3ware, tw_cli, disassemble/rebuild array

[Robert Citek <rwcitek@alum.calberkeley.org>]

How does one disassemble and rebuild a RAID array using the tw_cli 
command that comes with 3ware RAID controller cards?

We have a RAID5 that looks like this:

# tw_cli info c1
Controller 1
-------------
Model:    7500-8
FW:       FE7X 1.05.00.049
BIOS:     BE7X 1.08.00.046
Monitor:  ME7X 1.01.00.035
Serial #: F11605A3190051
PCB:      Rev3
PCHIP:    V1.30
ACHIP:    V3.20

# of units:  1
         Unit  0: RAID 5 1.40 TB (2735039104 blocks): DEGRADED

# of ports:  8
         Port  0: WDC WD2000JB-32EVA0 WD-WMAEH1126870 200.4 GB 
(390721968 blocks): OK (unit  0)
         Port  1: WDC WD2000JB-32EVA0 WD-WMAEH1129831 200.4 GB 
(390721968 blocks): OK (unit  0)
         Port  2: DRIVE NOT PRESENT
         Port  3: WDC WD2000JB-32EVA0 WD-WMAEH1129787 200.4 GB 
(390721968 blocks): OK (unit  0)
         Port  4: WDC WD2000JB-32EVA0 WD-WMAEH1118068 200.4 GB 
(390721968 blocks): OK (unit  0)
         Port  5: WDC WD2000JB-32EVA0 WD-WMAEH1129746 200.4 GB 
(390721968 blocks): OK (unit  0)
         Port  6: WDC WD2000JB-32EVA0 WD-WMAEH1132152 200.4 GB 
(390721968 blocks): OK (unit  0)
         Port  7: WDC WD2000JB-32EVA0 WD-WMAEH1118150 200.4 GB 
(390721968 blocks): OK (unit  0)


What we would like to do is remove all the drives (0-7) and then 
rebuild the array.  Is that possible via the tw_cli, or do we need to 
reboot the machine and do this from the console window before Linux 
boots?  Been googling but haven't found any useful info, yet.

System is a Red Hat Linux 9 box.

Regards,
- Robert


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