D-Link DSN-6120 User Manual page 14

8. Front-end 4 GbE NIC ports with high availability/load balancing/fail-over support per
controller
Microsoft MPIO, MC/S, Trunking, LACP, and etc.

9. SBB Compliant
System key components

1. CPU: Intel Xscale IOP 81342
2. Memory: 4GB DDRII 533 DIMM per controller board
3. Hardware iSCSI off-load engine
4. 2 x UARTs: serial console management and UPS
5. Fast Ethernet port for web-based management use
6. Backend: 12 x SAS or SATA II drive connections
7. Front-end: 4x iSCSI GbE ports per controller board
8. LCM for quick management
9. Hot pluggable BBM support
10. SAS JBOD expansion port for expansion
11. Multiplexer board support for SATA drives (optional, on Dual controller mode)
12. Two power supplies
13. Redundant fans
RAID and volume operation

1. RAID level: 0,1,0+1,3,5,6,10,30,50, 60, JBOD, and N-way mirror
2. Up to 1024 logical volumes in the system
3. Up to 32 PDs can be included in one volume group
4. Global and dedicated hot spare disks
5. Write-through or write-back cache policy for different application usage
6. Multiple RAID volumes support
7. Configurable RAID stripe size
8. Online volume expansion
9. Instant RAID volume availability
10. Auto volume rebuilding
11. On-line volume migration with no system down-time
Advanced data protection

1. D-Link writeable snapshot
Built-in snapshot with rollback enabled

Snapshot enabled up to 16 volumes, each logical volume supports up to 32

snapshot volumes, total 512 snapshot volumes per system
2. Microsoft Windows Volume Shadow Copy Services (VSS)
3. Configurable N-way mirror for high data protection
4. Online disk roaming
5. Instant volume configuration restoration
6. Smart faulty sector relocation
7. Hot pluggable battery backup module support
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