Page 3 - Preface
Preface This manual describes how to use the data replication function provided by NEC Storage DynamicDataReplication Ver2, NEC Storage RemoteDataReplication Ver2, and NEC Storage ReplicationControl. The data replication function consists of the replication volume creation function provided in a dis...
Page 5 - Contents; Chapter 1
i Contents Chapter 1 Installation Procedure ....................................................................................................................................... 1 1.1 Installation Procedure ..............................................................................................
Page 6 - ii; This page is intentionally left blank.
Page 7 - Chapter 1 Installation Procedure; the 2000 series disk array subsystem.
Chapter 1 Installation Procedure 1 Chapter 1 Installation Procedure This chapter describes the system installation procedures showing an example of a tape backup system that uses the 2000 series disk array subsystem. 1 1 1 . . . 1 1 1 I I I n n n s s s t t t a a a l l l l l l a a a t t t i i i o o o...
Page 8 - forth. Figure 1-1 shows an example of hardware configuration.; LTO
Chapter 1 Installation Procedure 2 1 1 1 . . . 2 2 2 S S S y y y s s s t t t e e e m m m C C C o o o n n n f f f i i i g g g u u u r r r a a a t t t i i i o o o n n n 1 1 1 . . . 2 2 2 . . . 1 1 1 H H H a a a r r r d d d w w w a a a r r r e e e C C C o o o n n n f f f i i i g g g u u u r r r a a a t...
Page 9 - -2 shows a software configuration example.
Chapter 1 Installation Procedure 3 1 1 1 . . . 2 2 2 . . . 2 2 2 S S S o o o f f f t t t w w w a a a r r r e e e C C C o o o n n n f f f i i i g g g u u u r r r a a a t t t i i i o o o n n n Select software to be used according to the hardware components, operating conditions, etc. Figure 1-2 shows ...
Page 10 - accordance with your OS.
Chapter 1 Installation Procedure 4 1 1 1 . . . 3 3 3 S S S o o o f f f t t t w w w a a a r r r e e e I I I n n n s s s t t t a a a l l l l l l a a a t t t i i i o o o n n n 1 1 1 . . . 3 3 3 . . . 1 1 1 R R R e e e p p p l l l i i i c c c a a a t t t i i i o o o n n n M M M a a a n n n a a a g g g e...
Page 12 - (2) ReplicationControl Software Installation
Chapter 1 Installation Procedure 6 (2) ReplicationControl Software Installation To install ReplicationControl, follow the procedure below. (1) Log on as the Administrator. (2) Set the ReplicationControl installation media on CD-ROM drive and execute the following install program in the CD-ROM drive:...
Page 13 - ReplicationControl; (5) Replication operation option setting
Chapter 1 Installation Procedure 7 (4) Select the deletion of the following software component by using [Add/Remove Programs] ([Add or Remove Programs] for Windows Server 2003) in [Control Panel] to start uninstallation: • ReplicationControl (5) Follow the directions of the uninstaller. The followin...
Page 15 - Figure 1-3 shows an example of setting five pairs.
Chapter 1 Installation Procedure 9 1 1 1 . . . 4 4 4 D D D i i i s s s k k k A A A r r r r r r a a a y y y C C C o o o n n n f f f i i i g g g u u u r r r a a a t t t i i i o o o n n n For the disk array to be connected, determine the configuration for using the data replication. 1 1 1 . . . 4 4 4 ....
Page 16 - The PD group number for PD and RANK is 00.
Chapter 1 Installation Procedure 10 Figure 1-4 shows an example of setting five pairs and one IV on the backup server as a control volume. A control volume is used when a server issues control I/O to the relevant disk array. For details of a control volume, refer to 1.5 “Control Volume Setting”, 3.9...
Page 19 - MV
Chapter 1 Installation Procedure 13 1 1 1 . . . 4 4 4 . . . 3 3 3 A A A c c c c c c e e e s s s s s s C C C o o o n n n t t t r r r o o o l l l S S S e e e t t t t t t i i i n n n g g g Normally, in a system without clusters, one volume cannot be connected to more than one server to prevent data inc...
Page 21 - MV and RV to be paired must have the same LD capacity and OS type.
Chapter 1 Installation Procedure 15 1 1 1 . . . 4 4 4 . . . 5 5 5 P P P a a a i i i r r r C C C o o o n n n f f f i i i g g g u u u r r r a a a t t t i i i o o o n n n S S S e e e t t t t t t i i i n n n g g g In the basic pair configuration, one RV is connected to one MV. For certain operation cond...
