Seagate ST34572WC Spécifications télécharger pdf (Page 37)

Note: On an HP 9000 server, the boot disk is not partitioned so the physical volume refers to the

entire disk, not the HP-UX partition. Enter the following command:

# pvchange -a N /dev/disk/disk14

3. Replace the disk.

For the hardware details on how to replace the disk, see the hardware administrator’s guide for

the system or disk array.

If the disk is hot-swappable, replace it.

If the disk is not hot-swappable, shut down the system, turn off the power, and replace the disk.

Reboot the system. Two problems can occur:

 If you replaced the disk that you normally boot from, the replacement disk does not contain the

information needed by the boot loader. In this case, interrupt the boot process and boot from

the mirror boot disk, which is configured as the alternate boot path.

 If there are only two disks in the root volume group, the system probably fails its quorum check

as described in Volume Group Activation Failures. It can panic early in the boot process with

the message:

panic: LVM: Configuration failure

In this situation, you must override quorum to boot successfully. Do this by interrupting the

boot process and adding the –lq option to the boot command.

For information on the boot process and how to select boot options, see the HP-UX System

Administrator's Guide: Configuration Management.

4. Notify the mass storage subsystem that the disk has been replaced.

If the system was not rebooted to replace the failed disk, run scsimgr before using the new disk

as a replacement for the old disk. For example:

# scsimgr replace_wwid –D /dev/rdisk/disk14

This command allows the storage subsystem to replace the old disk’s LUN World-Wide-Identifier

(WWID) with the new disk’s LUN WWID. The storage subsystem creates a new LUN instance and

new device special files for the replacement disk.

5. Determine the new LUN instance number for the replacement disk. For example:

# ioscan –m lun

Class I Lun H/W Path Driver S/W State H/W Type Health Description

========================================================================

disk 14 64000/0xfa00/0x0 esdisk NO_HW DEVICE offline HP MSA Vol

/dev/disk/disk14 /dev/rdisk/disk14

/dev/disk/disk14_p1 /dev/rdisk/disk14_p1

/dev/disk/disk14_p2 /dev/rdisk/disk14_p2

/dev/disk/disk14_p3 /dev/rdisk/disk14_p3

...

disk 28 64000/0xfa00/0x1c esdisk CLAIMED DEVICE online HP MSA Vol

0/1/1/1.0x3.0x0

/dev/disk/disk28 /dev/rdisk/disk28

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 66 67

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Seagate ST34572WC Spécifications Page 37