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Replacement Procedure: DS2405 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 2405 User' s Guide
Disks must be Fibre Channel (FC) 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
All manuals and user guides at all-guides.com
for troubleshooting procedures.)
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Summary of Contents for HP StorageWorks Disk System 2405
- Page 1 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.
- Page 2 All manuals and user guides at all-guides.com To Determine If a Volume Group or Physical Volume Group is Active At the host console, enter: # vgdisplay <VG name> For example: #vgdisplay /dev/vg00 If the volume group is not active, the host will display: # vgdisplay: volume group not activated.
- Page 3 All manuals and user guides at all-guides.com To Determine If the Physical Volume is Attached At the host console, enter: # vgchange -a y <volume group name> 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 All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 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.
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Page 6: To Replace Unattached Physical Volumes
All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 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.
- Page 8 All manuals and user guides at all-guides.com 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 Disks must be Fibre Channel (FC) 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.
- Page 10 Note The LED should be on while the disk spins up and then turn off. The LED will blink with I/O activity to the disk. If you observe different results, further Troubleshooting may need to be carried out. (See Chapter 4 of the HP StorageWorks Disk System 2405 User’ s Guide for troubleshooting procedures.) Procedure Completed!