QUADStor Storage Virtualization Software
With QUADStor Storage Virtualization, administrators create virtual LUNs (VDisk(s)) which are thin provisioned. A VDisk with a capacity up to 64 TB can be created irrespective of the available capacity in the underlying storage. As underlying storage capacity is utilized, additional capacity can be provisioned on a need basis
SAN / NAS Data Deduplication
With fast inline deduplication algorithms, duplicate data present in incoming write requests is identified and never stored. Duplicate data is eliminated on the fly with the option of byte per byte verification of duplicate data. With archival data, storage utilization can be reduced by as much as 90% and by about 40% with primary data. Read more
File-System Independent Primary Storage Data Deduplication
Data deduplication is provided at the disk layer and hence file systems created on top of the VDisk automatically support data deduplication. Data deduplication is transparent to the file system whether Ext3-4, NTFS etc.
Data are deduplicated across VDisks which basically means that duplicate data is identified from all VDisks and not just the VDisk which received write data.
Block level mirroring (Synchronous mirroring) and High availability
Support for synchronous mirroring of data between nodes with support for active-active failover
Shared Storage Clustering and High Availability (Enterprise Edition Only)
Support for clustering of nodes for high availability and active-active failover
Data Mirroring and Data Cloning
Clone virtual disks locally withing seconds and also mirror virtual disks to another machine
Storage utilization is reduced even further by enabling data compression. Compression rations between 1:2 and 1:4 can be achieved.
Easy of Management
Configuring storage, creating VDisks etc can be easily performed via a simple, easy to use HTML GUI. Tasks can be performed by just a few clicks.
VDisks can be accessed via Fiber Channel, iSCSI or locally. Locally accessible VDisks can be used to export CIFS and NFS shares.
vStorage APIs for Array Integration / VAAI
Support for vStorage APIs for Array Integration / VAAI has is now available. VAAI together with data deduplication gives more power to the storage array and reduces load on servers and network. Read more
Windows Server 2012 failover clusters
QUADStor synchronous mirroring technology combined with Server 2012 failover clustering technology for twice the benefits - High Availability Servers with High Availability Storage
Windows Server 2012 offloaded data transfers
With ODX support copy operations are offloaded to the storage array thereby reducing network bandwith requirements and improving IO performance significantly. Combined QUADStor's support for ODX technology and QUADStor's data deduplication technology, copy operations performance is increased ten-fold.
Also see: http://www.quadstor.com/offloaded-data-transfers-odx.html
Runs on FreeBSD and Linux
QUADStor Storage Virtualization can be easily installed on FreeBSD, RHEL/CentOS, SLES and Debian
QUADStor Storage Virtualization can be setup in a matter of few minutes.
Virtual Tape Library (VTL)
What is a Virtual Tape Library ? An Introduction
Tape technology remains the most cost effective backup solution till date. With current tape technology, tape media have a lifetime of 30 years or more and therefor are the number one choice for data archival. In recent years disk based backup gained popularity due to a drop in disk prices and due a lesser need for manual intervention. The performance of disk based backup is generally consider faster and individual file restores from disk are significantly faster due to faster seek times.
A virtual tape library (VTL) is a disk based backup system which appears to the backup host as a real tape library system. Backup streams are however written to and restored from disk. The biggest advantage of a VTL over other disk based backup solutions is its seamless integration into an existing tape backup infrastructure. Backup applications, policies, licenses etc need not change due to a VTL emulating an existing tape library system.
Benefits of a Virtual Tape Library (VTL) system
Improved backup and restore times
Disk based backup offers faster backup and restore times. Sequential access of data is still maintained by VTL system by writing the backup data to disk in a sequential manner. When compared to other disk-to-disk backup (D2D) solutions, virtual tape libraries are high performance solutions with access to the virtual devices over the storage area network (SAN) while a D2D system utilizes a NAS network. QUADStor VTL devices can be accessed over iSCSI, Fiber Channel (FC) and an InfiniBand network.
