Cisco Physical Security Multiservices Platform Series User Guide
Recovering from a Hard Drive Failure
Downloads: This chapterpdf (PDF - 173.0KB) The complete bookPDF (PDF - 4.23MB) | Feedback

Recovering from a Hard Drive Failure

Table Of Contents

Recovering from a Hard Drive Failure

Replacing a Hard Drive

Reimaging a Multiservices Platform Series Device that is Running VSM

Reimaging a Multiservices Platform Series Device that is Running Cisco IPICS

Reimaging a Multiservices Platform Series Device that is Running Cisco PAM


Recovering from a Hard Drive Failure


This appendix describes how to recover from a hard drive failure on a Multiservices Platform Series device. The process for doing so depends on the physical security product that you are using and the number of hard drives that are in your Multiservices Platform Series device.

A hard drive that fails on a Multiservices Platform Series device displays a lit red LED on the front panel of its bay. If a hard drive fails, see Table B-1 (for 1-RU models) or Table Table B-2 (for 2-RU models), locate your physical security application and hard drive configuration, then follow the steps in the Recovering column.

When replacing a hard drive, be aware of these guidelines:

A system with RAID-1 or RAID-5 hard drives is fault-tolerant. In these systems, data is preserved if only one drive fails, and you can hot swap a failed hard drive. After hot swapping a drive, it is not necessary to reboot or reimage the system. The system becomes fully operational following drive replacement and after the RAID set goes through an automatic rebuild process. The rebuild process can take several days. If another drive fails before the rebuild process completes, all system data and configuration is lost and the system must be reimaged.

A system with RAID-6 hard drives is fault-tolerant and data is preserved in the following cases:

One hard drive fails

Two hard drives fail at the same time

One hard drive files, then another hard drive fails after the first one has been replaced and while it is rebuilding.

You can hot swap one or two failed hard drives. After hot swapping drives, it is not necessary to reboot or reimage the system. The system becomes fully operational following drive replacement and after the RAID set goes through an automatic rebuild process. The rebuild process can take several days. If you hot swap two drives and a third drive fails before the rebuild process completes, all system data and configuration is lost and the system must be reimaged.

In systems with JBOD-type/RAID-0 hard drives, all data on a hard drive is lost if the drive fails. In this case, you must reimage the system after replacing the drive.

Table B-1 Hard Drive Recovery for Cisco Physical Security Products on a Multiservices Platform Series 1_RU
Model 

Physical Security Application
Hard Drive Configuration
Notes
Recovering

Cisco VSM1

1 hard drive (JBOD-type/ RAID-0)

Provides a single storage repository

Not fault tolerant; if a drive fails, you cannot access the system

Replace the failed drive as described in the "Replacing a Hard Drive" section. Then, Reimage the server as described in the "Reimaging a Multiservices Platform Series Device that is Running VSM" section.

4 hard drives (RAID-5)

Provides an operating system and a single media repository striped across all drives

Fault tolerant; if a single drive fails, the system functions in degraded mode

Drive hot-swapping is supported if a single drive fails

If an additional drive fails before the first drive is replaced and the RAID set rebuilds, data is lost and the system fails

If one drive fails, replace the failed drive as described in the "Replacing a Hard Drive" section.

If multiple drives fail, replace each failed drive as described in the "Replacing a Hard Drive" section. Then, reimage the system as described in the "Reimaging a Multiservices Platform Series Device that is Running VSM" section.

Cisco IPICS2

2 hard drives (RAID-1)

Mirrored configuration; one drive can fail without loss of data

Fault tolerant; if a single drive fails, the system functions in degraded mode

If the second drive fails before the first drive is replaced and the RAID set rebuilds, data is lost and the system fails

If one drive fails, replace the failed drive as described in the "Replacing a Hard Drive" section.

If multiple drives fail, replace each failed drive as described in the "Replacing a Hard Drive" section. Then, reimage the system as described in the "Reimaging a Multiservices Platform Series Device that is Running Cisco IPICS" section.

