gc26777401
IBM System Storage
DS4800 Controller Cache
Upgrade Kit Instructions
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Attention: IBM® has renamed some FAStT family products. FAStT EXP100 has been renamed DS4000
EXP100, FAStT EXP700 has been renamed DS4000 EXP700, and FAStT EXP710 has been renamed DS4000
EXP710. Note that this change of product name only indicates no change in functionality or warranty. All
products with new names are functionally-equivalent and fully-interoperable. Each DS4000 product
retains full IBM service as outlined in service contracts issued for analogous FAStT products.
Getting started
The IBM System Storage™ DS4800 Controller Cache Upgrade Kit enables you to upgrade the DS4800
controller memory cache either in the DS4800 storage subsystem models 82A/H to 4 GB of memory
cache per controller or in the DS4800 storage subsystem models 82A/H and 84A/H to 8 GB of cache
memory per controller. There are three DS4800 controller cache upgrade options that are available from
IBM:
v DS4800 Model 82A/H Cache upgrade to 8 GB. This option upgrades the DS4800 controllers with 2 GB
of cache memory per controller to DS4800 controllers with 4 GB of cache memory per controller.
v DS4800 Model 82A/H Cache upgrade to 16 GB. This option upgrades the DS4800 controllers with 2
GB of cache memory per controller to DS4800 controllers with 8 GB of cache memory per controller.
v DS4800 Model 84A/H Cache upgrade to 16 GB. This option upgrades the DS4800 controllers with 4
GB of cache memory per controller to DS4800 controllers with 8 GB of cache memory per controller.
Important:
v The machine type and model for the DS4800 are printed on the product label affixed to the DS4800
storage subsystem chassis. As a result, the label that identifies this information does not change when
you perform a DS4800 controller upgrade. However, after you upgrade the controller cache, the DS4800
storage subsystem functions as and is treated as the DS4800 model with the cache memory to which
you have upgraded. If you perform a future controller replacement, ensure that you identify the correct
controller part number for your DS4800 and mention that you have previously upgraded the DS4800
storage subsystem controllers.
v Whenever you add options to your DS4800 storage subsystem, be sure to update the MAC information
in Appendix A of the DS4800 Installation, User’s, and Maintenance Guide.
Attention: Do not dispose of the DS4800 controller CRUs that you replace with the controller CRUs in
this upgrade kit. If separate return processing instructions for the DS4800 controller CRUs you replace are
included with this upgrade kit, follow the instructions to return the replaced controllers.
The DS4800 Model 82A/H Cache upgrade to 8 GB Upgrade Kit contains the following:
v Two controllers with 4 GB of cache per controller (Part Number: 22R4269)
v DS4800 Controller Cache Upgrade Kit Instructions
v DS4800 Controller Label Kit and Installation Instructions
The DS4800 Model 82A/H Cache upgrade to 16 GB and the DS4800 Model 84A/H Cache upgrade to 16
GB Upgrade Kit contain the following:
v Two controllers with 8 GB of cache per controller (Part Number: 39M5873)
v DS4800 Controller Cache Upgrade Kit Instructions
v DS4800 Controller Label Kit and Installation Instructions
Upgrade preparations requirements
Before you upgrade the controller cache in your existing DS4800 storage subsystems, perform the
following steps:
1. Save the DS4800 storage subsystem profile. Store the profile in a different location than the disks
that are attached to the DS4800 storage subsystem to be upgraded. Also, save the configuration
of the setup, including the topology and logical drives to logical unit number (LUN) mapping.
Refer to the online help in the Subsystem Management window for instructions on how to save
the subsystem profile and configuration information.
2. Perform a full system backup.
3. Upgrade the DS4000 drive expansion enclosure ESM firmware version of the existing DS4000
drive expansion enclosures to the latest levels that are posted on the DS4000 System Storage
Disk Support Web site:
www.ibm.com/servers/storage/support/disk/
You must perform the drive expansion enclosure ESM firmware version upgrade before you
upgrade the controller firmware in the following step.
4. Upgrade the DS4000 Storage Manager client host software to DS4000 Storage Manager version
9.15 or later and the DS4800 storage subsystem controller firmware to version 06.15.xx.xx or
higher.
5. Verify that both of the DS4800 storage subsystem power supply fan units are plugged in,
powered on, and in optimal state. Use the DS4000 Storage Manager client host software to verify
that the DS4800 storage subsystem is in optimal state. (This step is not required for cold
upgrades.)
