Dell Unity XT 680 EMC Unity Family VNX Series Data Import to Unity All Flash o
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- Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 1
Dell EMC Unity™ Family VNX® Series Data Import to Unity All Flash or Hybrid, or UnityVSA™ System User Guide Version 5.1 Part Number: 302-003-062 June 2021 Rev. 07 - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 2
and tells you how to avoid the problem. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. © 2016 - 2021 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 3
Unity system. Along with relevant concepts and instructions User Guide. Unity Technical Documentation at: https://www.dell.com/ unitydocs. Troubleshooting For information about products, software updates, licensing, and service, go to Support (registration required) at: https:// www.dell.com/support - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 4
An import is always conducted from the Unity storage system. The target system makes a remote call to the VNX storage system and instigates a pull (for file-based import) or push (for block-based import) of the source storage resources to the target system. 4 Introduction - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 5
can manually import a VDM from a VNX storage system to a Unity Unity system. VDM import operations support only: ● Import of VDM with only NFSV3 protocol enabled (VDMs with NFSV4 protocol enabled not supported ○ Routing configuration ○ VLAN configuration ● Name Services: ○ DNS ○ LDAP ○ Local files ○ - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 6
to support only NFSv3 clients configured for UTF-8. The code page on these Unity systems cannot be changed. With Unity OE 4.3 and later, the code page of the Unity system can be changed through the svc_nas { | all} -param -facility vdm -modify codepage -value service command - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 7
with two Control Stations. ● Before starting a VDM import, create an import connection between the source VNX system and the target Unity system. NOTE: If the naming services server (DNS, NIS, or LDAP) configured on the Data Mover of the source VNX cannot be connected using the network interface - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 8
that hosts the source VDM, as well as the target Unity SPs. Refer to Configuring Time Services on VNX for information about NTP. ● One or more pools must Configuring and Managing CIFS on VNX for more information about enabling local user support on VNX. ■ A local user that is a member to the local - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 9
can connect to the naming services server as well as other clients of the Data Mover. Multiprotocol VDM import Beginning with Unity OE 5.1, you can perform a multiprotocol migration session only if the source VNX VDM and the Unity VDM support multiprotocol access. When configuring a multiprotocol - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 10
and the target Unity SPs. See Configuring Time Services on VNX for information about NTP. ● One or more pools must be created and available on the target Unity system to and Managing CIFS on VNX for more information about enabling local user support on VNX. ○ A local user that is a member to the - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 11
of the file systems. ○ The source VDM is utf8-based. ASCII file systems are not supported. ○ Verify that the SMB server is not a Windows NT 4.0-like CIFS server. ○ DNS or Consistency Group (CG) of LUNs, from the VNX system to the Unity system. This limit is based on the SAN Copy limits of the source - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 12
or more LUNs or a CG of LUNs from a VNX storage system to a Unity storage system requires the following prerequisites: ● SAN Copy is enabled on the VNX resources are imported. If needed, you can reconfigure host access on the Unity system. NOTE: Do not use ports that are used by MirrorView for - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 13
required between the source VNX system to the target Unity system. Once an import connection is created, the Unity target system automatically discovers both file and block resources on the source system. NOTE: The SAN Copy Enabler must be installed on the VNX1 storage system so that block resources - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 14
Dell EMC Unity system, ensure the Dell EMC Unity system is running operating environment (OE) version 4.5 or later. NOTE: Dell EMC Unity systems running OE 4.4 or earlier do not support when FLR is enabled The default DHSM service port is 5080 on both VNX and Unity systems. However, the VNX Data - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 15
Security Configuration Guide for VNX. For more information related to the svc_nas service command, refer to the Unity Service Commands Technical systems are imported as normal target file systems (UFS64). Unity systems with OE version 4.5 and later support both FLR-E and FLR-C. ● Only uxfs-type file - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 16
is completed. ○ After cutover, a host cannot write data when the source file system is in the read-only mounted state. ○ Dell EMC Unity systems running OE 4.4 or earlier do not support FLR, and the default import setting is to not import such file systems. However, you can override the default, and - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 17
the Unity system) is not supported. ○ If multiple LDAP servers are configured with different port numbers that are used by the source VDM, only the server with the port number equal to the first server is migrated. ○ If both NIS and LDAP are configured and taken into effect for the naming service on - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 18
write data when the source file system is in the read-only mounted state. ○ (Does not apply to Unity systems running OE 4.5 or later) Dell EMC Unity systems running OE 4.4 or earlier do not support FLR, and the default import setting is to not import such file systems. However, you can override the - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 19
