Users Guide
Table Of Contents
- Dell Technologies PowerEdge RAID Controller 11 User’s Guide PERC H755 adapter, H755 front SAS, H755N front NVMe, and PERC H755 MX adapter
- Contents
- Dell Technologies PowerEdge RAID Controller 11
- Applications and User Interfaces supported by PERC 11
- Features of PowerEdge RAID Controller 11
- Controller features
- Virtual disk features
- Hard drive features
- Fault tolerance
- Install and remove a PERC 11 card
- Safety instructions
- Before working inside your system
- After working inside your system
- Remove the PERC H755 adapter
- Install the PERC H755 adapter
- Remove the PERC H755 front SAS card
- Install the PERC H755 front SAS card
- Remove the PERC H755N front NVMe card
- Install the PERC H755N front NVMe card
- Remove the PERC H755 MX adapter
- Install the PERC H755 MX adapter
- Driver support for PERC 11
- Firmware
- Manage PERC 11 controllers using HII configuration utility
- Enter the PERC 11 HII configuration utility
- Exit the PERC 11 HII configuration utility
- Navigate to Dell PERC 11 configuration utility
- View the HII Configuration utility dashboard
- Configuration management
- Controller management
- Clear controller events
- Save controller events
- Save debug log
- Enable security
- Disable security
- Change security settings
- Restore factory default settings
- Auto configure behavior
- Manage controller profile
- Advanced controller properties
- Virtual disk management
- Physical disk management
- Hardware components
- Security key management in HII configuration utility
- Security key and RAID management
- Security key implementation
- Local Key Management
- Create a security key
- Change Security Settings
- Disable security key
- Create a secured virtual disk
- Secure a non-RAID disk
- Secure a pre-existing virtual disk
- Import a secured non-RAID disk
- Import a secured virtual disk
- Dell Technologies OpenManage Secure Enterprise Key Manager
- Supported controllers for OpenManage Secure Enterprise Key Manager
- Manage enterprise key manager mode
- Disable enterprise key manager mode
- Manage virtual disks in enterprise key manager mode
- Manage non–RAID disks in enterprise key manager mode
- Migration of drives from local key management to enterprise key management
- Troubleshooting
- Single virtual disk performance or latency in hypervisor configurations
- Configured disks removed or not accessible error message
- Dirty cache data error message
- Discovery error message
- Drive Configuration Changes Error Message
- Windows operating system installation errors
- Firmware fault state error message
- Foreign configuration found error message
- Foreign configuration not found in HII error message
- Degraded state of virtual disks
- Memory errors
- Preserved Cache State
- Security key errors
- General issues
- Physical disk issues
- Physical disk in failed state
- Unable to rebuild a fault tolerant virtual disk
- Fatal error or data corruption reported
- Multiple disks are inaccessible
- Rebuilding data for a failed physical disk
- Virtual disk fails during rebuild using a global hot spare
- Dedicated hot spare disk fails during rebuild
- Redundant virtual disk fails during reconstruction
- Virtual disk fails rebuild using a dedicated hot spare
- Physical disk takes a long time to rebuild
- Drive removal and insertion in the same slot generates a foreign configuration event
- SMART errors
- Replace member errors
- Linux operating system errors
- Drive indicator codes
- HII error messages
- Appendix RAID description
- Getting help
- Documentation resources
Configure Virtual Disks
When configuring the virtual disks, you should consider the workload intended; RAID 1: for simple boot disk; RAID 5 or 6: for file
or web servers (sequential reads/writes of files); RAID 10: for transactional database (small random reads and writes).
Virtual disks configured on hard drives should use the controller default cache setting of Write Back and Read Ahead.
Virtual disks configured on SSDs can use the same controller defaults settings as hard drives. Most users perform a copy of OS
files or a data base to the new array. This setting provides optimum performance in this configuration.
Once the copy is complete, the array can be used as it is depending on the number and type of SSDs. It is recommended to
enable FastPath by changing the controller's Write cache policy to Write Through and the Read cache policy to No Read Ahead.
FastPath is developed to achieve the best random read/write performance from SSDs.
Only IO block sizes smaller than the virtual disk's stripe size are eligible for FastPath. In addition, there should be no background
operations (rebuild, initialization) running on the virtual disks. FastPath is disabled if there is active background operation.
NOTE: RAID 50, and RAID 60 virtual disks cannot use FastPath.
NOTE: The Physical Disk Power Management feature is not applicable to FastPath-capable virtual disks.
Perform expand virtual disk operation
Prerequisites
To enable expand virtual disk feature from the HII Configuration Utility, perform the following steps:
Steps
1. Enter the Dell PERC 11 Configuration Utility. See Navigate to Dell PERC 11 configuration utility.
2. Click Main Menu > Virtual Disk Management.
The list of virtual disks is displayed.
3. Select the virtual disk.
4. From the Operations drop-down menu, select Expand Virtual Disk.
NOTE: You can view the Expand Virtual Disk feature only if there is free space available in the associated disk group.
5. Click Go.
6. To expand virtual disk, enter the percentage of available capacity, and then click Ok.
A screen is displayed asking if you are sure you want to perform the operation.
7. Select the Confirm option.
8. Click Yes.
The expand virtual disk operation is completed successfully.
Perform consistency check
Prerequisites
To enable consistency check from the HII Configuration Utility, perform the following steps:
Steps
1. Enter the Dell PERC 11 Configuration Utility. See Navigate to Dell PERC 11 configuration utility.
2. Click Main Menu > Virtual Disk Management.
The list of virtual disks is displayed.
3. Select the virtual disk.
NOTE: Consistency check cannot be run on RAID 0 virtual disks.
4. From the Operations drop-down menu, select Check Consistency.
5. Click Go.
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Manage PERC 11 controllers using HII configuration utility