Administrator's Guide Supporting RSA Data Protection Manager (DPM) Environments (Supporting Fabric OS v7.2.0) Owner's manual
Table Of Contents
- Contents
- About This Document
- Encryption Overview
- In this chapter
- Host and LUN considerations
- Terminology
- The Brocade Encryption Switch
- The FS8-18 blade
- FIPS mode
- Performance licensing
- Recommendation for connectivity
- Usage limitations
- Brocade encryption solution overview
- Data encryption key life cycle management
- Master key management
- Support for virtual fabrics
- Cisco Fabric Connectivity support
- Configuring Encryption Using the Management Application
- In this chapter
- Encryption Center features
- Encryption user privileges
- Smart card usage
- Using authentication cards with a card reader
- Registering authentication cards from a card reader
- Registering authentication cards from the database
- Deregistering an authentication card
- Setting a quorum for authentication cards
- Using system cards
- Enabling or disabling the system card requirement
- Registering systems card from a card reader
- Deregistering system cards
- Using smart cards
- Tracking smart cards
- Editing smart cards
- Network connections
- Blade processor links
- Encryption node initialization and certificate generation
- Steps for connecting to a DPM appliance
- Exporting the KAC certificate signing request (CSR)
- Submitting the CSR to a certificate authority
- KAC certificate registration expiry
- Importing the signed KAC certificate
- Uploading the CA certificate onto the DPM appliance (and first-time configurations)
- Uploading the KAC certificate onto the DPM appliance (manual identity enrollment)
- DPM key vault high availability deployment
- Loading the CA certificate onto the encryption group leader
- Encryption preparation
- Creating an encryption group
- Adding a switch to an encryption group
- Replacing an encryption engine in an encryption group
- High availability clusters
- Configuring encryption storage targets
- Configuring hosts for encryption targets
- Adding target disk LUNs for encryption
- Adding target tape LUNs for encryption
- Moving targets
- Tape LUN write early and read ahead
- Tape LUN statistics
- Encryption engine rebalancing
- Master keys
- Security settings
- Zeroizing an encryption engine
- Using the Encryption Targets dialog box
- Redirection zones
- Disk device decommissioning
- Rekeying all disk LUNs manually
- Thin provisioned LUNs
- Viewing time left for auto rekey
- Viewing and editing switch encryption properties
- Viewing and editing encryption group properties
- Encryption-related acronyms in log messages
- Configuring Encryption Using the CLI
- In this chapter
- Overview
- Command validation checks
- Command RBAC permissions and AD types
- Cryptocfg Help command output
- Management LAN configuration
- Configuring cluster links
- Setting encryption node initialization
- Steps for connecting to a DPM appliance
- Initializing the Fabric OS encryption engines
- Exporting the KAC certificate signing request (CSR)
- Submitting the CSR to a CA
- Importing the signed KAC certificate
- Uploading the CA certificate onto the DPM appliance (and first-time configurations)
- Uploading the KAC certificate onto the DPM apliance (manual identity enrollment)
- Creating a Brocade encryption group
- Client registration for manual enrollment
- DPM key vault high availability deployment
- Setting heartbeat signaling values
- Adding a member node to an encryption group
- Generating and backing up the master key
- High availability clusters
- Re-exporting a master key
- Enabling the encryption engine
- Zoning considerations
- CryptoTarget container configuration
- Crypto LUN configuration
- Impact of tape LUN configuration changes
- Decommissioning LUNs
- Decommissioning replicated LUNs
- Force-enabling a decommissioned disk LUN for encryption
- Force-enabling a disabled disk LUN for encryption
- SRDF LUNs
- Using SRDF, TimeFinder and RecoverPoint with encryption
- Configuring LUNs for SRDF/TF or RP deployments
- SRDF/TF/RP manual rekeying procedures
- Tape pool configuration
- Configuring a multi-path Crypto LUN
- First-time encryption
- Thin provisioned LUNs
- Data rekeying
- Deployment Scenarios
- In this chapter
- Single encryption switch, two paths from host to target
- Single fabric deployment - HA cluster
- Single fabric deployment - DEK cluster
- Dual fabric deployment - HA and DEK cluster
- Multiple paths, one DEK cluster, and two HA clusters
- Multiple paths, DEK cluster, no HA cluster
- Deployment in Fibre Channel routed fabrics
- Deployment as part of an edge fabric
- Deployment with FCIP extension switches
- Data mirroring deployment
- VMware ESX server deployments
- Best Practices and Special Topics
- In this chapter
- Firmware upgrade and downgrade considerations
- Configuration upload and download considerations
- Configuration upload at an encryption group leader node
- Configuration upload at an encryption group member node
- Information not included in an upload
- Steps before configuration download
- Configuration download at the encryption group leader
- Configuration download at an encryption group member
- Steps after configuration download
- HP-UX considerations
- AIX considerations
- Enabling a disabled LUN
- Decommissioning in an EG containing mixed modes
- Decommissioning a multi-path LUN
- Disk metadata
- Tape metadata
- Tape data compression
- Tape pools
- Tape block zero handling
- Tape key expiry
- Configuring CryptoTarget containers and LUNs
- Redirection zones
- Deployment with Admin Domains (AD)
- Do not use DHCP for IP interfaces
- Ensure uniform licensing in HA clusters
- Tape library media changer considerations
- Turn off host-based encryption
- Avoid double encryption
- PID failover
- Turn off compression on extension switches
- Rekeying best practices and policies
- KAC certificate registration expiry
