Follow these recommendations to obtain the best I/O performance on the ClearCase LT server:
Use disks with fast seek times and high rotational speeds.
Where practical, dedicate a disk spindle for each VOB.
For very busy VOBs, dedicate two disk spindles per VOB if the VOB server host provides such a feature: one for the database and source directories, and one for the cleartext and DO pools.
Use stripe technology (RAID 0) for improved performance.
Use mirroring (RAID 1) if high availability is desired.
Avoid RAID 5, unless your benchmarks show equal performance to RAID (0+1).
Consult your system documentation for details about how to use disk striping and mirroring
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