Hi All,
I have a performance problem when doing Space-Reclaamtion, or backup storage
pool, when TSM is copying data from one tape drive to the other.
Environment:
Windows 2K server, TSM 4.2.1.15.
Library, Compaq MSL5026, with 2 SDLT drives (Single Module Library).
SCSI Controller, Compaq 64-bit/66Mhz Dual Channel Wide Ultra3 SCSI Adapter
(Compaq version of Adaptec 39160)

Moving data from Disk to Tape runs with expected speed (8-10 MB/s).

>From Tape to tape speed is around 2MB/s. (50GB takes about 7-8hours.)

Does anyone know why? It is killing my daily operations.

Mvh
Geirr G. Halvorsen
TSM Enterprise Backup Specialist
WMdata Danmark A/S