6. If the DS4800 host ports are connected to a FC switch, use the switch monitor tool to make sure
that the DS4800 host ports and the server FC host bus adapter (HBA) ports are operating
optimally. No unexpected port log-out and log-in events should be reported. If there are any,
make sure that the cause or causes of these events are corrected before starting the DS4800
controller cache upgrade. (This step is not required for cold upgrades.)
7. Verify that the premium feature keys are available. Also, locate all premium feature and
entitlement proofs of purchase and ensure that they can be accessed when needed.
8. Have the DS4800 Installation, User’s, and Maintenance Guide available for reference. This upgrade
procedure may refer to specific sections in the DS4800 Installation, User’s, and Maintenance Guide.
A hard copy of this guide was included in the original DS4800 shipment. The guide is also
available in PDF format on the DS4000 System Storage Disk Support Web site:
www.ibm.com/servers/storage/support/disk/
9. If you use out-of-band (direct) management and assign IP addresses to the DS4800 controllers
using Dynamic Host Configuration Protocol (DHCP) based on the DS4800 controller MAC
addresses, you must upgrade your DHCP server with the new MAC addresses for the
replacement DS4800 controllers in the upgrade kit.
Two upgrade methods are possible when you perform the DS4800 controller cache upgrade:
“Hot-case upgrade procedure” on page 3 — The DS4800 storage subsystem remains powered on and
receives I/Os during the controller cache upgrade. Because the DS4800 storage server controllers will
be swapped during the upgrade, you should schedule the upgrade during a non-peak I/O (low-usage)
period. Use the DS4800 Storage Manager performance monitor function to determine the non-peak I/O
load time if required.
v “Cold-case upgrade procedure” on page 7 — The DS4800 storage subsystem is powered down when
controllers are upgraded.
v
Note: The cold-case controller upgrade procedure is recommended if your production environment
allows the scheduling of downtime for maintenance purposes.
2
Hot-case upgrade procedure
To perform a hot-case upgrade, do the following steps.
1. Perform all of the prerequisite tasks. See “Upgrade preparations requirements” on page 2.
2. Make sure that both power supply-fan CRUs are plugged-in, powered on, and optimal. Verify the
status of the power supply-fan CRUs status using the LEDs on the CRUs and the DS4800 Subsystem
Management window in the DS4000 Storage Manager client program. Make sure that there are not
any Needs Attention LEDs lit and the status of the DS4800 storage subsystem is displayed as
Optimal in the DS4800 Subsystem Management window.
Important Do not proceed with the upgrade procedure if both power supply-fan CRUs are not
optimal. Consider using the cold-case upgrade procedure if this is the case.
3. Upgrade the DS4800 storage subsystem controller firmware and NVSRAM with the latest version
from the DS4000 System Storage Support Web site:
www.ibm.com/servers/storage/support/disk/
Check the readme file for any prerequisites that need to be performed—such as whether a certain
version of ESM firmware or hard drive firmware is required—before applying the firmware and
NVSRAM upgrade.
4. In the DS4800 Subsystem Management window, place controller B to Offline state. Wait a few
minutes and verify the Needs Attention and the Service Action Allowed LEDs on the controller B
CRU are lit. If the Service Action Allowed LED is not lit, it means that there is another component
failure in the DS4800 storage subsystem and removing the controller B CRU from the DS4800 chassis
might cause the DS4800 to be powered down. Use the Recovery Guru menu icon in the DS4800
Subsystem Management window to correct any errors or faults before proceeding to the next step.
Call IBM Support if needed.
5. Put on antistatic protection.
6. Disconnect all attached interface cables from controller B (bottom controller), including the SFP
modules. Ensure that you label all cables so that you can reconnect them correctly to the new
controller. Figure 1 shows the location of the connectors on the back of a controller.
Strain-relief
clamp
DC
power
AC
power
Dual-ported
drive channels
Ethernet ports
RS-232
serial port
Controller A
Host channels
Host channels
Controller B
ds48015
RS-232
serial port
Ethernet ports
Dual-ported
drive channels
AC
power DC
power
Strain-relief
clamp
Figure 1. Controller connections
7. Use the following procedure to remove the SFPs:
3
Statement 3:
CAUTION:
When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or transmitters) are
installed, note the following:
v Do not remove the covers. Removing the covers of the laser product could result in exposure to
hazardous laser radiation. There are no serviceable parts inside the device.
v Use of controls or adjustments or performance of procedures other than those specified herein
might result in hazardous radiation exposure.