sometimes be impacted. Client access issues can arise from access policy differences between the source VNX system and the target Unity system. ● Multiprotocol migrations only support CIFS and NFSv3. ● A VDM that contains a stand-alone CIFS server cannot be migrated. ● The CIFS server alias is not - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 20
on the source system can be changed. However, it is highly recommended that you configure these limits before a Remote System connection is established between the Unity and VNX systems. 20 Considerations for import - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 21
SPB on the target Unity system. Once the mobility interface is configured, you can create the import connection between the Unity system and the VNX the VLAN ID only when you have configured the network switch port to support VLAN tagging of multiple VLAN IDs. Steps 1. Under Protection & Mobility, - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 22
the mobility interfaces have been configured (required for file import only), you can create a single import connection between the Unity system and the source VNX system. The import connection supports either block or file import sessions. You need to enter the IP address of the source SPA or SPB - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 23
This ensures that the source Data Mover can provide uninterrupted Name Services for the remaining file servers. The VDM import session will fail by name for the Resource. OE 5.1.0 supports multiprotocol migration from a VNX source VDM to a Unity destination VDM. For multiprotocol migrations, choose - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 24
8. Click Finish to create and start the import session. The Results window appears and shows the progress of the creation and start of the import session. Manage import sessions for file About this task An import session establishes an end-to-end path for an import operation between a source and - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 25
Thin is not selected, Data Reduction cannot be selected and is disabled. If Thin is selected, Data Reduction can be selected. Data reduction is only supported on All-Flash pools. In the Access step, select or add a host or hosts that can access the storage resource. In the Setting step, specify - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 26
Action Cutover Cancel Commit Description Select a session and under More Actions, click Cutover to cut over an import session to promote the target to production mode. Select a session and under More Actions, click Cancel. You can cancel an import session that is in any state (with the exceptions - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 27
5 Configure import using the CLI Topics: • Create mobility interfaces • Create remote system configurations • View import sessions • Create a NAS import session • View import sessions for file • Change import session settings for file • Cutover import session for file • Commit import session for - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 28
Qualifier Description NOTE: If no VLAN ID is specified, which is the default, packets do not have VLAN tags. The Unisphere online help provides more details about VLANs. -addr Specify the IP address for the interface. The prefix length should be appended to the IPv6 address and, if omitted, will - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 29
Qualifier Description -srcPasswordSecure Specify the password in secure mode. Once you run the command with this qualifier, you will be asked to type the password separately. -dstUsername For systems that are the destination in a replication session or VNX in an import session, specify the - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 30
Create an import connection from the source VNX to the current Unity-based target system. ● Create a target pool. ● If Unity OE 4.3 and later, the code page of the Unity system can be changed through the svc_nas { | all} -param -facility vdm -modify codepage -value service - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 31
~sourceFsId3:destination_pool_friendlyId (sourceFsId2 and sourceFsId3 must be existing supported source file system IDs, the other file system IDs will be created by default. Specifies the username for authentication to DHSM service on the source Data Mover. NOTE: When the source VDM has FLR-E/C file systems - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 32
for UNIX. ● none - Do not use any of UNIX directory services. (Optional) Specifies the username for authentication to the CIFS server on the sourceFsId2~sourceFsId3. sourceFsId1, sourceFsId2, and sourceFsId3 must be existing supported source file system IDs. The source file systems with IDs - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 33
skipped. Import session creation compares server parameters between VNX and Unity. When import session creation fails with a Server parameter error, interfaces will be created is spa_iom_0_eth0. ● Migrate the direct match UNIX Directory Service. ● File systems 13, 20 through 25, and 30 are to be - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 34
100~200:pool_2 and 255:pool_3. ● Target port where NAS server production interfaces will be created is spa_iom_0_eth0. ● Migrate the direct match UNIX Directory Service. ● File systems 13, 20 through 25, and 30 are to be imported as VMware datastore file systems. ● File systems 14, 22, 25 through 30 - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 35
Format /import/session/nas [{-id | -active | -completed | -cancelled}] show Object qualifier Qualifier -id -active -completed -cancelled Description Type the ID of the import session. Show only active sessions (sessions that are not completed or cancelled). Show only completed sessions. - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 36
Source file systems imported with compression enabled = Source file systems imported with data reduction enabled = Source file systems imported with advanced deduplication enabled = Target resource = nas_2 Target resource pool = pool_1 Target file system to pool mapping = res_12~res 13: - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 37
