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Because IBM i integrated server support support combines two operating systems (Windows and IBM i), you can choose to manage your backups by using either i5/OS or Windows utilities or a combination of both.
Integrated file save/restore from IBM i:
File-level backup and recovery of Windows data is enabled through IBM i. This support is enabled through the IBM i NetClient file system (QNTC) of the Integrated File System. This function enables customers to incorporate incremental saving of files and the Windows registry associated with a network server description into their existing IBM i backup procedures. In addition, the registry and files saved through this method can be individually restored if needed. Saving of Windows server files in this manner can be used with full IBM i system save procedures for disaster recovery.
Note: Here are some tips to achieve optimal file-level backup performance:
- The TCP/IP send/receive buffer sizes need to be much larger than the default. It is recommended to use no smaller than 65535. The default is 8192. The maximum size is 8 MB, which is much larger than needed. Change these values as follows:
- Run command
CFGTCP
- Select option 3 "Change TCP/IP attributes"
- Modify TCP receive and send buffer sizes to 65535
- Press Enter to apply the changes
- The changes take effect immediately.
- Keep your Windows servers at the latest IBM i server integration service pack level.
- The i5/OS QRETSVRSEC system value must be set to '1':
CHGSYSVAL SYSVAL(QRETSVRSEC) VALUE(1)
- Do not use QSECOFR as the user profile for running the SAV or RST command - it will likely not work. Use some other user profile.
- The user profile doing the backup or restore must have administrator authority on the server being backed up or restored. This may be accomplished by making the user a member of the windows "administrators" group. If the target server is a domain member server, then you can make the user a member of the domain's "Domain Admins" group. The "Domain Admins" group is made a member of the local "administrators" group when the server joins the domain, indirectly making the user a member of the "local" administrators group.
Full IBM i backup:
A full IBM i system backup automatically backs up any IBM i integration with BladeCenter® and System x™ components that are on that system (unless someone has changed the backup and removed those components). To take a full system backup:
1. On the IBM i command line, type GO SAVE and press Enter.
2. On the Save screen that appears, choose:
Option 21 to save the entire system
Option 22 to save just system data
Option 23 to save just user data
Windows operating system and registry:
The Windows operating system and the files required to start the Windows Server are located on the C and D drives of the server. The server storage spaces that contain these drives are in IFS directory QFPNWSSTG on IBM i. The architecture of the integrated server solutions allows you to save these drives on IBM i and restore them in case of damaged or deleted files. For example, to replace a deleted file or a damaged registry, you can restore the Windows system drive. You can effectively use this option to eliminate the BOOT disk, RDISK and registry backups that you would take with a PC-based Windows Server. Daily backup of the system drive is a good idea. You can save these files to tape or to a save file that is stored on IBM i. To save them to a save file, use the SAV command with the compression option enabled. For example:
SAV DEV('/QSYS.LIB/BACKUP.LIB/SYSDRIVE.FILE')
OBJ('/QFPNWSSTG/nwsdname1') DTACPR(*YES)
Note: With i 6.1, you can perform the above SAV command while the server is active by adding the following parameters to the SAV command:
SAVACT(*YES) SAVACTOPT(*NWSSTG)
This takes advantage of the storage space snapshot support. For prior releases, the NWSD must be varied off prior to running the SAV command. See the backup and recovery topics listed at the top of this page.
User data (using user-defined storage spaces):
On IBM i you can save each user storage space with this command:
SAV DEV('/QSYS.LIB/TAP01.DEVD') OBJ(('/QFPNWSSTG/stgspc'))
Prior to i 6.1: To save a storage space in a user auxiliary storage pools, use this command:
SAV DEV('/QSYS.LIB/TAP01.DEVD')
OBJ(('/QFPNWSSTG/stgspc')('dev/QASPnn/stgspc.UDFS'))
Note: With i 6.1, you can perform the first SAV command listed above while the server is active by adding the following parameters to the SAV command:
SAVACT(*YES) SAVACTOPT(*NWSSTG)
</ p>This takes advantage of the storage space snapshot support. For prior releases, the NWSD must be varied off prior to running the SAV command. You cannot restore individual files from this backup. If you need to restore files or directories individually, use the file-level backup method.
User data (using individual files):
If you need the ability to restore individual files, use one of these options:
- Integrated file save/restore from IBM i.
- Windows Backup utility. On Windows, you can find the Backup icon in the Start menu under the Administrative Tools program group. See Windows documentation for information about using this utility.
Note: This method can be combined with the dynamic disk drive unlinking support (See Unlinking integrated server disks in the Information Center). This provides an alternative method to include file-level backups of Windows data with IBM i backups.
- Use iSeries NetServer to copy files from Windows Server into the i5/OS Integrated File System. Then use a suitable backup utility (for example, WinTAR) to save the files to the network drive.
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