1. Tape Drive Testing

2. IBM 3592 tape drive Maximum native data rate of 40 MB/s
60GB and 300 GB IBM 3592 cartridge
8 meters/s high-speed search
Compatible with IBM tape library and STK tape library (powderhorn)
1Gps/2Gps fibre channel connection
3592 tape drive
3584 library

3. Test infrastructure Tape Server IBM 3584 Tape Library Fiber
Qlogic Fiber Channel Bus Adapter
IBM 3592 Tape Drive

4. Functionality tests
Go through the set of commands available on the SCSI standard
Check returned information, timing, command acceptance
Test the most important/used commands
- load display, status, rewind, write, write file mark, rewind, read, space, load,
unload, erase, locate, request sense
But also test less important/used commands
- test unit ready, write buffer, send diagnostic, mode select, mode sense,
readblock, log select, log sense, inquiry, read buffer, release unit, report density
support, reserve unit

5. use fibre channel analyzer for verifying
Functionality tests
1) use IBM tape driver and IBM test utility (interactive/command line)
2) use Linux tape driver and CERN test utility (interactive/command line)
use fibre channel analyzer for verifying
SCSI commands

6. Mechanical tests Test mechanical reliability of robot / drive / media
- Perform mount/check label/dismount cycles on selected tapes and drives
Test mechanical reliability of drive / media
- Perform random file reads on selected tapes and drives.

7. Performance tests Read and write to tape Use UNIX command dd
Different amount of data, different block size, different compression rate
Verify integrity of data transferred with checksum
Kernel 2.4 and kernel 2.6 (improved version of kernel I/O scheduler)

8. Functionality + Mechanical + Performance … OK
Castor tests
Functionality + Mechanical + Performance … OK
and
Castor rtcopy test suite … OK
Castor Production