Qualifier -productionIfPortPairs -productionIfVlanPairs -srcLocalCifsAdminUsername -srcLocalCifsAdminPasswd -srcLocalCifsAdminPasswdSecure Description Specifies the source VDM production interface and target port pairs. Applicable only when the session status is Initialized or the target production - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 38
Operation completed successfully. Cutover import session for file Cut over an existing NAS import session. Cutting over a session switches the active host IOs to the target side and initiates the incremental data synchronization from the source to the target. Format /import/session/nas -id - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 39
Example 2 The following command shows the SMB import session, import_1, being cut over to the target system: uemcli -d 10.0.0.1 -u Local/joe -p /import/session/nas -id import_1 cutover -cifsServerName -domainUsername -domainPasswd Storage system address: 10.0.0.1 - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 40
Operation completed successfully. Cancel a NAS import session Cancel an existing NAS import session. Format /import/session/nas -id cancel [-async] [-domainUsername {-domainPasswd | -domainPasswdSecure}] [-ou ] Object qualifier Qualifier -id Description Type the - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 41
session, complete the following configuration tasks: ● Create interfaces on both source and target for data transfer. ● Create an import connection to a Unity-based target system. ● Create a block import target (LUN or LUN Group) on the target system. Format /import/session/block create [-async - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 42
Qualifier Description -importAsVMwareDatastore Specifies whether the source LUN is to be imported as a VMware datastore (VMFS). This option is only valid for a LUN session and is not valid for a CG session. Valid values are: ● yes ● no Example The following command creates an import session with - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 43
Session type = block Health state = OK (5) Health details = "This import session is operating normally. No action is required." State = Syncing Progress = 0% Source system = RS_65535 Source resource = LUNGroup1 Target resource = res_1 Estimated remaining bytes = 47185920 (45 M) - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 44
uemcli -d 10.0.0.1 -u Local/joe -p MyPassword456! /import/session/block -id import_1 set -name newName -throttle no -cutoverThreshold 5 Storage system address: 10.0.0.1 Storage system port: 443 HTTPS connection Operation completed successfully. Cut over import session for block Cut over and - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 45
Format /import/session/block -id cancel [-async] Object qualifier Qualifier -id Description Type the ID of the import session. Action qualifier Qualifier -async Description Run the action in asynchronous mode. Example The following command commits the block import session, import_1. - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 46
1: Source system = RS_1 Source resource = lun1 Target resource = sv_1 Health state = OK (5) Health details = "The component is operating normally. No action is required." Stage = Incremental Sync Iteration = 4 Progress = 10% Source system = RS_1 Source resource = lun4 Target Resource - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 47
6 Troubleshooting Topics: • Information related to import operation problems • VNX system with two Control Stations Information related to import operation problems Before you contact your service provider, use either Unisphere or the Unisphere CLI to access information about jobs that failed - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 48
Unisphere Online Help or the Unisphere Command Line Interface User Guide. Log information One of the most useful logs for reviewing Station of the VNX does not have a user home directory, you can manually fail over the Control Station. The following is an example set up by logging Troubleshooting - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 49
Most of the NFS-only VDM import operations are executed from the target Unity storage system. However, some initial setup operations, such as creating an port exists, and supports the type file. 11. All the specified target production ports in the interface-port pairs exist, support the type file, - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 50
Unity OE 4.3 and later, the code page of the Unity system can be changed through the svc_nas { | all} -param -facility vdm -modify codepage -value service . At this time, you can fix the problem by getting detailed information from the job and tasks and then resume the - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 51
file systems. If the file system is imported as a VMware NFS data store on Unity, quotas import dumping is skipped. 5. A private server is set up for data file ● LDAP configuration ● NIS configuration ● UNIX Directory Service setting ● Quota configuration Once the configuration import completes, the - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 52
NIS connectivity is enabled before cutover. CAUTION: The Unity system firewall can block a NAS server from successfully. In this case, follow the instructions to resolve the access issue. To resolve Multiprotocol sharing enabled = no Unix directory service = localThenNis Health state = OK (5) - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 53
the source as well to guarantee that the data is identical between the source VDM and target NAS server. Pause and resume operations are supported during the incremental copy. NOTE: The data change synchronized back to the source storage system cannot be paused. During incremental copy, quota import - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 54
configuration (UNIX Directory service, DNS) is kept when reviewing or troubleshooting import session progress supported on Unity storage systems. Mount option mapping between VNX and Unity maps the VNX mount options that Unity supports. Table 1. Mount option mapping between VNX and Unity VNX Unity - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 55