DANGER
Some laser products contain an embedded Class 3A or Class 3B laser diode. Note the
following.
Laser radiation when open. Do not stare into the beam, do not view directly with optical
instruments, and avoid direct exposure to the beam.
a. Remove the LC-LC fibre channel cable from the SFP module.
b. Unlock the SFP module latch:
v For SFP modules that contain plastic tabs, unlock the SFP module latch by pulling the plastic
tab outward 10°, as shown in Figure 2.
Plastic tab
Protective cap
10 o
SFP module
F10ug009
Figure 2. Unlocking the SFP module latch - plastic variety
v For SFP modules that contain wire tabs, unlock the SFP module latch by pulling the wire latch
outward 90°, as shown in Figure 3 on page 5.
4
Wire tab
Protective cap
o
90
F10ug010
SFP module
Figure 3. Unlocking the SFP module latch - wire variety
c.
With the SFP latch in the unlocked position, extract the SFP module.
v For SFP modules that contain plastic tabs, slide the SFP module out of the port.
v For SFP modules that contain wire tabs, grasp the wire latch and pull the SFP module out of
the port.
d. Replace the protective cap on the SFP module.
e. Place the SFP module into a static-protective package.
f. Replace the protective cap on the port.
8. Remove the strain-relief nut and cable strain-relief clamp from the RAID controller.
9. Unplug the power cord from the electrical outlet and then disconnect the power cord from the AC
power connector on controller B (bottom controller).
10. Release the controller levers and remove controller B (bottom controller) from the DS4800 chassis.
Figure 4 shows the controller sliding from the storage subsystem chassis. Refer to “Releasing a
component lever” in the DS4800 Installation, User’s, and Maintenance Guide for more information on
unlatching and removing the controller from the DS4800 chassis.
Levers in released
position
ds48045
Latches
RAID controllers
Figure 4. Removing a controller from the DS4800
11. Unpack the new controller. Save all packing materials in the event you need to return the replaced
controller.
12. Using the provided label placement instructions and the controller label kit, apply the controller
labels for host channels, drive channels, power inputs, and numeric display to the replacement
5
controller. Make sure that you use the correct labels for the controller that you replaced. (Note that
controller A is the top controller, controller B is the bottom controller). Ensure the labels are aligned
properly and do not cover any ports or LEDs.
13. Install the new DS4800 controller in the storage subsystem.
a. Carefully position the controller at the back of the storage subsystem chassis. Ensure that the
controller can slide into the storage subsystem chassis without obstruction.
b. With the left and right levers rotated out perpendicular to the face of the controller, slide the back
of the controller into the appropriate slot.
c. Push on both sides of the controller so that it slides into the slot evenly. Stop inserting the
controller when it is about 1 inch from being fully inserted into the slot. With the controller not
fully inserted in the slot, attach all the SFPs and cables that you disconnected from the controller
in step 6 on page 3.
1) Replace the SFPs into the appropriate ports. See “Installing SFP modules” in the DS4800
Installation, User’s, and Maintenance Guide.
2) Reconnect all cables, including all host and drive channel cables and secondary cables (such
as Ethernet connections).
d. Holding both levers, slowly push the controller until the notches in both the left and right levers
are aligned with the pins on the DS4800 enclosure so that the controller is pulled evenly into the
DS4800 storage subsystem chassis, ensuring full electrical connection contact on all interface pins.
Attention: Verify that the controller does not snag any other DS4800 cables when you slide it
into the controller bay.
e. Press the controller fully into the slot, engaging the pins on the enclosure.
f. Hold open both latches and push both left and right levers simultaneously to the closed position.
Release the latches. When you release the latches, you should hear both latches snap over the
levers, indicating that the component is locked in place.
14. Wrap the strain-relief clamp around the power cord approximately 20 cm (8 in.) from the controller
connection end. Leave some slack between the clamp and the controller end of the power cord.
Replace the strain-relief nut and tighten it securely to secure the clamp to the controller.
15. If you use out-of-band (direct) management and assign IP addresses to the DS4800 controllers using
Dynamic Host Configuration Protocol (DHCP) based on the DS4800 controller MAC addresses, you
must upgrade your DHCP server with the new MAC addresses for the replacement DS4800
controllers in the upgrade kit. You can find the MAC addresses on the controller near the Ethernet
ports. Figure 5 shows the location of the MAC address labels.
