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Determining Maximum Storage Capacity
The maximum number of controllers and drives supported depends on several
factors. To determine the number of drives supported by your server, refer to the
Setup and Installation Guide, or Reference Guide, that accompanied your
server. Server specifications are also available at our website, www.compaq.com.
For information on expanding storage capacity, see Appendix D, "Adding
Storage Capacity."
Changing the Fault Tolerance
Below is an overview of procedures for changing fault tolerance.
1.
Decide on a fault-tolerance method. Review Appendix D,
"Understanding Drive Arrays," and choose the fault-tolerance method
that best suits your needs.
2.
Back up data. Changing the fault tolerance will destroy the data on that
logical drive. You must back up all data in the logical drive that you will
be changing.
3.
Configure drive array. Proceed to Chapter 6, "Running the Array
Configuration Utility," for information on reconfiguring your drive array
with the new fault-tolerance method.
4.
Restore data. Copy the backed up data into the same logical drive. Your
system automatically redistributes the data according to the new
fault-tolerance method.
Moving Drives Offline
Drives can be moved to alternate ID positions on the same array controller as
long as no drives are failed. (For information on moving arrays from one
controller to another, see the section in this chapter, "Moving Arrays.")
Writer: Karen Hale Project: Compaq Smart Array 221 Controller User Guide Comments: 388541-001
CAUTION: Although data loss is not anticipated during drive
movement, it is recommended that you back up data before
moving drives.
File Name: C-CH02.DOC Last Saved On: 11/5/98 12:27 PM
COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED
Compaq Smart Array 221 Controller User Guide
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