Page 23 - array and register the volume in the Volume List.
Chapter 1 Installation Procedure 17 1 1 1 . . . 5 5 5 C C C o o o n n n t t t r r r o o o l l l V V V o o o l l l u u u m m m e e e S S S e e e t t t t t t i i i n n n g g g A control volume is used when a server issues control I/O to the relevant disk array. Select one of the logical disks connecte...
Page 25 - (3) The selected logical disk is registered in “Selected Volume List”.
Chapter 1 Installation Procedure 19 (1) Select a logical disk you want to use as a control volume from “Candidate Volume List”. (2) Click the [Add] button. (3) The selected logical disk is registered in “Selected Volume List”. Figure 1-10 Registering a Control Volume 1 1 1 . . . 5 5 5 . . . 3 3 3 S ...
Page 26 - Display screen again.
Chapter 1 Installation Procedure 20 Figure 1-12 The definition of control volume: Termination Message Screen Clicking the [OK] button closes the Define Control Volume screen and displays the Volume List Display screen again. Clicking the [Cancel] button in the Define Control Volume screen displays a...
Page 27 - belongs to Administrators group.
Chapter 1 Installation Procedure 21 1 1 1 . . . 6 6 6 V V V o o o l l l u u u m m m e e e L L L i i i s s s t t t C C C r r r e e e a a a t t t i i i o o o n n n Creation of Volume List is required before using replication operation command. A Volume List is created by the iSMvollist command with an...
Page 28 - execute the steps given below for the target volume.; Step 1. Creating MV partition; file system created.
Chapter 1 Installation Procedure 22 1 1 1 . . . 7 7 7 P P P r r r e e e p p p a a a r r r i i i n n n g g g V V V o o o l l l u u u m m m e e e When using a volume for the first time for replication operation or changing the MV partition size, execute the steps given below for the target volume. In ...
Page 29 - Step 3. Checking RV volume; delete them and place the area in unassigned state.; Step 4. Creating Volume List; Create the Volume List as follows:; Step 5. Saving disk signature; replication target disk.; Step 6. Backing up disk signature
Chapter 1 Installation Procedure 23 Step 3. Checking RV volume In Windows 2000, using [Disk Management] (Windows), check that the disk to be used as RV is in an unassigned area. If signature is not found, execute “Signature Disk” here. If RV has partitions, delete them and place the area in unassign...
Page 30 - Step 7. Setting pair; MV:10 dev001 WN; Step 9. Flushing MV file system; disk10 dev001 WN
Chapter 1 Installation Procedure 24 Step 7. Setting pair Use the Replication Management (GUI) for setting a pair. In addition, the pair setting can also be executed by using the iSMrc_pair command. By checking the vollist_data.txt that stores the Volume List information created in step 4 and the vol...
Page 31 - Step 10. Unmounting MV; after stopping the operation.; Step 11. Executing Separate; Waiting for Separate completion
Chapter 1 Installation Procedure 25 Flush Normal End 2001/02/21 11:08:14 disk10 dev001 WN \\?\Volume{822575dd-63d9-11d5-b1e0-009027520bce}\ G: Step 10. Unmounting MV Before separating MV/RV, you must create a complete static point of the MV data. The purpose of this is to write out all data that is ...
Page 32 - Step 12. Using MV; Mount MV to associate MV and file system.; Step 13. Recognizing disk on RV side; command of the ReplicationControl.
Chapter 1 Installation Procedure 26 - - Separating… Separate Normal End 2001/02/21 11:08:21 MV:10 dev001 WN \\?\Volume{822575dd-63d9-11d5-b1e0-009027520bce}\ G: RV:- dev002 WN - - Note that, if the RV access restriction has been set to Read Only (ro) when executing Separate, attempting a write opera...
Page 33 - iSM11701: Volume list is created successfully.; Step 15. Researching mount point volume name; A mount point volume name used for operation must be researched.
Chapter 1 Installation Procedure 27 Upon successful creation of Volume List, the following message appears: iSMvollist: Info: iSM11701: Volume list is created successfully. Output the Volume List data into the vollist_data.txt. iSMvollist -a > vollist_data.txt * If a logical disk name has been ch...
Page 34 - Step 1. Executing RV file system flush; Then, the following message appears and the data is flushed.; Step 2. Executing RV unmounting; Unmount RV and cancel association between volume and file system.
Chapter 1 Installation Procedure 28 1 1 1 . . . 8 8 8 P P P r r r e e e p p p a a a r r r a a a t t t i i i o o o n n n f f f o o o r r r O O O p p p e e e r r r a a a t t t i i i o o o n n n To operate the system in the Replicate state, take the following steps and re-synchronize (Replicate). The f...