MAC address label (Controller A)
666666666666666666666666666666
666666666666666666666666666666
666666666666666666666666666666
ds48059
666666666666666666666666666666
666666666666666666666666666666
666666666666666666666666666666
666666666666666666666666666666
666666666666666666666666666666
MAC address label (Controller B)
Figure 5. MAC address labels on DS4800 RAID controllers
Make sure that the DHCP record changes are in effect.
16. Connect the power cord to the bottom controller AC power connector. Plug the power cord into a
properly grounded electrical outlet. Flip the power switch to the on position if required.
6
17. The newly inserted controller will be in offline state with the controller Needs Attention and Service
Action Allowed LEDs lit. Refer to the DS4000 Storage Manager client program online help for
instructions on bringing the controller online. For example, in the DS4000 Storage Manager client
Subsystem Management Window, select the offline controller and click Advanced > Recovery >
Place controller online.
18. Wait up to 10 minutes for the DS4800 controller to be online and the DS4000 Storage Manager client
software to recognize the new controller. (The amount of time it takes depends on the number of
drives in the configuration, the I/O loads to the DS4800 subsystem, and whether the new controller’s
firmware and NVSRAM are automatically synchronized with old controller’s firmware and
NVSRAM.)
19. Verify the state of the LEDs on the newly inserted controller. See ″RAID controller LEDs″ in the
DS4800 Installation, User’s, and Maintenance Guide. Also verify the LEDs status of the power
supply-fans CRUs. There should be no Needs Attention LEDs lit. The Batteries Charging LEDs will
be flashing. Make sure that the Needs Attention and Service Action Allowed LEDs on the controller
are not lit, and the new controller numeric display LEDs display the same numeric value (DS4800
enclosure ID) as the existing (old) controller numeric display LEDs. This value is normally set to 85
unless it has been changed.
20. Use the DS4000 Storage Manager client Subsystem Management Window to check the status of all
components in the storage subsystem.
v If the new controller is online and the DS4000 Storage Manager client Subsystem Management
Window indicates normal operation, go to step 23.
Important: Do not go to step 23 if the new controller is not online.
v If the new controllers are online and the DS4000 Storage Manager client Subsystem Management
Window indicates a problem status, go to “Troubleshooting the storage subsystem” in the DS4800
Installation, User’s, and Maintenance Guide.
v If the new controller is offline, go to step 17. If the problem persists, call IBM Support for
assistance.
21. If the fibre channel (FC) switch zoning is configured with the DS4800 controller WWNN, make
modifications to FC switch zone tables to reflect the WWNN of the new controller before they can be
seen by the fibre channel host bus adapters (HBAs) in the host servers. Ensure that the new FC
switch zone tables are activated before proceeding to step 22.
22. Use the DS4000 Storage Manager client Subsystem Management Window to perform Logical Drives
Redistributing. If the logical drives do not redistribute between the controllers, do not proceed with
controller A replacement. Determine why the logical drives did not redistribute. For example, this
might include verifying that controller B is online and optimal, verifying fibre channel cabling
between the host servers and controller B are connected, and verifying fibre channel switch zoning is
updated. Contact IBM Support if necessary.
23. Wait approximately 5 minutes after the successful completion of the logical drives redistributing and
repeat steps 4 on page 3 through 22 to upgrade controller A (top controller).
Important: Do not perform this step if controller B is not in optimal state and step 22 was not
completed successfully. Otherwise, loss of data access might occur.
24. Remove the antistatic protection.
25. Use the DS4000 Storage Manager client software to print a new storage subsystem profile.
Cold-case upgrade procedure
To perform a cold-case upgrade, do the following steps.
1. Perform all of the prerequisite tasks. See “Upgrade preparations requirements” on page 2.
2. Schedule downtime for the upgrade.
3. Power down the DS4800 configurations using the instructions in the “Turning off the storage
subsystem” section in the DS4800 Installation, User’s, and Maintenance Guide.
4. Put on antistatic protection.
7
5. Disconnect all attached interface cables from controller A (top controller), including the SFP modules.
Ensure that you label all cables so that you can reconnect them correctly to the new controller.
Figure 6 shows the location of the connectors on the back of a controller.
