Adaptec AHA-3980 Betriebsanweisung PDF herunterladen (Seite 58)

7-4

Creating and Managing Arrays

Stock Number: 510685-00, Rev. A Page: 7-4

Print Spec Number: 493069-00

Current Date: 3/3/99 ECN Date: 3/28/95

If more than one disk is available, a second prompt

appears, asking how many spares the array will have. Type

the number (1 or 2), and press

Enter

To select each spare, follow the directions given in step 7.

When you have selected the specified number of spares,

the Selection List menu reappears automatically.

Note:

A spare must have at least the capacity of

the smallest disk in the array.

To add another array, select the array from the Selection List

menu, then repeat steps 4 through 8.

When you have finished defining arrays and you are back at the

Selection List menu, press

Esc

. Either the System Configuration

menu or the Config menu appears (the menu you see depends

on the menu you started from in step 1).

Format the array as described in Chapter 4, Formatting Arrays.

Modifying an Array

You can modify an existing array by changing the RAID level, by

changing the disks in the array, or by adding or changing a spare

disk. If you change the disks or the RAID level, you must format the

array after you configure it (for instructions, see Chapter 4, Format-

ting Arrays). If you only add or change a spare disk, you need not

reformat the array.

Changing the RAID Level

To convert from RAID 0 CVT to RAID 5 CVT or from RAID 5 CVT to

RAID 0 CVT, see Converting between RAID 0 CVT and RAID 5 CVT

Formats on page 7-7. You do not lose data if you convert between

RAID 0 CVT and RAID 5 CVT formats.

To change an array to any other RAID level, first make sure the

number of disks in the array is suitable for the new level (see Number

of Disks in an Array on page 1-3). If it is, you can change the RAID

level simply by reformatting the array for that RAID level. For for-

matting instructions, see Chapter 4, Formatting Arrays.

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Adaptec AHA-3980 Betriebsanweisung Seite 58