Backup and Restore Practices for Sun Enterprise Servers


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After the MD5 binaries are installed, you can use them to verify the integrity of executables on the system through the Solaris Fingerprint Database.

Manual Backup and Restore - Backup and Restore Practices for Sun Enterprise™ Servers [Book]

We strongly recommend that you install these optional tools, and use them with the MD5 software. These tools simplify the process of validating system binaries against the database of MD5 checksums. The Solaris Security Toolkit version 0.

The Toolkit focuses on Solaris OE security modifications to harden and minimize a system. Hardening means modifying Solaris OE configurations to improve the security of the system. Minimization means removing unnecessary Solaris OE packages from the system, thus reducing the components that must be patched and made secure. Reducing components potentially reduces entry points to an intruder. However, minimization is not addressed, recommended, or supported on Sun Enterprise SSPs at this time. The hardening steps do not disable console serial access over SSP serial ports.

The names of these directories are based on the date and time the run is initiated. Modifying the files can corrupt the contents and cause unexpected errors when you use Solaris Security Toolkit features such as undo. You can undo arun, or series of runs, with the jass-execute -u command. For example, on a system where two separate Toolkit runs are performed, you could undo them by using the following command:. Refer to the Toolkit documentation for details on the capabilities and options available in the jass-execute command.

In secured environments, and particularly in those organizations where different administrators are responsible for different domains, it is beneficial to have a separate and more restrictive account. This account is referred to as the domain administrator. Create domain administrator accounts to establish restricted domain administrator accounts on each SSP.

Domain administrators use these accounts to access the console and any other SSP domain-specific functionality for a domain by logging into the appropriate account as a domain administrator. This step ensures that the administrator has to enter a new password immediately after logging into the account for the first time. Use unique user ids uid for each account as well. For some environments, you might want to implement host-based firewalls on the Sun Enterprise SSPs.

Host-based firewalls control a systems network access to protect against malicious misuse. These firewalls provide another layer of protection for the SSP against network-based attacks. For customers requiring the most-secure and best-instrumented configuration, we recommend installing and implementing host-based firewall software on the SSPs. The goal of this recommendation is to provide additional controls to the services that must be run on the SSPs. The following information provides an example of how to install a host-based firewall on the SSP.

Choose a firewall software product that best fits your environment. Additionally, adapt the rule sets to fit the firewall product you choose. For example purposes, we test a SunScreen 3. For more information about SunScreen 3. Our configuration is based on a two-domain Sun Enterprise system. The firewall software allows traffic to flow freely between the SSPs and the domains on any management segment.

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Only certain traffic is allowed to originate from the domain destined for the SSPs. Secure Shell is the only one permitted to access the SSP over these production network segments. No other protocols may access the SSPs. Of course, the SSPs can request information as appropriate. In our sample configuration, we propose rulesets that are point-to-point for all authorized systems. Because the rulesets explicitly define the source and destination of each permitted data stream, unauthorized IP addresses are not able to communicate with any of the authorized devices.

The proposed firewall rulesets deny many of the protocols that may have been used to manage SSPs, including some domain installation capabilities from the SSPs. Denying these services enforces domain separation in the architecture. After the storage is mounted, hypervisor is instructed to configure and register with virtual environment restored VM using the VM data files located in virtual storage At stage 3, restored VM is started. Once the operating system OS inside restored VM fully boots up and is running, users can start accessing applications running in the VM normally, while the VM is running from the backup file.


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At stage 4, a restore operator performs migration of restored VM disk image and data files from virtual storage to production storage , using one of the methods described above with reference to FIGS. Depending on the method and options available to user with given hypervisors and , this process can be initiated immediately and have no impact on running applications thus resulting in no downtime, or can be postponed to the next scheduled maintenance windows and result in some downtime limited to a maintenance window. Once the operating system OS inside replica VM fully boots up and is running, users can start accessing applications running in the VM, which is now running from normal production storage.

As would be apparent to one of skill in the relevant art s , the methods and systems described herein to perform fully automated instant recovery without requiring complete backup extraction or repetitive manual operations are much more efficient than manual recovery techniques or systems which require complete backup extraction in order to restore data objects from image level backups.

More particularly, flowchart illustrates the steps by which an instant VM recovery from an image level backup recovery is performed, according to an embodiment of the present invention. Note that the steps in the flowchart do not necessarily have to occur in the order shown. The method begins at step In an embodiment, backup storage is backup files storage In accordance with an embodiment, the image level backup was run with knowledge of what VMs are needed for a subsequent restore and recovery.

According to an embodiment, backup storage may be full image backup file storage described with reference to FIG.


