Tape Backup Unit (Optional); Removing The Tape Backup Unit - Dell PowerEdge E31S Series Owner's Manual

Figure 108. Installing the 3.5 inch (x8) SAS/SATA backplane
1. release tab (2)
3. backplane signal connector
5. mini SAS cable connector
Next steps
1. Replace the cooling fan assembly.
2. Replace the cooling shroud.
3. Install the hard drives in their original locations.
4. Follow the procedure listed in the After working inside your system section.

Tape backup unit (optional)

A tape backup unit (TBU) is a data storage device that reads and writes data on a magnetic tape. A TBU has the ability to
periodically copy the contents of all or a designated amount of data from its usual storage device to a tape cartridge device so
that, in the event that the source get irreparable damaged, the data will not be lost.
The tape backup unit is supported only on 2.5-inch hard drive systems.

Removing the tape backup unit

Prerequisites
1. Follow the safety guidelines listed in safety instructions section.
2. Follow the procedure listed in the Before working inside your system section.
CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by
your warranty. Read and follow the safety instructions that are shipped with your product.
Steps
1. Disconnect the power and data cables from the back of the tape backup unit.
168 Installing and removing system components
2. SAS cable (2)
4. backplane power cable
6. hard drive backplane