| Features | Free | Standard | Ultimate | SDK/Source |
| CHAP user authentication |
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| Number of concurrent connections per target | 5 |
Unlimited | Unlimited | *1 |
| Number of Targets can be created | Unlimited | Unlimited | Unlimited | *1 |
| Number of connections per initiator-target nexus (Multiple connections feature) | 1 | Unlimited | Unlimited | *1 |
| iSCSI RAM disk support |
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| Standard image disk device support |
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| Multi-user mutual CHAP authorization support |
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| Virtual CD/DVD-ROM emulator support |
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| Virtual CD/DVD-RW burner with auto-loader support |
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| Generic SCSI device (SPTI) support |
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| RAID-1 (Mirror) feature |
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| Asynchronous Replication over Internet |
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*1 |
| Automatic snapshot replication |
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*1 |
| High-availability (failover) feature |
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(<2T) |
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*1 |
| COW protection (Virtual Write) |
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*1 |
| Virtual Hard Disk (VHD) support |
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*1 |
| Virtual Hard Disk (VHD) snapshot |
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*1 |
| Virtual Hard Disk (VHDX) support |
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*1 |
| Image File (IMG) snapshot |
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*1 |
| Volume Shadow Copy Compatible |
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| Windows GUI control application |
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| IPsec on-the-fly iSCSI network line encryption |
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| I/O read and write caching |
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| Multiple level tier and SSD / Persistent Memory Cache |
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| Security disks for each client, each client use own disk which use CHAP password encrypted |
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*1 |
| IP address and mixed authentication mechanism |
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*1 |
| CHAP user management tool |
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| Network-bridged(exports an existing partition, disk, CD/DVD-ROM to clients as a virtual iSCSI drive) |
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| Remote Burning (via SPTI) |
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| Remote Tape Backup (via SPTI) |
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| Vendor Specified CDB support (via SPTI) |
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| True real-time Continues Data Protection (CDP) |
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*1 |
| Software RAID |
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*1 |
| Distributed iSCSI SAN(Datacenter) |
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*1 |
| CHAP users counts | Unlimited |
Unlimited |
Unlimited |
Unlimited |
| Client side snapshot management |
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| Storage Pool and Snapshots |
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*1 |
SUPPORT
