Seagate ST34572WC Especificaciones descargar pdf (Pagina 36)

o For raw volumes, restore the full raw volume using the utility that was used to create your

backup. Then restart the application.

o For file systems, you must recreate the file systems first. For example:

# newfs -F fstype /dev/vgnn/rlvolnn

Use the logical volume's character device file for the newfs command. For file systems that

had nondefault configurations, see newfs(1M) for the correct options.

After creating the file system, mount it under the mount point that it previously occupied. Then

restore the data for that file system from your full backups.

Tip: To make the file system recreation step easier, record how they were originally created.

You can change other file system parameters, such as those used to tune file system

performance. The file system must be at least as large as before the disk failure.

Replacing a Mirrored Boot Disk

There are two additional operations you must perform when replacing a mirrored boot disk:

1. You must initialize boot information on the replacement disk.

2. If the replacement requires rebooting the system, and the primary boot disk is being replaced, you

must boot from the alternate boot disk.

In this example, the disk to be replaced is at lunpath hardware path 0/1/1/1.0x3.0x0, with device

special files named /dev/disk/disk14 and /dev/rdisk/disk14. The system is an HP Integrity

server, so the physical volume names must specify the HP-UX partition on the boot disk

(/dev/disk/disk14_p2 and /dev/disk/disk14_p2).

1. Save the hardware paths to the disk.

Run the ioscan command and note the hardware paths of the failed disk as follows:

# ioscan –m lun /dev/disk/disk14

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

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

disk 14 64000/0xfa00/0x0 esdisk CLAIMED DEVICE offline 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

In this example, the LUN instance number is 14, the LUN hardware path is 64000/0xfa00/0x0,

and the lunpath hardware path is 0/1/1/1.0x3.0x0.

When the failed disk is replaced, a new LUN instance and LUN hardware path are created. To

identify the disk after it is replaced, you must use the lunpath hardware path

(0/1/1/1.0x3.0x0).

2. Halt LVM access to the disk.

If the disk is not hot-swappable, power off the system to replace it. By shutting down the system,

you halt LVM access to the disk, so you can skip this step.

If the disk is hot-swappable, detach the device using the –a option of the pvchange command:

# pvchange -a N /dev/disk/disk14_p2

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 66 67

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Seagate ST34572WC Especificaciones Pagina 36