HP Proliant Dl580 Generation 5 User Guide

							
 
Hardware options  installation 41 
5  X X X X X 
   
6  X X X X X X   
7  X X X X X X X  
8  X X X X X X X X   
Online spare memory configuration 
Online spare memory provides prot
ection against degrading FBDIMMs  by reducing the likelihood of 
uncorrectable memory errors. This protection is  available without any operating system support. 
An understanding of single-rank and dual-rank FBDIM Ms is required to understand memory usage in 
online spare mode. FBDIMMs can either be single -rank or dual-rank. Certain FBDIMM configuration 
requirements are based on these classifications. A du al-rank FBDIMM is similar to having two single-rank 
FBDIMMs on the same module. Although only a sing le FBDIMM module, a dual-rank FBDIMM acts as two 
separate FBDIMMs. The purpose of dual-rank FBDIMMs  is to provide the largest capacity FBDIMM for the 
current DRAM technology. If the cu rrent DRAM technology allows for 2-GB single-rank FBDIMMs, a dual-
rank FBDIMM using the same technology would be 4-GB. 
In online spare mode, a single ra nk of memory acts as the spare memory. For single-rank FBDIMMs, the 
entire FBDIMM acts as the spare  memory. For a dual-rank FBDIMM, only half of the FBDIMM acts as the 
spare memory while the other half is availabl e for operating system and application usage. 
If one of the non-spare FBDIMMs receives correctable  memory errors at a higher rate than a specific 
threshold, the server automatically copies the memory  contents of the degraded rank to the online spare 
rank. The server then deactivates the failing rank an d automatically switches over to the online spare. 
Because FBDIMMs that experience a high rate of  correctable memory errors also have a higher 
probability of receiving an uncorrectable memory e rror, this configuration reduces the likelihood of 
uncorrectable memory errors that  would result in server downtime. 
Online spare is performed per bran ch of the memory controller. For a server with both branches 
populated, two ranks are used for online spare memo ry. One branch can fail over to the associated 
online spare while the other  branch is still protected. 
Each branch is comprised of four banks: 
•  Branch 0 contains banks A, C, E, and G 
• Branch 1 contains banks B, D, F, and H 
Online spare FBDIMM configuration requirements (in addition to general configuration requirements): 
•  When only bank A is being used, it must  be fully populated with dual-rank FBDIMMs. 
• If banks on different branches are used , the banks must be fully populated. 
Online spare memory supports the  following FBDIMM configurations: 
         
Configuration Bank A 
1A/5A Bank B 
9B/13B Bank C 
2C/6C Bank D 
10D/14D  Bank E 
3E/7E Bank F 
11F/15F Bank G 
4G/8G Bank H 
12H/16H 
1* X        
2 X X       
3  X X X X     
4  X X X X  X  X    
						

							
 
Hardware options  installation 42 
Configuration Bank A 
1A/5A Bank B 
9B/13B Bank C 
2C/6C Bank D 
10D/14D  Bank E 
3E/7E Bank F 
11F/15F Bank G 
4G/8G Bank H 
12H/16H 
5  X X X X X X X X  
* Configuration 1 is only supported if ban
k A is populated with dual-rank FBDIMMs. 
After installing FBDIMMs, use RBSU to configure the system for online spare memory support 
(Configuring online spare memory  on page 66). 
 
Mirrored memory configuration 
Mirroring provides protection agains t uncorrectable memory errors that would otherwise result in server 
downtime. 
Mirroring is performed on the branch level.  Branch 0 and branch 1 mirror each other. 
Each branch maintains a copy of all memory contents. Memory  writes go to both branches. Memory 
reads  come from only one of the two branches (unless  an uncorrectable error occurs). If a memory read 
on one branch returns incorrect data due to an unco rrectable memory error, the system automatically 
retrieves the proper data from the other branch. A  branch is not necessarily disabled (thus losing 
mirroring protection) because of a si ngle uncorrectable error. Mirroring protection is not lost because of 
transient and soft uncorrectable errors, resulting in sy stems that maintain mirroring protection (and thus 
improved uptime) unless there is  a failure of both branches. 
Mirrored memory FBDIMM configuration requiremen ts (in addition to the general configuration 
requirements): 
•  Banks A and B must be fully populated at a minimum. 
Mirrored memory supports the following FBDIMM configurations: 
         
Configuration Bank A  1A/5A Bank B 
9B/13B  Bank C 
2C/6C Bank D 
10D/14D  Bank E 
3E/7E Bank F 
11F/15F Bank G 
4G/8G Bank H 
12H/16H 
1 X X       
2  X X  X X     
3  X X X X X X   
4  X X X X X X X X  
After installing FBDIMMs, use RBSU to configure the system for mirrored memory support (
Configuring 
mirrored memory  on page 67). 
 
