While intended for small offices and professional home users, the ioSafe 1019+ has many of the same features found on Synology's higher end NAS devices. Its Linux-based DiskStation Manager (DSM) operating system offers cross platform file sharing over various network protocols including SMB, AFP and NFS. The 1019+ also offers support for multiple RAID types, iSCSI and domain authentication.

General DSM Specification
Networking Protocol SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, VPN (PPTP, OpenVPN)
File System • Internal: EXT4 and Btrfs
• External: EXT4, EXT3, FAT, NTFS, HFS+, exFAT
Supported RAID Type Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10
Storage Management • Maximum internal volume: 256
• Maximum iSCSI target: 32
• Maximum iSCSI LUN: 256
File Sharing Capability • Maximum local user account: 2,048
• Maximum local group: 256
• Maximum shared folder: 256
• Maximum concurrent SMB/NFS/AFP/FTP connection: 512
Privilege Windows Access Control List (ACL), application privileges
Directory Service Windows AD integration: Domain users login via SMB/NFS/AFP/FTP/File Station, LDAP integration
Security Firewall, encryption shared folder, SMB encryption, FTP over SSL/TLS, SFTP, rsync over SSH, login autoblock, Let's Encrypt support, HTTPS
(customizable cipher suite)
Supported Client Windows 7 and 10, Mac OS X 10.11 onwards
Supported Browser Chrome, Firefox, Internet Explorer 10 onwards, Safari 10 onwards; Safari (iOS 10 onwards), Chrome (Android 6.0 onwards)
Interface Language English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svensk, Nederlands, Русский, Polski, Magyar,
Português do Brasil, Português Europeu, Türkçe, Český, 日本語, 한국어, 繁體中文, 简体中文

The 1019+'s capabilities can be expanded even further by downloading and installing add-on packages. Within the Package Center, you'll find packages that will let you backup your data, collaborate with others, sync your data to the cloud and even manage IP cameras deployed within your home or office.

File Server & Synchronization
Drive Provide a universal portal to synchronize your files across various platforms, including Windows, macOS, Linux, Android, and iOS. The built-in universal portal allows you to access data anytime and anywhere.
• Maximum number of hosted files: 500,000
• Maximum number of concurrent connections for PC clients: 450
File Station Virtual drives, remote folders, Windows ACL editor, compressing/extracting archived files, bandwidth control for specific users/groups, creating sharing links, transfer logs
FTP Server Bandwidth control for TCP connections, custom FTP passive port range, anonymous FTP, FTP SSL/TLS and SFTP protocol, boot over the network with TFTP and PXE support, transfer logs
Presto File Server High-speed data transfer over WAN with exclusive SITA technology between Synology NAS and desktop6
Cloud Sync One or two-way synchronization with public cloud storage providers including Alibaba Cloud OSS, Amazon Drive, Amazon S3-compatible storage, Backblaze B2, Baidu Cloud, Box, Dropbox, Google Cloud Storage, Google Drive, hubiC, MegaDisk, Microsoft OneDrive, OpenStack Swift-compatible storage, Tencent COS, WebDAV servers, Yandex Disk
Universal Search Offer global search into applications and files
iSCSI Storage & Virtualization
iSCSI Manager • Maximum iSCSI target: 128
• Maximum iSCSI LUN: 256
• iSCSI LUN clone/snapshot support
Virtual Machine Manager Deploy and run various virtual machines on Synology NAS, including Windows, Linux, or Virtual DSM
Data Protection & Backup Solution
Hyper Backup Support local backup, network backup, and data backup to public clouds
Backup Tool DSM configuration backup, macOS Time Machine support, Cloud Station Backup
Shared folder sync - maximum task number: 32
Snapshot Replication • Maximum of shared folder snapshots: 1,024
• Maximum of Replication: 32
High Availability Manager Reduce service downtime by setting up two identical NAS into one high-availability cluster
Active Backup for G Suite Support G Suite My Drive and Team Drive backup and restoration
Active Backup for Office 365 Support Office 365 OneDrive for Business, mail, contacts, and calendar backup and restoration
Active Backup for Business All-in-one backup solution designed for heterogeneous business IT environment, enabling IT admins to remotely manage and monitor protection over PC, servers and VM on one centralized console
Productivity & Collaboration
Collaboration tools Collaborate with instant message service Chat, online editor Office, and scheduling assistant Calendar
• Chat maximum user: 1,500
• Office maximum user: 1,800
• Calendar supports CalDAV and access via mobile devices
Note Station Rich-text note organization and versioning, encryption, sharing, media embedding and attachments
MailPlus Server Secure, reliable, and private mail solution with high-availability, load balancing, security and filtering design (includes 5 free email account licenses; additional accounts require the purchasing of additional licenses)
MailPlus Intuitive webmail interface for MailPlus Server, customizable mail labels, filters, and user interface
Multimedia
Moments Support smart AI album with facial and subject recognition, photo editing and sharing features, similar photo detection, auto-editing functions such as color correction and angle adjustments, and AI selection of the best photos. Mobile applications are available on iOS and Android devices.
Other Packages Video Station, Photo Station, Audio Station, iTunes Server
Surveillance
Surveillance Station Maximum IP camera: 40 (total of 1,200 FPS at 720p, H.264) (including two free camera licenses; additional cameras require the purchasing of additional licenses)
All-in-One Server
Directory Server for Windows Domain Provide a flexible and cost-effective domain controller solution
CMS Provide a single interface to manage and monitor multiple Synology NAS
VPN Server Maximum connection: 30, supported VPN protocol: PPTP, OpenVPN, L2TP/IPSec
Mail Server Supported Mail Server protocol: POP3, SMTP, IMAP, support LDAP/AD account
Mail Station Webmail interface for Mail Server to receive emails from multiple POP3 mailboxes, customizable SMTP server
Web Station Virtual host (up to 30 websites), PHP/MariaDB, 3rd-party applications support
Other Packages DNS Server, RADIUS Server, Log Center
Others
Storage Analyzer Volume and quota usage, total size of files, volume usage and trends based on past usage, size of shared folders, largest/most/least frequently modified files
Antivirus Essential Full system scan, scheduled scan, white list customization, virus definition auto update
iOS/Android applications DS audio, DS cam, DS cloud, DS file, DS finder, DS get, DS note, DS photo, DS video
Other Packages Additional third-party packages available on Package Center