HP Modular Smart Array 500 Starter Kit Manuale Utente Scaricare il pdf (Pagina 23)

System Preparation

HP Smart Array Multipath Software User Guide 1-15

HP CONFIDENTIAL

Writer: Rob Weaver File Name: b-ch1 System Preparation.doc

Codename: BorealisII Part Number: 307958-003 Last Saved On: 9/19/03 9:20 AM

2. Verify that the md driver is in the kernel. Enter:

dmesg | grep md | more

This command shows the boot-time messages. If the md driver was loaded,

several messages should appear, similar to the following messages:

md: md driver version X.X

md: Autodetecting RAID arrays

md: autorun…

md: …autorun DONE

3. If the multipath driver was built as a module but not loaded, load the module.

Enter:

insmod multipath

This command loads the driver. If the driver does not load the multipath module,

rebuild the module. Refer to “Making and Installing the Module” in this chapter.

4. After verifying loaded drivers, make the raid files. For the sample partition table

in the “Sample RAIDTAB Configuration File” section, enter:

mkraid /dev/md0

mkraid /dev/md1

mkraid /dev/md2

mkraid /dev/md3

CAUTION: Do not use Fdisk or mkraid to create any other partitions on this

logical drive. This action results in data corruption and data loss.

5. If mkraid responds that the partition contains existing data, do the following:

a. Force the mkraid to run. Enter:

mkraid – f

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HP Modular Smart Array 500 Starter Kit Manuale Utente Pagina 23