Catalogs >
Oracle >
solaris-zfs

solaris-zfs
3Pages

Catalog excerpts

ORACLE DATA SHEET ORACLE SOLARIS ZFS A BETTER SAFER WAY TO MANAGE YOUR DATA KEY FEATURES • No silent data corruption ever. The Oracle Solaris ZFS self healing feature automatically repairs corrupt data. • Rock-solid data integrity. All data is protected by 256-bit checksums and data consistency is maintained at all times. • Mind-boggling scalability: 128-bit file system, 16 billion billion times the capacity of 32- or 64-bit file systems • Breathtaking speed: proven cutting edge technologies combine to optimize performance. • Near-zero administration: complicated storage administration is automated and simplified, reducing administrative overhead by up to 80% • Built-in data services: encryption, compression, deduplication, infinite snapshots, clones, replication, • Seamless integration of data management protocols, including NFS, CIFS, and iSCSI. Anyone who has ever lost important files, run out of space on a partition, spent weekends adding new storage to servers, tried to grow or shrink a file system, or experienced data corruption knows that there is room for improvement in file systems and volume managers. Oracle Solaris ZFS is designed from the ground up to meet the emerging needs of a general-purpose local file system that spans the desktop to the data center. The Future-Proof File System Oracle Solaris ZFS offers a dramatic advance in data management with an innovative approach to data integrity, near-zero administration, and a welcome integration of file system and volume management capabilities. The centerpiece of this new architecture is the concept of a virtual storage pool, which decouples the file system from physical storage in the same way that virtual memory abstracts physical memory, allowing for much more efficient and flexible use of storage devices. In Oracle Solaris ZFS, space is shared dynamically among multiple file systems from a single storage pool and is parceled out of the pool as file systems request it. Physical storage can be added to storage pools dynamically without interrupting services, providing new levels of flexibility, availability, and performance. And in terms of scalability, the theoretical limits of the 128-bit ZFS address space are truly mind-boggling: 16 exabytes (16!10 raised to the power of 18 bytes) being the maximum size of a single file. Oracle Solaris ZFS implements an improvement on RAID-5, RAID-Z3, which uses parity, striping, and atomic operations to ensure reconstruction of corrupted data even in the face of three concurrent drive failures. It is ideally suited for managing industry standard storage servers. Cutting-Edge Data Integrity Oracle Solaris ZFS combines proven and cutting-edge technologies, such as copy-on-write and end-to-end checksumming. Data is always written to a new block on disk before changing the pointers to the data and committing the write. And, because the file system is always consistent, time-consuming recovery procedures like fsck are not required, even if the system is shut down in an unclean manner. Copy-on-write also enables administrators to take consistent backups or roll data back to a known point in time. Oracle Solaris with Oracle Solaris ZFS is the only known operating system designed to provide end-to-end checksumming for all data. Oracle Solaris ZFS constantly reads and checks data to help ensure that it is correct, and if it detects an error in a mirrored pool, the technology can automatically repair the corrupt data. This relentless vigilance on behalf of availability protects against costly and time-consuming data loss (even previously undetectable silent data corruption). High Performance This radical new architecture optimizes and simplifies code paths from the application to the hardware, producing sustained throughput at exceptional speeds. New block allocation

Open the catalog to page 1

ORACLE DATA SHEET algorithms accelerate write operations, consolidating what would traditionally be many small random writes into a single, more efficient sequential operation. Additionally, Oracle Solaris ZFS implements intelligent prefetch, performing read-ahead for sequential data streaming, and can adapt its read behavior on the fly for more complex access patterns. To eliminate bottlenecks and increase the speed of both reads and writes, Oracle Solaris ZFS stripes data across all available storage devices, balancing I/O and maximizing throughput. And, as disks are added to the storage...

Open the catalog to page 2

ORACLE DATA SHEET configurations that include flash technology for both greater performance and cost effectiveness. Compatibility Applications do not need to be changed or modified to take advantage of the industry-leading capabilities of Oracle Solaris ZFS. It employs familiar POSIX interfaces, and the existing storage infrastructure—device drivers, storage fabric, and devices—works without requiring changes. For applications that prefer to operate directly on block devices, Oracle Solaris ZFS provides the zvol volume emulator, which delivers all of the benefits of transactional integrity...

Open the catalog to page 3