The tape drive is installed in a tape array (B), which can be used in a standalone or network environment. The tape array should always be directly attached to a VHD SCSI connector on the storage server (A), as shown in Figure 1. Recommended models The following table shows the recommended usage models and "Optimizing performance" on page 31 provides further information about factors that can affect performance. Ultrium 960 Ultrium 460 Ultrium 230 Direct Attach, single storage server Recommended use a RAID disk subsystem Recommended Recommended Across the Network, single storage server, multiple clients Requires careful design to utilize the drive's performance capabilities, even Gigabit Ethernet will limit performance Recommended anything less than Gigabit Ethernet may limit performance Recommended Note: For Ultrium 460 and 230 drives, a RAID disk subsystem is also good practice, but a single disk may be sufficient, if it is a fast disk, such as a 15K RPM drive, and depending on your data's compressibility. You can use our free performance assessment tools, which are available standalone or integrated into HP Library & Tape Tools, to check tape performance and test whether your disk subsystem can supply data at the optimum transfer rate. You can also use these tools to calibrate your restore performance and maximal tape performance with more compressible data. table 1: recommended usage models Other models The tape drive may work with other usage models, such as network attach storage (NAS) and storage area networks (SAN), but HP does not currently provide technical support for installing and using standalone Ultrium tape drives with these architectures. Similarly, connection to fibre channel may be possible, if you purchase and install a fibre channel/SCSI bridge, but it is not currently a supported option. Please check www.hp.com/go/connect for the latest supported configurations. 7