Features & Highlights
StorageDNA’s DNAfabric software has allowed its customers to build extensive active archives, as well as maximize performance through many generations of LTO Technology. Now DNAfabric with the latest LTO technology is here to take archives and workflows to the next level, with numerous enhancements, features and implemented customer requests.
AUTOMATED DATA MANAGEMENT
- With growing amounts of data, protecting and ensuring data integrity has become a major challenge. DNAfabric is designed to make the process of managing large quantities of data simple, requiring less administration, making workflows less error prone.
LTO MEDIA MIGRATION
- LTFS migration tool that allows any LTFS tape to be automatically migrated to newer generation LTO tapes.
- A new alerts dashboard is designed to keep an administrator updated regarding any issues with tasks and/or hardware. This provides a single view to the entire system.
- Based on end-user requests and feedback, DNAfabric contains numerous additional enhancements.
- With DNAfabric, one or more drives can be assigned to scheduled verification of tapes. Automated verification makes the process of ensuring data integrity on LTO simpler and less error prone.
- Once scheduled, DNAfabric auto-verifies tapes using an assigned drive. Tapes are picked based on a filter that can be set by the administrator that allows specific tape serials to be included. This allows admins to setup verification jobs that match currently running archive jobs and tapes. Additionally, it allows multiple drives to be dedicated to perform verification in parallel across different sets of tapes for added efficiencies.
VERIFICATION W/ AUTO-CORRECTION, RE-COPY
- Verification ensures data integrity by re-reading files from LTO and then comparing the calculated checksum against the source checksum. These verification jobs often uncover errors. These errors can include:
- Files in catalog but not on tape
- File checksum mismatch between catalog and tape
- File size incorrect in catalog versus tape
- Normally, these errors have to be manually corrected by deleting catalog entries and recopying files. Previously the process of correcting errors would require StorageDNA support intervention.
- Now with DNAfabric, the process of detecting and fixing verification errors is automated. DNAfabric can detect any of the above errors and then perform a re-copy of the source media to LTO while making the appropriate changes to the catalog.
- All errors and corrections are reported to the dashboard.
- With DNAfabric, tape pooling functionality brings the ability to setup tape pools that jobs can automatically pull tapes from. Additionally, tape pools can be setup with tape serial-based filters for precise usage of LTO resources.
- Tape pools functionality eliminates incomplete jobs due to running out of tape capacity. With tape pooling, as long as there are free tapes in the assigned pool, tapes will be automatically used as needed.
- Tape pools is designed to enable a more “set-and-forget” approach to data archiving.
DATA PROCESSING ALERTS
- A key element to effective data management is having relevant and up-to-date information. DNAfabric’s dashboard now includes key alerts related to events such as system startup, bulk formatting, tape full, verification, duplication and more. This allows an admin to stay informed about key events without having to manually dig through individual job events, alerts or logs.
SYSTEM WARNINGS/FAILURE ALERTS
- The archive middleware is the place where admins discover failed data management tasks. Often these are not due to software issues, but instead caused by hardware including LTO drive/library related errors, source/target NAS/SAN issues etc.
- The purpose of DNAfabric’s System Warnings feature (also displayed in the dashboard) is to provide the administrator detailed information about not just the high-level cause of an issue, but also the hardware/system fault related to the issue.
- This allows the administrator to more effectively diagnose and fix problems.
Customers have built extensive archives using older generation LTO tapes. With each new generational release of LTO, many customers are looking for a way to migrate their content to latest generation tapes. DNAfabric makes the process of migrating content on tapes automated and simple.
- Multiple migration processes can be setup. Each migration process needs 2 x LTO drives. The source drive must support the source media generation (LTO-5/6) and the target drive can be any newer generation LTO. Once setup, DNAfabric automates the process of copying the content.
- Tapes can be migrated at an archive or at a tape level. This allows admins to specify a current archive (and all its related tapes) for migration or perform a migration by specifying the tapes. In either case, DNAfabric creates a target archive that receives the catalog entries for the migrated data. The data itself is copied to the target LTO tape(s).
- The new archive, along with the new LTO tape(s) is a new fully functioning DNAfabric archive. The older catalog and tapes can be exported and stored for offsite disaster recovery.
- During migration, data is automatically compacted between older generation LTO to newer generation LTO tapes. This results in an efficient compacting of an archive to higher capacity LTO tapes.
- All migration activities are in turn reported to the dashboard.
- LTFSCK or filesystem checking a tape is a common task required when the tape does not mount due to a corruption (e.g. due to a power loss). In this case, admins can use the web UI-based LTFSCK feature to auto-correct the tape without requiring a StorageDNA support call to assist with this process.
FORMAT W/ CATALOG REMOVAL
- Format now allows you to re-format tapes and automatically delete associated catalog entries as part of the format process. This allows users to more easily re-use tapes and to re-copy their files.
- Ability to import LTFS format tapes written with any 3rd party software. While this feature was available as a command line option, it is now available via DNAfabric’s web interface.
- Import performs a basic catalog create and additionally creates a checksum as well. This provides an easy workflow for importing tapes into the central DNAfabric catalog.
TAPE DISPLAY FILTER
- Admins have the ability to filter the tape view in the My Tapes tab by additional filters. This includes the following:
- Verified Tapes
- Client/Archive Manager
- Tape Generation
- Serial Name Filter
- This allows admins to quickly get a list of tapes without having to browse every tape in the tape list.
NON-SDNA FILE STRUCTURE
- DNAfabric creates a special folder structure on LTO/LTFS tapes that allows more efficient tracking of files. However, there are times when end users require a folder structure that does not have the added DNAfabric format.
- Now, if the option is enabled, DNAfabric can create a non-SDNA directory structure on the tape in addition to the DNAfabric format. This enables both SDNA and non-SDNA to co-exist on the same tape.