Page 35 - disk11 dev002 WN; Step 3. Executing Replicate; MV:10 dev001 WN
Chapter 1 Installation Procedure 29 iSMrc_umount: Info: iSM13221: Resetting drive letter (H:) (\\?\Volume{37d84cca-2507-11d5-a0f7-00004c714491}\) has succeeded. Umount Normal End 2001/02/21 11:21:14 disk11 dev002 WN \\?\Volume{37d84cca-2507-11d5-a0f7-00004c714491}\ H: Step 3. Executing Replicate Exe...
Page 36 - Chapter 2 Operation and Maintenance; Business Server
Chapter 2 Operation and Maintenance 30 Chapter 2 Operation and Maintenance This chapter describes an example of operation using the Data Replication function, the operation procedure for replication, and the trouble-shooting for faults that may occur during operations. 2 2 2 . . . 1 1 1 O O O p p p ...
Page 38 - procedure; NET STOP ESMCommonService
Chapter 2 Operation and Maintenance 32 (2) Operation procedure Step 1. Terminating applications (backup server) To maintain data consistency, terminate or halt applications and specified services that are accessing the volume concerned. If shared folders are used on the volume concerned, cancel shar...
Page 39 - Then, the following message appears and RV is unmounted.
Chapter 2 Operation and Maintenance 33 Then, the following message appears and RV is unmounted. Umount Start 2001/02/21 12:27:02 disk11 dev002 WN \\?\Volume{37d84cca-2507-11d5-a0f7-00004c714491}\ H: iSMrc_umount: Info: iSM13221: Resetting drive letter (H:) (\\?\Volume{37d84cca-2507-11d5-a0f7-00004c7...
Page 40 - unmounting operation in step 7 will fail.
Chapter 2 Operation and Maintenance 34 Step 5. Terminating applications (business server) To maintain data consistency, terminate or halt applications and specified services that are accessing the target volume. If a shared folder is used on the target volume, cancel the sharing temporarily. If appl...
Page 41 - disk10 dev001 WN
Chapter 2 Operation and Maintenance 35 Step 7. Unmounting MV (business server) You must create a perfect static point of MV data. This is for writing the metadata of the file system completely to the disk. This is also for suppressing I/O to the logical volume to keep data consistency of MV and RV. ...
Page 42 - Then, the following message is displayed and MV is separated.
Chapter 2 Operation and Maintenance 36 Then, the following message is displayed and MV is separated. Separate Start 2001/02/21 12:23:16 MV:10 dev001 WN \\?\Volume{ce49f299-614e-11d5-b1df-009027520bce}\ G: RV:- dev002 WN - - Separating..... Separate Normal End 2001/02/21 12:23:16 MV:10 dev001 WN \\?\...
Page 43 - NET START ESMCommonService
Chapter 2 Operation and Maintenance 37 Step 10. Restarting applications (business server) Restart the applications closed in Step 5. If services were halted in step 5, restart the services by the following procedures. If services were not halted in step 5, executing of the following is not required....
Page 44 - (1) Data restoration without use of replication function
Chapter 2 Operation and Maintenance 38 Step 12. Restarting applications (backup server) Start the applications and services terminated in step 1. For the procedures to start services and share the folder, refer to step 10. Step 13. Executing backup (backup server) Use backup software to back up the ...
Page 45 - (2) Data restoration with use of replication function
Chapter 2 Operation and Maintenance 39 (2) Data restoration with use of replication function The following describes the procedures of completely restoring data using backup tape, upon failure of data file. The procedures assume that MV data file has physical or logical failure, and the tape contain...
Page 47 - When halting a service “ESMCommonService”, specify as follows:
Chapter 2 Operation and Maintenance 41 Step 1. Terminating applications (business server) Terminate or halt applications and specified services that are accessing the volume where a fault has occurred. If a shared folder is used on the target volume, cancel the sharing temporarily. (Example) Halting...
Page 48 - disk10 dev001 WN
Chapter 2 Operation and Maintenance 42 Step 3. Executing Restore from tape (backup server) Restore data from the tape to RV, using backup software. Figure 2-5 Restoring Backup Data to RV Step 4. Flushing MV file system (business server) Flush the MV file system and discard data in the file system bu...
Page 51 - disk11 dev002 WN
Chapter 2 Operation and Maintenance 45 If sharing of the folder was cancelled in step 1, specify the sharing again. If sharing was not cancelled in step 1, it is not necessary to execute the following. (Example) Sharing of shared folder NET SHARE share_name=drive_letter: path To enable the sharing o...