Reduced tape media handling
Handling of tape media is greatly reduced, hence lesser manual intervention is required. Only data needed for archival purposes would have to be transferred to a physical tape, reducing the amount of tape media that is eventually needed.
Easy integration and Interoperability
Tape libraries and drives from leading manufacturers are emulated. From a backup application’s point of view nothing needs to change, and to it there isn’t a difference between a virtual tape and a physical tape library. The integration of the VTL solution into the backup environment is seamless and non‐disruptive.
Multiple VTL instances
Multiple VTL instances can be created and one or more VTL instances can be dedicated to a host. Each backup server would direct its backups to its own VTL instance, removing the need for tape library sharing and backup stream multiplexing. Also multiple simultaneous backup streams improve overall backup throughput.
Dynamic disk allocation
Storage is allocated to a virtual cartridges on demand removing the need for pre allocation of disk space. Additional disk storage can be configured at a later point of time to increase the available storage capacity. Additionally disk storage can be categorized into storage pools and virtual cartridges can be associated with a storage pool. For example a WORM pool can be created for virtual cartridges with WORM property enabled.
The VTL extended edition supports inline data deduplication with support for backup data streams from leading backup applications. With data deduplication, store terabytes of backup data for a fraction of the storage cost.
Data compression decreases disk capacity requirements with translates to lesser storage costs. Data can be compressed prior to storing on disk, the compression algorithm used is fast and can achieve 2:1 compression ratios.
With the VTL extended edition replication virtual tape data to one or more remote VTL servers for disaster recovery. Auto replication to a remote server is supported for automatic disaster recovery management
Data from a virtual tape can be easily exported to a physical tape either manually or can be triggered by backup application. Storage pool thresholds enable retention of exported virtual tape data for certain periods of time (tape caching)
QUADStor's Virtual Tape Library
QUADStor Virtual Tape Library software is a high performance VTL solution emulating tape libraries and drives from leading hardware vendors.
|Operating System||RHEL/CentOS 5.x, 6.x, Debian 6.x, 7.x, SLES 11, FreeBSD 8.x, 9.x|
|Number of Virtual Tape Libraries||Up to 128 VTLs or standalone virtual drives per system|
|Number of Virtual Cartridges||Up to 60000 virtual cartridges per system|
|Host Connectivity||iSCSI, Fiber Channel (FC), InfiniBand and local SCSI access|
|Scalar i40/80 Series|
|IBM||3583 UltraScalable Library|
|3584 / TS3500|
|Overland Storage||Neo 2000/4000/8000 Series|
L20, L40, L80,
L120, L180, L700
|HP||DLT VS80, VS160|
|SDLT 220, 320, 600|
|Ultrium 232 (LTO-1)|
|Ultrium 448, 460 (LTO-2)|
|Ultrium 960 (LTO-3)|
|Ultrium 1840 (LTO-4)|
|Ultrium 3280 (LTO-5)|
|Ultrium 6250 (LTO-6)|
|IBM||3580 Ultrium 1|
|3580 Ultrium 2|
|3580 Ultrium 3|
|3580 Ultrium 4|
|3580 Ultrium 5|
|3580 Ultrium 6|
|Quantum||SDLT 220 (SuperDLT I)|
|SDLT 320 (SuperDLT II)|
|StorageTek||3580 Ultrium 5|
|T9840A, T9840B, T9840C, T9840D|
|T10000A, T10000B, T10000C|
|Vendor||Version||Inline Deduplication Support|
|CA ARCServe||15.x, 16.x||Yes|
|CommVault Simpana||9, 10||Yes|
|EMC NetWorker||7.x, 8.x||Yes|
|Symantec NetBackup||6.x, 7.x||Yes|
|HP Data Protector||7.x, 8.x||Yes|
|Symantec BackupExec||10.x, 11d, 12.5, 2010, 2012||Yes|
|Data Protection Manager||2010, 2012||Yes|
|Quest/BakBone Netvault||7.x, 8.x, 9.x, 10.x||Yes|
|IBM Tivoli Storage Manager||5.x, 6.x, 7.x||Yes|
|Veeam Backup and Replication||7.x||Yes|