Cisco PAM3

1 hard drive (JBOD-type/ RAID-0)

Not fault tolerant; if a drive fails, you cannot access the system

Replace the failed drive as described in the "Replacing a Hard Drive" section.Then, reimage the system as described in the "Reimaging a Multiservices Platform Series Device that is Running Cisco PAM" section.

1 Cisco VSM = Cisco Video Surveillance Manager

2 Cisco IPICS = Cisco Interoperability and Collaboration System

3 Cisco PAM = Cisco Physical Access Manager


Table B-2 Hard Drive Recovery for Cisco Physical Security Products on a Multiservices Platform Series 2_RU
Model

Physical Security Application
Hard Drive Configuration
Notes
Recovering

Cisco VSM

6 or 12 hard drives (RAID-6)

Provides an operating system and a single media repository striped across all drives

Fault tolerant; if one or two drives fail, the system functions in degraded mode

Drive hot-swapping is supported if one or two drives fail

If a third drive fails before the first and second drives are replaced and the RAID set rebuilds, data is lost and the system fails

If one or two drives fail, replace the failed drive as described in the "Replacing a Hard Drive" section.

If three or more drives fail, replace each failed drive as described in the "Replacing a Hard Drive" section. Then, reimage the system as described in the "Reimaging a Multiservices Platform Series Device that is Running VSM" section.

Cisco IPICS

6 hard drives (RAID-5)

Fault tolerant; if a single drive fails, the system functions in degraded mode

Drive hot-swapping is supported if a single drive fails

If an additional drive fails before the first drive is replaced and the RAID set rebuilds, data is lost and the system fails

If one drive fails, replace the failed drive as described in the "Replacing a Hard Drive" section.

If multiple drives fail, replace each failed drive as described in the "Replacing a Hard Drive" section. Then, reimage the system as described in the Reimaging a Multiservices Platform Series Device that is Running Cisco IPICS.


Replacing a Hard Drive

To replace a hard drive Multiservices Platform Series device, perform the following steps. In a server with RAID-1 or with RAID-5 and one failed drive, you can hot swap the failed drive. Hot swapping means that you replace a hard drive while the server is running.

Use only Cisco approved hard drives in a Multiservices Platform Series device.

Procedure


Step 1 Take these actions to remove the hard drive from the chassis:

a. Press the release catch on the drive bay.

The drive bay handle extends.

b. Use the drive bay handle to pull the drive out of the chassis.

Step 2 To remove a hard drive from a hard drive bay, see Figure B-1 and take the actions that follow.

Figure B-1 Hard Drive and Hard Drive Bay

1

Drive bay

2

Hard drive

3

Hard drive retaining screws

4

Flat, stable surface


a. Place the hard drive bay on a flat, stable surface such as a desk, table, or workbench.

b. Remove the drive retaining screws and slide the hard drive away from the hard drive bay.

Step 3 To put a new hard drive into a hard drive bay, see Figure B-1 and take these actions:

a. Place the hard drive bay on a flat, stable surface such as a desk, table, or workbench.

b. Slide the hard drive into the hard drive bay.

The printed circuit board side of the hard drive must face down.

c. Align the mounting holes of the hard drive bay with the hard drive.

Make sure that the bottom of the hard drive and the bottom of the hard drive bay are flush.

d. Secure the hard drive retaining screws.

Step 4 Replace the hard drive bay in the chassis by pushing it into the chassis and pressing the drive bay handle to lock it in place.


Reimaging a Multiservices Platform Series Device that is Running VSM

Reimaging a Multiservices Platform Series Device that is Running VSM involves reconfiguring RAID to make replacement hard drives visible to the server and resetting the server to the factory defaults. Before reimaging a system, replace all failed hard drives.


Caution This procedure is intended to recover a server from a catastrophic failure. Before you perform these steps, see Table B-1 to make sure that this procedure is appropriate for your situation.

To reimage a server, perform the following steps:

Procedure


Step 1 After replacing failed drives as described in the "Replacing a Hard Drive" section, reboot the server and, as soon as the server starts booting, press Ctrl-M to access the RAID configuration tool.

Step 2 Choose Configure and press Enter.

Step 3 Choose New Configuration and press Enter.

Step 4 Choose Yes and press Enter to display the ports and drives.