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As would be appreciated by one of skill in the relevant arts, backup storage may be one or more file servers, Network-attached storage NAS , a SAN, disk arrays, optical jukeboxes, or other storage devices. In step , restore parameters are received. The restore parameters may include one or more of an image level backup file location, backup file entities to be restored in cases when a backup file contains multiple image backups, and a recovery point to restore.

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According to an embodiment, the restore parameters are received from a restore operator console where an operator specifies restore parameters. In an embodiment of the invention, a recovery point can be a specific point in time, such an hour, minute or second of a day the backup was created. Alternatively, the recovery point can be a range of times or a date. The selected recovery points received in step depend upon the frequency of full and incremental backups taken.

For example, in environments where fall image level backups are taken daily and incremental backups are taken hourly, the granularity of recovery points will be limited to selected hours of the day corresponding to the incremental backups. An exemplary interactive interface for receiving restore parameters described below with reference to FIGS. According to an embodiment of the present invention, the interface shown in FIGS. After receipt of the restore parameters, the method proceeds to step In step , virtual storage is started.

In an embodiment, step is performed when restore operator console initializes virtual storage by starting a storage service or a process, and attaches corresponding image level backup file s from backup files storage or local storage not shown. After virtual storage is started, the method proceeds to step In step , a data conversion engine starts. This engine presents the contents of backup files on virtual storage for example, by publishing files structure of files stored in backup.

Depending on selected restore point, reading data from multiple backup files located on backup storage may be required. For example, content of first data block can be read from a fall backup file, whereas second data block can be read from an incremental backup file.

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In an embodiment, in cases when the full image level backup files contain multiple image level backups, the multiple image level backups may be viewed as separate entities in UI and on virtual storage For example, in UI , multiple image level backups may be displayed as multiple elements, while virtual storage may contain multiple folders, each corresponding to and containing files of the specific VM. In one embodiment, after the data conversion engine translates the backup file contents, it presents the contents to hypervisor as a regular network attached storage showing all VM files located in the backup file.

Step enables greatly reduced times for VM recovery because instead of extracting an entire backup file, only requested data blocks are extracted, and only at the time they are requested i. The exposed images residing in the backup files remain read-only during the method illustrated in flowchart Thus, in one embodiment, all required virtual disk changes due to disk write operations are redirected to temporary storage using native hypervisor functionality if such functionality is provided by a specific hypervisor Alternatively, all required virtual disk changes due to disk write operations may be redirected to available storage using virtual storage for example, in cases where hypervisor lacks functionality to redirect virtual disk changes.

After the translation of selected portions of the image level backup is performed, and the backup file content list is available, the method proceeds to step In step , virtual storage is attached to hypervisor In accordance with an embodiment of the invention, this step can be performed when hypervisor configuration commands are received via restore operator console For example, an operator, using UI within restore operator console can issue the corresponding hypervisor configuration commands.

Step is performed without making any changes to the backup file accessed in step In this way, all virtual disk data changes inflicted during the instant recovery method is performed are stored in changes storage After virtual storage is attached to hypervisor , the method proceeds to step In step , restored VM is configured, registered with a virtual environment, and launched. In cases when image-level backup file includes VM configuration files, data from these files can be used to ensure that VM is registered in the infrastructure with the same settings e.

According to an embodiment, restored VM is configured in a way so that the virtual disk files refer to corresponding files in virtual storage Once the restored VM is configured, registered and launched, the method proceeds to step In step , a determination is made as to whether restored VM has been migrated to production storage In this step, restored VM continues to run for as long as required, while the recovery operator plans and execute the strategy of moving VM disk images and other data files to production storage If it is determined by an operator or a monitoring program that restored VM has been migrated to production storage , control is passed to step If it determined that migration is not complete, step is repeated.

In step , the hypervisor configuration is cleaned up.

Backup and Restore Practices for Sun Enterprise Servers Backup and Restore Practices for Sun Enterprise Servers
Backup and Restore Practices for Sun Enterprise Servers Backup and Restore Practices for Sun Enterprise Servers
Backup and Restore Practices for Sun Enterprise Servers Backup and Restore Practices for Sun Enterprise Servers
Backup and Restore Practices for Sun Enterprise Servers Backup and Restore Practices for Sun Enterprise Servers
Backup and Restore Practices for Sun Enterprise Servers Backup and Restore Practices for Sun Enterprise Servers
Backup and Restore Practices for Sun Enterprise Servers Backup and Restore Practices for Sun Enterprise Servers
Backup and Restore Practices for Sun Enterprise Servers Backup and Restore Practices for Sun Enterprise Servers
Backup and Restore Practices for Sun Enterprise Servers Backup and Restore Practices for Sun Enterprise Servers

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