Strain-relief
clamp
DC
power
AC
power
Dual-ported
drive channels
Ethernet ports
RS-232
serial port
Controller A
Host channels
Host channels
Controller B
ds48015
RS-232
serial port
Ethernet ports
Dual-ported
drive channels
AC
power DC
power
Strain-relief
clamp
Figure 6. Controller connections
6. Use the following procedure to remove the SFPs:
Statement 3:
CAUTION:
When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or transmitters) are
installed, note the following:
v Do not remove the covers. Removing the covers of the laser product could result in exposure to
hazardous laser radiation. There are no serviceable parts inside the device.
v Use of controls or adjustments or performance of procedures other than those specified herein
might result in hazardous radiation exposure.
DANGER
Some laser products contain an embedded Class 3A or Class 3B laser diode. Note the
following.
Laser radiation when open. Do not stare into the beam, do not view directly with optical
instruments, and avoid direct exposure to the beam.
a. Remove the LC-LC fibre channel cable from the SFP module.
8
b. Unlock the SFP module latch:
v For SFP modules that contain plastic tabs, unlock the SFP module latch by pulling the plastic
tab outward 10°, as shown in Figure 7.
Plastic tab
Protective cap
10 o
SFP module
F10ug009
Figure 7. Unlocking the SFP module latch - plastic variety
v For SFP modules that contain wire tabs, unlock the SFP module latch by pulling the wire latch
outward 90°, as shown in Figure 8.
Wire tab
Protective cap
o
90
F10ug010
SFP module
Figure 8. Unlocking the SFP module latch - wire variety
With the SFP latch in the unlocked position, extract the SFP module.
v For SFP modules that contain plastic tabs, slide the SFP module out of the port.
v For SFP modules that contain wire tabs, grasp the wire latch and pull the SFP module out of
the port.
d. Replace the protective cap on the SFP module.
e. Place the SFP module into a static-protective package.
f. Replace the protective cap on the port.
7. Remove the strain-relief nut and cable strain-relief clamp from the RAID controller.
8. Unplug the power cord from the electrical outlet and then disconnect the power cord from the AC
power connector on the top controller.
9. Release the controller levers and remove the top controller (controller A) from the DS4800 chassis.
Figure 9 on page 10 shows the controller sliding from the storage subsystem chassis. Refer to
“Releasing a component lever” section in the DS4800 Installation, User’s, and Maintenance Guide for
more information on unlatching and removing the controller from the DS4800 chassis.
c.
9
Levers in released
position
ds48045
Latches
RAID controllers
Figure 9. Removing a controller from the DS4800
10. Unpack the new controller. Save all packing materials in the event you need to return the replaced
controller.
11. Using the provided label placement instructions and the controller label kit, apply the controller
labels for host channels, drive channels, power inputs, and numeric display to the replacement
controller. Make sure that you use the correct labels for the controller that you replaced. (Note that
controller A is the top controller and controller B is the bottom controller). Ensure the labels are
aligned properly and do not cover any ports or LEDs.
12. Install the new DS4800 controller in the chassis.
a. Carefully position the controller at the back of the storage subsystem chassis. Ensure that the
controller can slide into the storage subsystem chassis without obstruction.
b. With the left and right levers rotated out perpendicular to the face of the controller, slide the back
of the controller into the appropriate slot.
c. Push on both sides of the controller so that it slides into the slot evenly. Stop inserting the
controller when it is about 1 inch from being fully inserted into the slot. With the controller not
fully inserted in the slot, attach all the SFPs and cables that you disconnected from the failed
controller in step 5 on page 8.
1) Replace the SFPs into the appropriate ports. See “Installing SFP modules” in the DS4800
Installation, User’s, and Maintenance Guide.
2) Reconnect all cables, including all host and drive channel cables and secondary cables (such
as Ethernet connections).
d. Holding both levers, slowly push the controller until the notches in both the left and right levers
are aligned with the pins on the DS4800 enclosure so that the controller is pulled evenly into the
DS4800 storage subsystem chassis, ensuring full electrical connection contact on all interface pins.
Attention: Verify that the controller does not snag any other DS4800 cables when you slide it
into the controller bay.
e. Press the controller fully into the slot, engaging the pins on the enclosure.
f. Hold open both latches and push both left and right levers simultaneously to the closed position.
Release the latches. When you release the latches, you should hear both latches snap over the
levers, indicating that the component is locked in place.
10
13. Wrap the strain-relief clamp around the power cord approximately 20 cm (8 in.) from the controller
connection end. Leave some slack between the clamp and the controller end of the power cord.