Page 52 - Use RV again as a backup volume.
Chapter 2 Operation and Maintenance 46 Use RV again as a backup volume. Step 14. Restarting service (backup server) Resume the applications and services that have been terminated in step 6. If the services have been halted in step 6, restart the services by the following procedure. If the services w...
Page 58 - replication and restoration is mandatory.
Chapter 2 Operation and Maintenance 52 In addition, although separating is allowed without unmounting in this step, unmounting upon replication and restoration is mandatory. iSMrc_umount -drv G: Then, the following message is displayed and MV is unmounted. Umount Start 2001/02/21 12:23:15 disk10 dev...
Page 59 - disk10 dev001 WN
Chapter 2 Operation and Maintenance 53 Step 9. Mounting MV (business server) To associate MV and the file system, mount MV. iSMrc_mount -drv G: Then, the following message is displayed. MV is mounted and can be used as a file system. Mount Start 2001/02/21 12:23:17 disk10 dev001 WN \\?\Volume{822575...
Page 62 - Shut down a server that is connected with RV.
Chapter 2 Operation and Maintenance 56 Step 1. Shutting down server (backup server) Shut down a server that is connected with RV. Step 2. Executing Separate (business server) Execute Separate on RV that is not separated and connected with the backup server. If the RV is separated already, separation...
Page 63 - inconsistency in file system.
Chapter 2 Operation and Maintenance 57 Step 5. Executing CHKDSK (backup server) In step 2, separation was executed without specifying a static point. Execute CHKDSK /F to remove inconsistency in file system. CHKDSK H: /F Step 6. Terminating applications (backup server) To maintain data consistency, ...
Page 65 - Fault; Detecting a copy fault
Chapter 2 Operation and Maintenance 59 2 2 2 . . . 2 2 2 M M M e e e a a a s s s u u u r r r e e e s s s f f f o o o r r r E E E r r r r r r o o o r r r s s s 2 2 2 . . . 2 2 2 . . . 1 1 1 E E E r r r r r r o o o r r r T T T y y y p p p e e e s s s Data replication errors can be categorized as follo...
Page 66 - Figure 2-9 An Example of the Copy Fault Occurrence Screen; Operations after recovering from a copy fault; fault; Detecting a link fault; If it occurs during Replication, it may cause a copy fault.
Chapter 2 Operation and Maintenance 60 Figure 2-9 An Example of the Copy Fault Occurrence Screen Operations after recovering from a copy fault For information on operation to recover the state of the pair where the copy fault occurred to the normal state after removing the cause of the copy fault, r...
Page 67 - Figure 2-10 An Example of the Link Failure Occurrence Screen; Operations after recovering from a link fault; failures; Take necessary actions referring to the “User’s Manual”.
Chapter 2 Operation and Maintenance 61 Figure 2-10 An Example of the Link Failure Occurrence Screen Operations after recovering from a link fault After you remove the cause of the link fault, check that the state of the path is normal in this screen. If a copy fault occurs due to this fault, refer t...
Page 68 - iSM13609: Access of specified disk was refused.
Chapter 2 Operation and Maintenance 62 2 2 2 . . . 2 2 2 . . . 4 4 4 A A A b b b n n n o o o r r r m m m a a a l l l E E E n n n d d d o o o f f f R R R e e e p p p l l l i i i c c c a a a t t t i i i o o o n n n C C C o o o n n n t t t r r r o o o l l l ReplicationControl outputs error contents to ...
Page 69 - Step 4. Restarting backup server; iSM13634: Failed to set drive letter; Step 1. Collecting volume information
Chapter 2 Operation and Maintenance 63 - When iSMrc_umount command terminates abnormally on business server - Step 1. Terminate application (backup server) Halt applications and services with programs running on server, that are referring to a volume concerned. After verifying halt of applications a...
Page 70 - mount point volume name; Step 3. Repairing the file system; Example of executing CHKDSK; (3) Illegal File System on RV Connection Server; Research method; restoration procedures.
Chapter 2 Operation and Maintenance 64 iSM13224: MV is restored. Volume Name: mount point volume name Mount Point: drive letter or NTFS folder path name Step 2. Re-setting the drive letter and remounting MV into the NTFS folder Start [Disk Management]. According to the collected MV volume informatio...
