Seagate ST34572WC Especificaciones descargar pdf (Pagina 38)

In this example, LUN instance 28 was created for the new disk, with LUN hardware path

64000/0xfa00/0x1c, device special files /dev/disk/disk28 and /dev/rdisk/disk28, at

the same lunpath hardware path as the old disk, 0/1/1/1.0x3.0x0. The old LUN instance 14

for the old disk now has no lunpath associated with it.

Note: If the system was rebooted to replace the failed disk, then ioscan –m lun does not

display the old disk.

6. (HP Integrity servers only) Partition the replacement disk.

Partition the disk using the idisk command and a partition description file, and create the

partition device files using insf, as described in Mirroring the Root Volume on Integrity Servers.

7. Assign the old instance number to the replacement disk. For example:

# io_redirect_dsf -d /dev/disk/disk14 -n /dev/disk/disk28

This assigns the old LUN instance number (14) to the replacement disk. In addition, the device

special files for the new disk are renamed to be consistent with the old LUN instance number.

The following ioscan –m lun output shows the result:

# ioscan –m lun /dev/disk/disk14

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

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

disk 14 64000/0xfa00/0x1c esdisk CLAIMED DEVICE online HP MSA Vol

0/1/1/1.0x3.0x0

/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

The LUN representation of the old disk with LUN hardware path 64000/0xfa00/0x0 was

removed. The LUN representation of the new disk with LUN hardware path

64000/0xfa00/0x1c was reassigned from LUN instance 28 to LUN instance 14 and its device

special files were renamed as /dev/disk/disk14 and /dev/rdisk/disk14.

8. Restore LVM configuration information to the new disk. For example:

# vgcfgrestore -n /dev/vg00 /dev/rdisk/disk14_p2

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:

# vgcfgrestore -n /dev/vg00 /dev/rdisk/disk14

9. Restore LVM access to the disk.

If you did not reboot the system in step 2, reattach the disk as follows:

# pvchange –a y /dev/disk/disk14_p2

On an HP 9000 server, use this command:

# pvchange –a y /dev/disk/disk14

If you did reboot the system, reattach the disk by reactivating the volume group as follows:

# vgchange -a y /dev/vg00

Note: The vgchange command with the -a y option can be run on a volume group that is

deactivated or already activated. It attaches all paths for all disks in the volume group and

resumes automatically recovering any disks in the volume group that were offline or any disks in

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Seagate ST34572WC Especificaciones Pagina 38