10 days ago I Recently added 15TB of SATA storage and a new Fabric with 4
new LTO drives to our 3584 library,
The DB is approx 90GB TSM

Few days ago I noticed processing had ground to halt, after digging around I
have found as soon as server gets busy maybe 4 processes 8 or so sessions
the recovery log begins "sh logpinned" to pin and the Database gets locks.
Shown by running "sh locks"
And as result the server suffers!
Now today I have stopped using the new Tech LTO 3 and SATA and things are
coping better but still worse than previous as soon as load is increased Log
pins and processing slows drastically.

Are there any steps I can take which will help my scenario.
Would a DB UNLOAD RELOAD help that much?

Reference: Recovery log has heaps of room DB has heaps of room 90Gb DB with
100GB of room.

Any advice is much appreciated.