Replace the strain-relief nut and tighten it securely to secure the clamp to the controller.
14. Connect the power cord to controller A (top controller) AC power connector. Plug the power cord
into a properly grounded electrical outlet. Do not turn the power switch to the on position yet.
15. Repeat steps 4 on page 7 through 14 for the upgrading the bottom controller (controller B).
16. If you use out-of-band (direct) management and assign IP addresses to the DS4800 controllers using
Dynamic Host Configuration Protocol (DHCP) based on the DS4800 controller MAC addresses, you
must upgrade your DHCP server with the new MAC addresses for the replacement DS4800
controllers in the upgrade kit. You can find the MAC addresses on the controller near the Ethernet
ports. Figure 10 shows the location of the MAC address labels.
MAC address label (Controller A)
666666666666666666666666666666
666666666666666666666666666666
666666666666666666666666666666
ds48059
666666666666666666666666666666
666666666666666666666666666666
666666666666666666666666666666
666666666666666666666666666666
666666666666666666666666666666
MAC address label (Controller B)
Figure 10. MAC address labels on DS4800 RAID controllers
17.
18.
19.
20.
21.
Make sure that the DHCP record changes are in effect.
Follow the instructions in “Turning on the storage subsystem” in the DS4800 Installation, User’s, and
Maintenance Guide to apply power to the DS4800 storage subsystem configuration.
Important: Do not power on the DS4800 storage subsystem until all of the drive expansion
enclosures are properly reconnected to the DS4800 controller drive ports, powered on, and do not
have any controller Needs Attention LEDs lit or the port bypass LEDs of the controller ports that are
part of the drive expansion enclosures connections are not lit.
Remove the antistatic protection.
Wait up to 10 minutes for the DS4000 Storage Manager client software to recognize the new
controller, depending on the number of drives and enclosures in the configuration and the work load
in the management network. Complete any remaining Recovery Guru procedures for controller
replacement, if needed.
Check the LEDs on the new controllers to verify that the controllers are fully operational. See ″RAID
controller LEDs″ in the DS4800 Installation, User’s, and Maintenance Guide.
Use the DS4000 Storage Manager client Subsystem Management Window to check the status of all
components in the storage subsystem.
v If the new controller is online and the DS4000 Storage Manager client Subsystem Management
Window indicates normal operation, use the DS4000 Storage Manager client software to print a
new storage subsystem profile. Go to step 23 on page 12.
v If the new controllers are online and the DS4000 Storage Manager client Subsystem Management
Window indicates a problem status, go to “Troubleshooting the storage subsystem” in the DS4800
Installation, User’s, and Maintenance Guide. After resolved, go to step 23 on page 12.
v If the new controller is offline, go to step 22.
22. If any of the newly inserted controllers is in an offline state, see the DS4000 Storage Manager client
program online help for instructions on bringing the controller online. If necessary, open the DS4000
Storage Manager Subsystem Management window and place the controller online; select the offline
11
23.
24.
25.
26.
12
controller and click Advanced > Recovery > Place controller online. Perform steps 18 on page 11
and 19 on page 11 to verify the status of the replaced controller. If the controller can not be placed
Online, call IBM Support for assistance.
If necessary, use the saved premium feature keys to reactivate all of your premium features. The
status of the premium features might be shown as Out-of-Compliance until they are reactivated.
Upgrade the DS4800 storage subsystem controller firmware and NVSRAM with the latest version
from the DS4000 System Storage Support Web site:
www.ibm.com/servers/storage/support/disk/
Check the readme file for any prerequisites that need to be performed—such as whether a certain
version of ESM firmware or hard drive firmware is required—before applying the firmware and
NVSRAM upgrade.
Use the DS4000 Storage Manager client software to print a new storage subsystem profile.
If the fibre channel switch zoning is configured with the DS4800 controller WWNNs, make
modifications to switch zoning tables to reflect the WWNNs of the new controllers before they can
be seen by the fibre channel host bus adapters (HBAs) in the host servers.
Trademarks
IBM, the IBM logo, and System Storage are trademarks of International Business Machines Corporation in
the United States, other countries, or both.
Other company, product, or service names may be trademarks or service marks of others.
Second edition (November 2006)
© Copyright International Business Machines Corporation 2005, 2006. All rights reserved.
US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.
GC26-7774-01
(1P) P/N: 22R6615
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