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HP StorageWorks 2300 - Disk System Configuration

18gb-36gb-72gb
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Replacement Procedure: DS2300 Disk Drive, 18GB-36GB-72GB
You can add or replace disks to increase storage capacity or eliminate faults. (See Chapter 4 of the
HP StorageWorks Disk System 2300 User' s Guide
Disks must be Ultra-3 SCSI (LVD) and 3.5 inches wide but can vary in capacity.
For current information about supported disks, consult an HP sales representative.
You do not need to turn off the disk system to replace a disk or filler.
Caution Do not remove hot-pluggable components until you have the replacement parts and are ready to
install them. An empty slot will cause uneven cooling and eventual overheating.
Preparation (HP-UX 11.XX)
Removing or replacing a disk has consequences for the file systems and logical volumes located on the disk.
Before removing or replacing a disk, complete the appropriate system administration for your environment
and configuration.
Instructions for determining physical volume status and reducing and recreating mirrored extents follow. For
additional information, refer to your HP-UX guide, How HP-UX Works: Concepts for the System
Administrator.
The LVM commands in the following instructions assume the following:
? ? All of the extents of the disk in use belong to mirrored logical volumes created with the strict (-s)
option.
? ? The replacement disk is of the same or greater capacity as the disk being replaced.
The correct set of instructions depends on whether the mirrored volume is active and attached, or
unattached.
First, follow the instructions to determine the volume status; then follow the instructions to replace the volume
depending on whether the volume is attached or unattached.
Shortcuts:
To Determine If a Volume Group or Physical Volume Group is Active
To Determine If the Physical Volume is Attached
To Replace Attached Physical Volumes
To Replace Unattached Physical Volumes
NT
Disk Replacement Procedure
for troubleshooting procedures.)
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Summary of Contents for HP StorageWorks 2300 - Disk System

  • Page 1 Replacement Procedure: DS2300 Disk Drive, 18GB-36GB-72GB You can add or replace disks to increase storage capacity or eliminate faults. (See Chapter 4 of the HP StorageWorks Disk System 2300 User’ s Guide for troubleshooting procedures.) Disks must be Ultra-3 SCSI (LVD) and 3.5 inches wide but can vary in capacity. For current information about supported disks, consult an HP sales representative.

  • Page 2: To Determine If A Volume Group Or Physical Volume Group Is Active

    To Determine If a Volume Group or Physical Volume Group is Active At the host console, enter: # vgdisplay For example: #vgdisplay /dev/vg00 If the volume group is not active, the host will display: # vgdisplay: volume group not activated. # vgdisplay: cannot display volume group /dev/vg00 Note The following messages will appear if the disk is defective: VGDISPLAY: WARNING: COULDN’...

  • Page 3: To Determine If The Physical Volume Is Attached

    To Determine If the Physical Volume is Attached At the host console, enter: # vgchange -a y to activate the volume group. For example: # vgchange -a y /dev/vg00 The physical volume is unattached if a message similar to the following appears: VGCHANGE: WARNING: COULDN’...

  • Page 4: To Replace Attached Physical Volumes

    To Replace Attached Physical Volumes Use the following commands to reduce any logical volumes that have mirror copies on the faulty disk and to recreate the mirror extents once the disk has been replaced. Commands to recover from a host failure are included with most steps.
  • Page 5 If the host fails, repeat the step to ensure all configuration data is written to the new disk. Note If this replacement procedure is being performed now on another host system and there is no need to execute any lvreduce commands, then the configuration file can be updated with thevgcfbackup command. Step 5 Enter the following command to attach the replaced disk to the active volume group: # vgchange -a y ...

  • Page 6: To Replace Unattached Physical Volumes

    To Replace Unattached Physical Volumes Follow these instructions if the volume group is not active or if the physical volume is unattached. Step 1 Physically replace the disk. Note The procedure is detailed below in the Disk Replacement Procedure section, as well as on the Disk Replacement Sheet provided with the replacement drive.
  • Page 7 If the host fails during this step, execute an lvdisplay command to determine if the lvextend command was successful. If the command did not successfully execute, reissue the command. Perform any other lvextend commands that were not executed before the system failed. At this point, the system should be fully functioning.
  • Page 8 Follow these instructions for NT systems. Physically replace the disk. Note The procedure is detailed below in the Disk Replacement Procedure section, as well as on the Disk Replacement Sheet provided with the replacement drive. Step 1 After installing the disk module, execute the Disk Administrator utility to configure the new disk module.
  • Page 9 Disk Replacement Procedure Disks must be Ultra-3 SCSI (LVD) and 3.5 inches wide but can vary in capacity. For current information about supported disks, consult an HP sales representative. You do not need to turn off the array to replace a disk or filler. Caution Do not remove hot-pluggable components until you have the replacement parts and are ready to install them.
  • Page 10 Step 3 Push down release tab (B in Figure 1), pull up the lever (A) on disk to be replaced. Step 4 Caution Wait 15 seconds for the disk to spin down. There is a danger of damage to the disk if it is dropped due to gyroscopic effects.

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Ds2300