Shivasol Technologies

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As per business is concern, In your Infrastructure data is the most important part. To protect and secure your valuable data, at lowest possible cost, we recommend the trouble free opensource NAS / Data Storage Implementation with either new or existing desktop/server hardware.

 *Prerequisites for NAS

Opensource NAS is enterprise-class storage software, designed with data protection as its primary objective, and the hardware you select plays an important role in helping it achieve that. Opensource NAS is designed to be installed on commodity x86 hardware, and below are basic guidelines for designing your very own storage system, from bare minimum requirements for a functional system to full fledged business-ready hardware design.

*Minimum Hardware Requirements:

These specifications will suffice to get a small Opensource NAS install running reliably with moderate performance for a few users.

  • · Multi core 64-bit* processor (Intel strongly recommended)
  • · 8 GB* Boot Drive (USB Flash Drive suffices)
  • · 8 GB* RAM
  • · At least 1 direct attached disk (Hardware RAID strongly discouraged)
  • · One physical network port
  • Your unused hardware can also be used ( Subject to inspection by our support team )

*Recommended Minimum Hardware:

Open source NAS device will have the resources to run third party services and provide respectable performance.

  • Multicore 64-bit processor
  • 16GB Boot Drive (USB Flash Drive suffices)
  • 16GB (ECC Recommended)
  • At least 2 direct attached disks (Hardware RAID strongly discouraged)
  • Drives designed for NAS
  • At least one physical network port
  • For best results, see FreeBSD Hardware Compatibility List

*Advantages of NAS SERVER over simple NAS

  • Adding Storage Space
  • Efficient Data Transfer and Reliable Network Access
  • Ease of Accessibility from Multiple Locations
  • Sharing Capabilities
  • Protecting Small Networks of Data
  • Automatic Backing Up of Files
  • Fast Configuration with Low Complications
  • User authentication
  • AD Integration

File Sharing

File sharing is what Open source NAS does best. Every major operating system is supported with SMB/CIFS (Windows file shares), NFS (Unix file shares) and AFP (Apple File Shares) as well as FTP, iSCSI (block sharing), WebDAV and other methods of sharing data over the network are available. iSCSI also supports VMware VAAI, Microsoft ODX and Microsoft Windows Server 2008 and 2012 R2 Clustering.

Most operating systems, including Windows, Mac OS X, many Linux distributions, and PC-BSD® can connect using SMB shares with little or no additional configuration needed on the client side. Most Unix-like operating systems support connecting with NFS out of the box, and free clients are widely available. AFP is primarily used by Mac OSX and is well suited for a network environment that only connects with Macintosh clients. Opensource NAS® also supports Time Machine backups.

Web Interface

If Open source NAS has one goal, it’s simplifying complex administrative tasks for as wide a user base as possible. Every aspect of a Open source NAS system can be managed from a Web User Interface. A setup Wizard further simplifies configuration at installation time or later in the setup process. Volume creation, or the setting of permissions on individual shares or performing software updates, can be done without missing a critical step or encountering a silent failure.

Of course, the Open source NAS Team knows we can’t think of everything. Many services have advanced configuration options available from the Web User Interface that is available in advanced menus. The full power of the FreeBSD shell environment is also available just a click away or through SSH. Ultimately, Open source NAS makes NAS deployment easier than ever but doesn’t get between you and the solution you need.

Data Protection

ZFS is designed for data integrity from top to bottom. RAID-Z, the software RAID that is part of ZFS, offers single parity protection like RAID 5, but without the “write hole” vulnerability thanks to the copy-on-write architecture of ZFS. The additional levels RAID-Z2 and RAID-Z3 offer double and triple parity protection, respectively. A software mirror option is also available. The Opensource NAS Volumes screen lists each possible parity arrangement based on the number of disks you select when creating a new volume.

Every ZFS filesystem is also verified with checksums from top to bottom to ensure data integrity. If inconsistencies are found, parity blocks can be used to repair corrupt data. A regular scrub is turned on by default and can be rescheduled or configured from the web interface.


Thanks to ZFS, snapshots of the entire filesystem can be made and saved at any time. As long as a snapshot exists, administrators can access files as they were when the snapshot was made.

Snapshots can be made on a one-off basis or scheduled as a cron job from the web interface. At any time, the entire filesystem can be rolled back to the most recent snapshot. Older snapshots can be cloned and accessed to recover data from that version of the filesystem. From the web interface, users can see how much space a particular snapshot is occupying on the volume and delete, clone, or roll back to individual snapshots as needed.


ZFS Snapshots are more than just local backups – they can be used to create remote backups as well. Replicating snapshots of the filesystem to a remote ZFS filesystem creates a complete duplicate there. Furthermore, additional snapshots of the same filesystem can be sent incrementally, reducing the size of each backup to the changes that were made between snapshots. In case of catastrophic damage to a local ZFS filesystem (such as disk failure in excess of parity protection or irrecoverable log device failure), any backed-up snapshot can be sent to a new ZFS filesystem, recovering all data up to that backup.


Opensource NAS is the first and only open source project to offer encryption on ZFS volumes! A full-volume encryption option is available during volume creation, providing industry standard AES-XTS encryption which can be hardware-accelerated (when the processor has AES-NI capability).

Encrypted volumes can only be read by Opensource NAS systems in possession of the master key for that volume. The user can optionally create a passphrase to add an additional layer of protection for when the whole system is stolen.

Encryption allows for confidence when retiring and recycling hard drives because the drives no longer need to be wiped provided the master keys are obliterated.

Backup Services

Windows Backup


Apple Time Machine


Tuesday, November 30, 2021