Draft Document for Review February 7, 2020 3:15 pm 8464ch07_Upgrade.fm Figure 7-18 shows the TS7760 Cache drawer from the front.  Figure 7-18 TS7760 Cache Drawer 3956-XSA (front view)  Figure 7-19 shows the TS7760 Cache drawer from the rear. Figure 7-19 TS7760 Cache Drawer 3956-XSA (rear view) 7.1.4 TS7700 tape library attachments, drives, and media In TS7700 configurations, the TS7760T and TS7770 are used with an attached tape library.  The TS7760T and TS7770 must have their own logical partitions (LPARs) within the TS3500  or TS4500 tape library, with dedicated tape drives and tape cartridges.  A TS7760T or a TS7770 attached to a TS3500 or TS4500 tape library interfaces directly with  tape drives in the library. When attached to a TS3500 or TS4500 tape library, the TS7700 can attach only to 3592 Tape  Drives. Up to 16 3592 Tape Drives can be attached. Communication, control, and data signals travel along Fibre Channel connections between  the TS7700 and tape drives that are contained in the TS3500 or TS4500 tape library. A pair of  Fibre Channel switches routes the data to and from the correct tape drive.  Note:  TS1140 EH7 tape drives and TS1150 EH8 tape drives are used with the TS4500  tape library. All other tape drives are used with the TS3500 tape library. The 3592 Tape Drives supported for use with the TS7760T and TS7770 include: GLYPH<SM590000> TS1150 Tape Drive GLYPH<SM590000> TS1140 Tape Drive GLYPH<SM590000> TS1130 Tape Drives Tape drives Chapter 7. Hardware configurations and upgrade considerations  263 Tape libraries