HP P3410A HP NetRAID Series User Guide - Page 70
CanSpan, Enter, Advanced, Stripe size, Write Policy, Read Policy, Cache Policy
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Chapter 3 HP NetRAID Config NOTE The arrays to be spanned must have sequential array numbers and must contain the same number of physical drives. If you select CanSpan, HP NetRAID Assistant will attempt to span up to four arrays. Array spanning stops when: • It has created a logical drive of the size you specify in Step 10 below. • The next sequentially numbered array has a different number of drives. Spanned arrays must contain the same number of drives in each array. 10. To set the logical drive size, move the cursor to Size and press Enter. By default, the logical drive size is set to use all available space in the array(s) associated with the current logical drive. If you set the Span parameter to CanSpan in Step 9, the current logical drive uses all space in the current array, and all space in up to three subsequent arrays with the same number of drives. • If you want to create more than one logical drive in an array, set a size of less than the actual capacity. • If you want to span only two or three arrays, rather than the four-array maximum, set a size that reflects the number of arrays you want to span. 11. Choose the Advanced menu to set the following options. • Stripe size: This parameter specifies the size of the segment written to each disk in a logical drive. • Write Policy: This parameter identifies the cache write policy. You can set the write policy to Write-Back or Write-Through. • Read Policy: This parameter identifies the read policy for the logical drive. You can set this parameter to Normal, Read-Ahead, or Adaptive. • Cache Policy: This parameter identifies the cache policy for the selected logical drive. (For definitions of the Write policy, Read policy, Cache policy, and their options, see the "Glossary" in this guide.) Press Esc to exit the Advanced Menu. 64