, refer to the Unisphere Command Line Interface User Guide, Unity Unisphere Online Help, and Unity Service Commands Technical Notes. NFS export options mapping Some of the NFS export options for VNX storage systems are not supported on Unity storage systems. NFS export option mapping between VNX - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 56
of valid source production interfaces cannot exceed the limit of network interfaces for each NAS server on the target Unity system. See the Unity Support Matrix on Online Support for information about network interface limits related to NAS servers. 23. A single CIFS server is configured on the - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 57
security is enabled on the source. Share and UNIX security level is not supported. 30. The source VDM is not utf8-based. 31. The source CIFS file systems, the source VNX Data Mover that is running the DHSM service must be configured with username and password credentials. 36. Before you begin - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 58
failed to provision target resource. At this time, you can fix the problem by getting detailed information from the job and tasks and then resume the If CTA is configured on the source VNX system and a VDM import to Unity is run, all files on the associated file system are imported as regular files - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 59
system or file systems to the matching target file system or file systems. If the file system is imported as a VMware FS data store on Unity, quotas import dumping is skipped. 9. Copy data of all the file systems from the source to the target file systems. The whole directory and file - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 60
● cacheMaxHosts ● SecurityLayer ● maxNISCacheGroupsCount ● maxNISCacheUsersCount ● followabsolutpath ● followdotdot ● Traces After the parameter values are applied, the NAS server is restarted to take the new values into account. If import failed during initial copy, the configuration import is not - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 61
is cancelled after the cutover. Pause and resume operations are supported during the incremental copy. However, only the incremental copy process the import session is committed. CIFS-only VDM import pause You can manually pause an import session during the Initial Copy state and Incremental Copy - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 62
can reuse the AD account without any change. NOTE: Since AES256 is not supported on the VNX, regular CIFS clients may need to clear their kerberos cache , Completed). This report can be meaningful when reviewing or troubleshooting import session progress. In Unisphere, after creating an import - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 63
configured in the Windows domain. 17. The NT security must be enabled on the source VDM. NOTE: Share and UNIX-level security levels are not supported. 18. All the specified source file systems in the file system-pool pairs exist, and are valid import candidates. (These import candidates are mounted - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 64
access policy mapping VNX access policies are mapped to three types of access policies in Unity. NOTE: Access policies differences can affect client access during migration. Multiprotocol migration does not support the following: ● NT to UNIX ● UNIX to Windows The following table shows the range of - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 65
but not mandatory. If the locking policy is not defined, nolock is the default setting for VNX and mandatory is the default setting for Unity. The following table describes NFS client policy locking rules for VNX: Locking policy nolock (default) wlock rwlock NFS clients This policy enables you to - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 66
the Quotas Group. will not be migrated, and The default is false on VNX and Unity. This parameter cannot be changed on Unity. it should be 1 on VNX. Please, set it manually via .server_config command, such as; .server_config [DM_name] -v "param cifs acl.noGidMapping=1". 66 Multiprotocol VDM - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 67
. Please, set it manually via svc_nas script. Current Unity value: ; default Unityvalue: Multiprotocol UserMapper import You can migrate the configuration for UserMapper from VNX to Unity. UserMapper is a VNX service that automatically maps - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 68
Copy with a Minor failure health state and the health details are set to The migration session failed to provision target resource. You can fix the problem by getting detailed information from the job and tasks and then resume the import session. The start of an import session is an asynchronous - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 69
back to the source guarantees that the data is identical between the source VDM and target NAS server. Pause and resume operations are supported during the incremental copy. NOTE: Not all permission changes are synced back to the source due to different access policies. During incremental copy - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 70
Multiprotocol VDM import cancel You can cancel an ongoing migration session anytime except during the cutting-over and committing phases. Depending on which state the migration session is in, canceling the migration session produces different results: ● Before the import session starts, a migration - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 71
source and target systems: ● For an import using an FC-based connection, FC ports are cabled and ports zoning is configured between the VNX and Unity storage systems. NOTE: Avoid ports that are used for host traffic and MirrorView. On the VNX, SAN Copy and MirrorView configured on the same ports - Dell Unity XT 680 | EMC Unity Family VNX Series Data Import to Unity All Flash o - Page 72
health state and the health details being set to The import session failed to provision target resource. At this time, you can fix the problem by getting detailed information from the job and tasks and then resume the import session. The start of an import session is an asynchronous operation
Dell EMC Unity™ Family VNX® Series Data
Import to Unity All Flash or Hybrid, or
UnityVSA™ System User Guide
Version 5.1
Part Number: 302-003-062
June 2021
Rev. 07