Hp StorageWorks 1510i Modular Smart Array Manuel d'utilisateur télécharger pdf (Page 42)

2. As needed, expand the drop-down boxes in the task area to change the settings from the suggested

defaults.

NOTE:

• The SMU suggests defaults for the logical drive, creating one large logical drive from all

unused space on the array, with the highest fault tolerance and performance possible

for the hard drives included in that array.

•OnlyFault Tolerance levels possible for the array are displayed. For example, RAID 5

is not listed if the array has only two physical hard drives.

•ThedefaultStripe Size gives optimum performance in a mixed read/write environment.

• For read-prominent environments, use a larger stripe size.

• For write-prominent environments, use a smaller stripe size for RAID 5 or

RAID_ADG,andalargerstripesizeforRAID0orRAID1+0.

• To build multiple logical drives on the same array, reduce the Size setting from the

default to a smaller amount. Additional logical drives can then be built from the

remaining unused space.

•DisablingtheArray Accelerator for a logical drive reserves use of the accelerator

cacheforotherlogicaldrivesinthearray.Thisfeatureisusefulifyouwanttheother

logicaldrivestohavethemaximumpossibleperformance.

3. When the display refreshes, verify that the conﬁgured logical drives are shown in the component list.

4. Repeat Step 1 through Step 3 to create additional logical drives for this array, or to create logical

drives for other arrays.

Conﬁgurationstatus-afterconﬁguring hard drives

Figure 10 illustrates the current conﬁguration.

The following items are conﬁgured:

• Management port MA0 and MB0

• DataportsSA0,SA1,SB0,andSB1

• Physical hard drives, into:

• Array A—Four (4) 160 GB hard drives, with no assigned spare

• Logical drive 1—RAID 1+0

• ArrayB—Three(3)250GBharddrives,withanassignedspare

• Logical drive 2—RAID 5

• Array C—Three (3) 250 GB hard drives, with an assigned spare

• Logical drive 3—RAID 5

Conﬁgure

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 ... 98 99

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Hp StorageWorks 1510i Modular Smart Array Manuel d'utilisateur Page 42