- Changing IP addresses in encryption groups
- Disabling the encryption engine
- Recommendations for Initiator Fan-Ins
- Best practices for host clusters in an encryption environment
- HA Cluster deployment considerations and best practices
- Key vault best practices
- Tape device LUN mapping
- Maintenance and Troubleshooting
- In this chapter
- Encryption group and HA cluster maintenance
- Displaying encryption group configuration or status information
- Removing a member node from an encryption group
- Deleting an encryption group
- Removing an HA cluster member
- Displaying the HA cluster configuration
- Replacing an HA cluster member
- Deleting an HA cluster member
- Performing a manual failback of an encryption engine
- Encryption group merge and split use cases
- A member node failed and is replaced
- A member node reboots and comes back up
- A member node lost connection to the group leader
- A member node lost connection to all other nodes in the encryption group
- Several member nodes split off from an encryption group
- Adjusting heartbeat signaling values
- EG split possibilities requiring manual recovery
- Configuration impact of encryption group split or node isolation
- Encryption group database manual operations
- Key vault diagnostics
- Measuring encryption performance
- General encryption troubleshooting
- Troubleshooting examples using the CLI
- Management application encryption wizard troubleshooting
- LUN policy troubleshooting
- Loss of encryption group leader after power outage
- MPIO and internal LUN states
- FS8-18 blade removal and replacement
- Brocade Encryption Switch removal and replacement
- Deregistering a DPM key vault
- Reclaiming the WWN base of a failed Brocade Encryption Switch
- Removing stale rekey information for a LUN
- Downgrading firmware from Fabric OS 7.1.0
- Fabric OS and DPM Compatibility Matrix
- Splitting an encryption group into two encryption groups
- Moving an encryption blade from one EG to another in the same fabric
- Moving an encryption switch from one EG to another in the same fabric
- State and Status Information
- Index

272 Fabric OS Encryption Administrator’s Guide (DPM)
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General encryption troubleshooting
6
A backup fails because the LUN is always in the initialize
state for the tape container.
Tape media is encrypted and gets a key which is archived
in the key vault. The key is encrypted with a master key. At a
later point in time you generate a new master key. You
decide to use this tape media to back up other data. You
rewind the tape, erase the tape, relabel the tape, and start
a backup from the start of the tape. When the first
command comes from the host, the key vault is queried for
the tape media based on the media serial number. Since
this tape media was used previously, the key is already
present in the key vault for this media serial number but
this key is encrypted with the old master key and that
master key is not present in the switch. You cannot create a
new key for this tape media because, per policy, there can
be only one key per media.
Use one of two resolutions:
• Load the old master key on the switch at an alternate location. The key
for the tape media can then be decrypted.
• Delete the key for the tape media from the key vault. This forces the
switch to create a new key for the tape media.
Until you start the backup, the LUN remains in “initialize” state.
“Invalid certificate” error message received when doing a
KAC certificate exchange between the Brocade Encryption
Switch and a key management system appliance. This error
is due to the Brocade Encryption Switch time being ahead
of the appliance time.
Use one of two resolutions:
• Change the appliance time to match the start period of the KAC
certificate.
• Change the Brocade Encryption Switch time to synchronize with the
appliance time.
Upon completion, regenerate the KAC certificate and then do another KAC
certificate exchange with the appliance.
“Temporarily out of resources” message received during
rekey or first time encryption.
Rekey or first-time encryption sessions are pending due to resource
unavailability. A maximum of 10 sessions including rekey (manual or auto)
and first time encryption sessions are supported per encryption switch or
blade and two sessions per target. The system checks once every hour to
determine, if there are any rekey or first time encryption sessions pending. If
resources are available, the next session in the queue is processed. There
may be up to an hour lag before the next session in the queue is processed. It
is therefore recommended that you do not schedule more than 12 rekey or
first time encryption sessions.
HA cluster creation fails with error, Create HA cluster status:
The IO link IP address of the encryption engine (online) is
not configured, even though both the addresses are set
and accessible.
The IP addresses for the I/O link ports should be configured before enabling
the encryption engine. Failure to do so results in unsuccessful HA Cluster
creation. If the IP addresses for these ports were configured after the
encryption engine is enabled, reboot the encryption switch or
slotpoweroff/slotpoweron the encryption blade to sync up the IP address
information to the encryption engine.
Rekeying fails with error “Disabled (Key not in sync)”. Rekeying was started on a remote encryption engine but the local encryption
engine is not capable of starting rekey because the key returned from key
vault does not match with the Key ID used by remote encryption engine. You
will need to re-enable the LUN after the keys are synced between two key
vaults properly using the needs to cryptocfg --discoverLUN <Container
Name> command.
cryptocfg --commit fails with message “Default zone set
to all access at one of nodes in EG.”
Default zoning must be set to no access.
TABLE 10 General errors and conditions
Problem Resolution