Format, Sector size, Data fill – Ciprico 6500 User Manual

Page 49: Start

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6500 Disk Array User’s Guide

21020690 B

Chapter 3 Display/Operation Panel

FORMAT

Page 3 - 19

FORMAT

From

)81&7,21 6(/(&7, use the left/right arrow keys to select )250$7

(“Menu Structure (4 of 5—Format & Drives)” on page 3-9).

Each disk in the array is written with a special “system sector” during
formatting that holds information about the array. For this reason, an array must
be formatted before it can be used. All arrays are formatted completely before
shipment. You must format the array only if, on power-up or reset, you see a
display similar to the following, which indicates that drives 9, 6, 5, and 4 in the
array are unformatted.

Note

If this type of display appears, format drives as described in
Chapter 4 of this guide.

SECTOR SIZE

The sector size options for 6500 arrays, expressed in bytes per sector, are 512,
1024, 2048, 4096, and 8192. Factory default setting is 512.

DATA FILL

This option writes a pattern to the data disks in the array, generates parity data,
and writes the parity data to the parity disk. If you do not choose to use data
fill, you may get an inter-drive parity error if you perform a read operation
before a write operation after format. The settings for this option are

21 and

2)). When set to 21, the array writes data to the drives in order to initialize
the parity drive. The default setting is

21.

START

This selection must be set to

<(6 before you press SELECT in order to format

the array.

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