HP 7800 Technical Information

1Advanced Host Controller Interface (AHCI) and Redundant Array of Independent Disks (RAID) on HP Compaq dc7800 Business PCsUsing Intel Matrix Storage

10Intel Matrix Storage TechnologyThis technology provides protection against data loss from a hard drive failure and faster access to digital photo, v

11Figure 6 Matrix RAID combining reliability and performance with same three hard drivesConfigurations Recommended configurationsHP recommends factory

12Hardware and firmware support is present to take advantage of the future Microsoft Vista operating sys-tem. Intel Matrix Storage Technology RAID sof

13NOTES: The following notes are important for RAID configuration:• RAID 1 is the only RAID configuration that HP Compaq dc7800 Business PC products o

14• Different cache size• RAID combinations of hard drives with any operating system other than Microsoft XP Pro (SP2) using Microsoft’s IDE driver st

15CAUTION: Do NOT turn the computer power off while the ROM is saving the F10 Computer Setup changes as the CMOS could become corrupted. Only turn the

16Configuring RAID Volume using the Option ROM1. Once you are in the Option ROM, if there are no previous RAID member hard drives, press Ctrl + I to e

172. With Create RAID Volume selected, press Enter to access the Create Volume screen.3. Select or enter the desired RAID Level. Use the information o

184. Use the arrow keys to scroll to Create Volume, and press Enter. The following screen appears.CAUTION: All data on the selected disk will be delet

19Intel Matrix Storage Manager software installationThis section of the paper focuses on how to configure RAID using Intel Matrix Storage Manager soft

2RAID migrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20Migration to RAID 1

20Using the Intel Matrix Storage Console interface1. Click Start > All Programs > Intel Matrix Storage Manager/Intel Matrix Storage Console to o

211. Open the Intel Matrix Storage Console and in the left pane select either Protect data from a hard drive failure with RAID 1 or Improve storage pe

22Degradation In the unlikely event that one of your hard drives malfunctions, you will be notified with the following mes-sage:1. Run the Intel Matri

233. After replacing the hard drive, automatic rebuild of the redundancy begins immediately after the sys-tem is powered up and operating system start

243. Click Yes to begin the migration process.4. Click OK after the migration completes.Migration to RAID 0 from three non-RAID hard drives using Inte

253. Click Next.4. Type the RAID Volume Name, select the RAID Level (for three hard drive RAID 0 or RAID 5 only), and select the Strip Size.NOTE: HP c

265. Click Next to display the selection of hard drives that will be part of this RAID volume.6. Select all three hard drives (Port 0, Port 1, and Por

278. Select all hard drive members of the RAID volume, and then click the right arrow to place all three hard drives in the Selected box.9. Click Next

2812. Select Finish to start the migration process, which can take a few hours.After you click Finish, the migration starts and the following screen d

292. Click Actions/Create RAID Volume from Existing Hard Drive to open a verification win-dow.3. Click Next.4. Type the RAID Volume Name, select the R

3IntroductionThis whitepaper covers two drive technologies that are provided on the HP Compaq dc7800 Business PC products, AHCI and RAID. This whitepa

305. Click Next to see the selection of hard drives that will be part of this RAID volume.6. Select all three hard drives (Port 0, Port ,1 and Port 2)

318. After the selection of the all hard drive members of the RAID volume, complete the volume size selec-tion screen, and then click Next.NOTE: If us

3210. Select Finish to start the migration process, which can take a few hours. The following screen dis-plays.11. Reboot the system after the migrati

332. Click Actions/Create RAID Volume from Existing Hard Drive to open a verification win-dow.3. Click Next.4. Type the RAID Volume Name, select the R

345. Click Next to see the selection of hard drives that will be part of this RAID volume.6. Select all three hard drives (Port 0, Port ,1 and Port 2)

358. After the selection of the all hard drive members of the RAID volume, complete the volume size selec-tion screen, and then click Next.NOTE: If us

3611. Click Finish to start the migration process, which can take a few hours. 12. Reboot the system after the migration finishes.NOTE: Back up all da

3714. Click Next.15. Use the same values you entered in the previous RAID volume confirmation and type the RAID Vol-ume Name, select the RAID Level (f

3817. Because this is the second volume for this set of hard drives, select the existing name in the Avail-able box (Array 0000), and then click the r

3920. Select Finish to start the migration process, which can take a few hours. The following screen appears.

4Single Drive AHCI ConfigurationTo take advantage of single drive AHCI support, a change is required in F10 setup. To run a single drive configuration

4021. Reboot the system after the migration finishes.After the second reboot and both migrations are complete, you can see the state of the Matrix mod

41Migration to RAID Matrix Mode (0 + 1) from two non-RAID hard drives using Matrix Storage Console The migration process for two hard drives to RAID M

42Language support tableara Arabic (Saudi Arabia) (0401)chs Chinese (Simplified) (0804)cht Chinese (Traditional) (0404)csy Czech (0005)dan Danish (00

5Basic RAID TypesThis section provides a brief explanation of the supported RAID configurations for HP Compaq dc7800 Busi-ness PCs.RAID 0 with two har

6Figure 1 Performance - RAID 0 with two hard drivesAt a higher reliability cost with faster performance, the HP Compaq dc7800 Business PC Convertible

7RAID 1 with two hard drives (Mirror)Because it is a very cost-effective way to increase system storage reliability and a great value proposition, RAI

8Figure 3 Reliability: RAID 1 - MirroringRAID 5 with three hard drivesRAID 5 has been used in servers for many years and is one of the most common typ

9Table 4 RAID 5 with 3 hard drives (Parity)In the previous table, each “Data Segment x” represents a strip. A stripe is made with strip “Data Segment