Step 5 Choose Port 0 and press Spacebar to convert to ONLIN A00-00.

Step 6 Press F10 to configure.

Step 7 Press Spacebar to choose SPAN-1.

Step 8 Press F10 to continue.

Step 9 Specify the following settings:

RAID = 0

Size = 12288

Step 10 Choose Accept and press Enter to create VD0.

Step 11 Choose Accept and press Enter to create VD1.

Step 12 Press Esc to leave configuration mode and Yes to save the configuration.

Step 13 Press Esc again.

Step 14 For each additional drive:

a. Select the next port and press Spacebar to change to ONLIN A0N-00, where N is the next drive.

b. Press F10 to configure.

c. Press Spacebar to choose SPAN-1.

d. Press F10 to continue.

e. Specify RAID = 0.

f. Choose Accept and press Enter.

g. Press Esc to leave configuration mode and Yes to save the configuration.

h. Press Esc again.

Step 15 Press Esc to return to the Management menu.

Step 16 Press Esc to exit and Yes to confirm.

Step 17 Insert the recovery disc for your release of VSM and press Ctrl-Alt-Del to reboot.

Step 18 At the boot prompt, enter factory and press Enter.

The operating system and VSM software installs. This process takes approximately 20 minutes. Progress messages provide information about the installation. When the process completes, the disk ejects, and a login screen appears.


Reimaging a Multiservices Platform Series Device that is Running Cisco IPICS

Reimaging a Multiservices Platform Series Device that is running Cisco IPICS involves reconfiguring RAID to make replacement hard drives visible to a server and resetting the server to the factory defaults. Before reimaging a system, replace all failed hard drives.


Caution This procedure is intended to recover a server from a catastrophic failure. Before you perform these steps, see Table B-1 or Table B-2 to make sure that this procedure is appropriate for your situation.

To reimage a server, perform the following steps:

Procedure


Step 1 After replacing failed drives as described in the "Replacing a Hard Drive" section, reboot the server and, as soon as the server starts booting, press Ctrl-M to access the RAID configuration tool.

Step 2 Choose Configure and press Enter.

Step 3 Choose New Configuration and press Enter.

Step 4 Choose Yes and press Enter to display the ports and drives.

Step 5 Choose Port 0 and press Spacebar to convert to ONLIN A00-00.

Step 6 Press F10 to configure.

Step 7 Press Spacebar to choose SPAN-1.

Step 8 Press F10 to continue.

Step 9 Specify the following settings:

RAID = 0

Size = 12288

Step 10 Choose Accept and press Enter to create VD0.

Step 11 Choose Accept and press Enter to create VD1.

Step 12 Press Esc to leave configuration mode and Yes to save the configuration.

Step 13 Press Esc again.

Step 14 For each additional drive:

a. Select the next port and press Spacebar to change to ONLIN A0N-00, where N is the next drive.

b. Press F10 to configure.

c. Press Spacebar to choose SPAN-1.

d. Press F10 to continue.

e. Specify RAID = 0.

f. Choose Accept and press Enter.

g. Press Esc to leave configuration mode and Yes to save the configuration.

h. Press Esc again.

Step 15 Press Esc to return to the Management menu.

Step 16 Press Esc to exit and Yes to confirm.

Step 17 Insert the operating system disc for your release of Cisco IPICS and press Ctrl-Alt-Del to reboot


Note If you are using the 1-RU Multiservices Platform Series model, you need to attach a USB DVD drive.

When the system reboots, the operating system installation process begins. See Cisco IPICS Server Installation and Upgrade Guide Release for your release of Cisco IPICS for detailed information about installing the operating system.


Reimaging a Multiservices Platform Series Device that is Running Cisco PAM

Reimaging a Multiservices Platform Series Device that is running Cisco PAM involves reconfiguring RAID to make replacement hard drives visible to a server and resetting the server to the factory defaults. Before reimaging a server, replace the failed hard drive.

To reimage a server, see the "Reinstalling the Cisco PAM Server Software from a Recovery CD" section in Cisco Physical Access Manager User Guide for your release of Cisco PAM.