Overview: The HP StorageWorks MSL5026 Tape Library provides a high performance mission critical automated mid-range backup and restore solution using HP StorageWorks SDLT 320 GB tape drives in a compact 5U form factor for direct-SCSI-attached and SAN environments. It provides unique investment protection with multi-unit scalability and a PCI backplane for future feature expansion. The MSL5026 defines a new segment in the mid-range segment with high availability features normally found on enterprise libraries. The MSL5026SL uses hot-pluggable SDLT drive carriers allowing drive replacement without interrupting backup and restore functions. These hot-pluggable drive trays allow for easy scalability of performance as well as provide an easy upgrade path towards future SDLT drive technologies. It offers 5.72TB (with 2:1 compression) of storage providing the highest capacity in its class in a compact 5U rackmount form factor. The MSL 5026SL has the capability for multi-unit scalability; up to 7 libraries can be scaled together in a virtual library for up to 40.04TB (compressed) of capacity. The first two modules are linked using Passthrough Mechanism which has the elevator mechanism for tape movement. The addition of subsequent modules requires the Pass through extender (one for each additional module).