Hi all,

     Environment:

     NSM 3466, RS 6000, AIX 4.3.2 , TSM version 3.7.4,

     12 x 18.2 GB disk ( for DB and Diskpool Volumes)

     My current DB is of 80 GB size and is alarmingly utililized ( 95
     %).The DB volulmes are mirrored inside TSM ( Second Copy).

     Therefore another 80 GB space is being used for the second copies. In
     order to have more usable space for DB, a suggestion has been mooted
     to go for RAID-5 at the hardware level.

     IBM's version is that since a second copy MUST be kept , going for
     RAID 5 shall require more disk space. Now my question is:

     1. With the RAID 5 at AIX level, should a second, synchronized  copy
     of DB volumes is required.

     2. If I do not keep a second copy and take daily full backup, would it
     be RISKY.

     3. Configuring RAID 5 at this juncture, would anybody see any pitfall
     ahead.

     Any comments are welcome!

     Regards

     MAhesh