Installing FBDIMMs 
1. Power down the server (on page  21). 
2. Remove the processor memory module, and open the cover ( Removing the processor memory 
module  on page  33). 
3. Open the FBDIMM slot latches.  
						

							
 
Hardware options  installation 43 
4.
 
Install the FBDIMM. 
 
5. If you are installing FBDIMMs  in an online spare or mirrored configuration, use RBSU ( HP ROM-
Based Setup Utility  on page 66) to configure this feature. 
 
Installing optional memory expansion boards 
Installing optional memory expansion boards increase s the number of FBDIMM slots in the server to 32. 
Use the following guidelines when installing the memory expansion boards: 
•  Install memory expansion boards in pairs.  
o  Memory expansion boards 1 and 2 
o Memory expansion boards 3 and 4 
• Install memory expansion boards sequenti ally beginning with boards 1 and 2. 
• Populate memory expansion boards sequentially,  beginning with bank A on boards 1 and 2 and 
proceeding to bank A on boards 3 and 4. 
To install the optional memory expansion boards: 
1.  Power down the server (on page  21). 
2. Remove the processor memory module, and open the cover ( Removing the processor memory 
module  on page  33). 
3. Install FBDIMMs on the memory expansion boards. 
4. Install the memory expansion boards.  
						

							
 
Hardware options  installation 44 
  
5. If you are installing FBDIMMs  in an online spare or mirrored configuration, use RBSU ( HP ROM-
Based Setup Utility  on page 66) to configure this feature. 
 
Hot-plug SAS hard drive options 
When adding hard drives to the server, ob serve the following general guidelines:  
• The system automatically sets all device numbers. 
• If only one hard drive is used, install it in the bay with the lowest device number. 
• Hard drives must be SFF types. 
• Drives should be the same capacity to provide the  greatest storage space efficiency when drives are 
grouped together into the same drive array. 
 
Installing a hot-plug SAS hard drive 
1.  Remove the hard drive blank.  
						

							
 
Hardware options  installation 45 
2.
 
Prepare the SAS hard drive. 
 
3. Install the hard drive into the server. 
 
4. Determine the status of the hard drive from th e hot-plug SAS hard drive LED combinations ( SAS 
hard drive LED combinations  on page 17).  
 
Installing the drive cage l  
  CAUTION:
  To prevent improper cooling and therma l damage, do not operate the server unless 
all bays are populated with either a component or a blank. 
  
1.  Power down the server (on page  21). 
2. Extend the server from the rack ( Extending the server from the rack  on page 21). 
3. Remove the access panel ( Removing the access panel on page 23).  
						

							
 
Hardware options  installation 46 
4.
 
Remove the blank. 
 
5. Adhere the label to the bezel  below the optional drive cage. 
  
						

							
 
Hardware options  installation 47 
6.
 
Loosen the thumbscrews, and remove the center bracket. 
 
7. Loosen the thumbscrews, and  remove the side bracket. 
 
8. Install the SAS controller. See the directions provided  with the controller for installation instructions. 
9. Slide the plastic retainer to the front of the server.  
						

							
 
Hardware options  installation 48 
10.
 
Install the hard drive backplane. 
 
11. Route and connect the data cables from the backplane to the optional controller. 
12. Route and connect the power cord. 
a. Lift the data cables connected to the standard backplane. 
b. Route the power cord under the data cables along the server wall. 
c. Connect the power cord to the power backplane. 
d.  Return the data cables to their original position. 
 
13.  Replace the side bracket.  
						

							
 
Hardware options  installation 49 
14.
 
Replace the center bracket. 
15. Install hard drives or hard drive blanks into each bay. 
16. Replace the access panel ( Removing the access panel on page 23).  
17.  Slide the server into the rack.  
Tape drive l  
  CAUTION:
  To prevent improper cooling and therma l damage, do not operate the server unless 
all bays are populated with either a component or a blank. 
  
1.  Power down the server (on page  21). 
2. Extend the server from the rack ( Extending the server from the rack  on page 21). 
3. Remove the access panel ( Removing the access panel on page 23). 
4. Remove the bracket. 
  
						

							
 
Hardware options  installation 50 
5.
 
Remove the tape drive blank. 
 
6. Turn the tape drive blank over, and then remove the screws.