HP Xw8400 HP xw8400 Service and Technical Reference Guide - Page 161

Attach sequence worksheet, Primary, Controller

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4 1 3 2 Primary Controller* 4 1 Installing drive order *If there are three or more devices, two or more of which are hard drives, two hard drives should be attached to the primary controller first before following the general attach sequence rule. The attach sequence rule can also be stated in table format: Table C-2 General attach sequence rule Sequence Description 1 The lowest class drive-Bootable hard drive recommended. 2 If only two drives, the last drive goes here; otherwise, the lowest class of the remaining drives goes here. 3 If only three drives, attach the final drive here. If a fourth drive exists, attach the lowest class drive here. 4 If there is a fourth drive, attach the final drive here-the drive with the highest class number of all devices. If there are three or more devices, two or more of which are hard drives, two hard drives should be attached to the primary controller first before following the general attach sequence rule. The rules allow for: ● Keep the hard drive on a separate controller channel to maximize drive performance until a fourth device is added. ● Keep the hard drives and removable media drives on separate controller channels to maximize compatibility. ● Keep the hard drive and the writable optical drive on separate controller channels to maximize optical drive reliability. Attach sequence worksheet Use the worksheet below to obtain optimum system performance when setting up a workstation with multiple drives. Use the general attach sequence rule to determine the best drive installation sequence. Table C-3 Attach sequence worksheet Device name Device class Position number Controller name Device number ENWW Drive installation guidelines 151

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1
2
4
3
Primary
Controller*
4
1
Installing drive order
*If there are three or more devices, two or more of which are hard drives, two hard drives should be
attached to the primary controller first before following the general attach sequence rule.
The attach sequence rule can also be stated in table format:
Table C-2
General attach sequence rule
Sequence
Description
1
The lowest class drive—Bootable hard drive recommended.
2
If only two drives, the last drive goes here; otherwise, the lowest class of the remaining drives goes
here.
3
If only three drives, attach the final drive here. If a fourth drive exists, attach the lowest class drive
here.
4
If there is a fourth drive, attach the final drive here—the drive with the highest class number of all
devices.
If there are three or more devices, two or more of which are hard drives, two hard drives should be attached to the
primary controller first before following the general attach sequence rule.
The rules allow for:
●
Keep the hard drive on a separate controller channel to maximize drive performance until a fourth
device is added.
●
Keep the hard drives and removable media drives on separate controller channels to maximize
compatibility.
●
Keep the hard drive and the writable optical drive on separate controller channels to maximize
optical drive reliability.
Attach sequence worksheet
Use the worksheet below to obtain optimum system performance when setting up a workstation with
multiple drives. Use the general attach sequence rule to determine the best drive installation sequence.
Table C-3
Attach sequence worksheet
Device name
Device class
Position
number
Controller name
Device
number
ENWW
Drive installation guidelines
151