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
See the following table for a list of RLM or OCE options: The source RAID level column indicates the virtual disk RAID level
before the RLM or OCE operation and the target RAID level column indicates the RAID level after the RLM or OCE operation.
Table 6. RAID level migration
Source RAID
Level
Target RAID
Level
Number of
Physical Disks
(Beginning)
Number of
Physical Disks
(End)
Capacity
Expansion
Possible
Description
RAID 0 RAID 0 1 or more 2 or more Yes Increases capacity by adding
disks.
RAID 0 RAID 1 1 2 Yes Converts a non-redundant
virtual disk into a mirrored
virtual disk by adding one disk.
RAID 0 RAID 5 1 or more 3 or more Yes Adds distributed parity
redundancy; at least one disk
needs to be added.
RAID 0 RAID 6 1 or more 4 or more Yes Adds dual distributed parity
redundancy; at least two disks
need to be added.
RAID 1 RAID 0 2 2 or more Yes Removes redundancy while
increasing capacity.
RAID 1 RAID 5 2 3 or more Yes Maintains redundancy while
adding capacity.
RAID 1 RAID 6 2 4 or more Yes Adds dual distributed parity
redundancy and adds capacity.
RAID 5 RAID 0 3 or more 2 or more Yes Converts to a non-redundant
virtual disk and reclaims
disk space that is used for
distributed parity data; one
disk can be removed.
RAID 5 RAID 5 3 or more 4 or more Yes Increases capacity by adding
disks.
RAID 5 RAID 6 3 or more 4 or more Yes Adds dual distributed parity
redundancy; at least one disk
needs to be added.
RAID 6 RAID 0 4 or more 2 or more Yes Converts to a non-redundant
virtual disk and reclaims
disk space that is used for
distributed parity data; two
disks can be removed.
RAID 6 RAID 5 4 or more 3 or more Yes Removes one set of parity
data and reclaims disk space
used for it; one disk can be
removed.
RAID 6 RAID 6 4 or more 5 or more Yes Increases capacity by adding
disks.
RAID 10 RAID 10 4 or more 6 or more Yes Increases capacity by adding
disks; an even number of disks
need to be added.
NOTE: The total number of physical disks in a disk group cannot exceed 32. You cannot perform a RAID level migration and
expansion on RAID levels 50 and 60.
22 Features of PowerEdge RAID Controller 11