Page 71 - Figure 2-12 My Computer Screen; Restoration
Chapter 2 Operation and Maintenance 65 Figure 2-12 My Computer Screen When RV is “Not Ready” and cannot be accessed, the following message appears. If this dialog appears, RV is successfully unmounted. Figure 2-13 Media Error Message Screen If a message above does not appear and access to the volume...
Page 72 - Step 1. Executing Separate; Start the server that has been down.; Step 3. Recognizing the RV again; Not Ready state and the volumes which cannot be mounted.; Step 4. Recovering to normal operation
Chapter 2 Operation and Maintenance 66 2 2 2 . . . 2 2 2 . . . 5 5 5 D D D o o o w w w n n n o o o f f f S S S e e e r r r v v v e e e r r r M M M a a a c c c h h h i i i n n n e e e C C C o o o n n n n n n e e e c c c t t t e e e d d d t t t o o o R R R V V V When the server connected to RV has gon...
Page 73 - For all RV pairs in Replicate/Restore state, execute Separate.; Step 2. Recognizing RV again; Step 3. Recovering to normal operation; indicate missing products or products not purchased.
Chapter 2 Operation and Maintenance 67 (2) If server is restarting Execute the procedure below so that the OS to recognize the RV again. Step 1. Executing Separate For all RV pairs in Replicate/Restore state, execute Separate. If ordinary Separate fails, execute Forced Separate. Step 2. Recognizing ...
Page 74 - Collect the necessary information referring to the “User’s Manual”.
Chapter 2 Operation and Maintenance 68 2 2 2 . . . 2 2 2 . . . 7 7 7 I I I n n n f f f o o o r r r m m m a a a t t t i i i o o o n n n G G G a a a t t t h h h e e e r r r i i i n n n g g g i i i n n n t t t h h h e e e E E E v v v e e e n n n t t t o o o f f f a a a F F F a a a u u u l l l t t t Whe...
Page 75 - Chapter 3 Notes
Chapter 3 Notes 69 Chapter 3 Notes This chapter describes some notes regarding management and operations of Data Replication. 3 3 3 . . . 1 1 1 W W W i i i n n n d d d o o o w w w s s s S S S y y y s s s t t t e e e m m m V V V o o o l l l u u u m m m e e e s s s a a a n n n d d d P P P a a a r r r ...
Page 76 - Disk containing multiple partitions or logical volumes; Figure 3-1 Replicating a Disk Containing Multiple Partitions
Chapter 3 Notes 70 Data replication operation using a logical disk containing multiple partitions or logical volumes is not recommended. In ReplicationControl, when the volume to be operated is recognized from the server (operating system) and can be accessed, and if the volume contains multiple par...
Page 80 - Usual file; operation or service, an unmounting error occurs.; Oracle; considerations similar to those for usual files.
Chapter 3 Notes 74 Usual file As basic operations, first temporarily halt the operations on the MV and flush the MV cache data using the command provided by replication operation. Then, unmount the MV to release association between the file system and disks. At this time, when the MV is used from an...
Page 81 - utilized in the following operations:; On business server; even when the file system is being used.; On backup server; file system and disks.
Chapter 3 Notes 75 (3) Restoration and Data Consistency When restoring data upon failure on MV of business server, backup data existing on tape is utilized in the following operations: (i) From backup server, restore data on MV that is connected to business server via network. (ii) If tape device is...
Page 82 - same on MV and RV servers.
Chapter 3 Notes 76 3 3 3 . . . 8 8 8 A A A c c c c c c e e e s s s s s s R R R i i i g g g h h h t t t S S S e e e t t t t t t i i i n n n g g g s s s o o o n n n V V V o o o l l l u u u m m m e e e s s s Access right settings on folders and files in volumes used in MV or RV are reflected on RV (or ...
Page 84 - backup copies in a tape unit.
Chapter 3 Notes 78 (7) Upon failure of unmounting, CHKDSK /F /X is executed with mount point volume name specified. “\” at the end of mount point volume name must be omitted in the name specified for CHKDSK. (8) If you execute replication or disk operation from the terminal service client, the opera...
Page 85 - command until the RV is mounted by the iSMrc_mount command.
Chapter 3 Notes 79 • On Windows 2000, when an RV is unmounted, the RV access restriction is changed to Not Ready. Accordingly, when a volume in a multi-partition configuration is unmounted, all volumes (partitions) on the relevant disk cannot be read or written. After that, another partition on the ...
Page 86 - Index
80 Index A abnormal end ............................................................... 62 abnormal end of iSMrc_restore command ................... 63 abnormal end of iSMrc_umount command.................. 62 abnormal suspend ........................................................ 59 access contro...