Disaster recovery using remote location backup Remote Copy Disk Buffered REC over Low bandwidth Networks
To provide remote copying over low-bandwidth networks, a Consistency mode is provided. This uses part of cache memory as a buffer (The REC buffer). Data is then copied to the destination device and compiled on a block basis after accumulating the I/O from multiple REC sessions in the REC buffer for a specific period. Use of this mode provide the control to maintain transmission integrity even when data is transmitted out of order, due to transmission delays, as it travels to the destination device over the WAN.
In addition, if cache memory capacity becomes insufficient, due to instabilities in the link or increased traffic, disk buffered REC can be used. This supports temporary increases in updated data using the larger buffering capacity of hard disks.
- Able to configure disaster recovery systems using low cost, low bandwidth networks.
- Large capacity buffer supports temporary increases in data updates.
- Even when data updates exceed the bandwidth, data transmission continuity is
guaranteed by maintaining update order.
||Hybrid Storage Systems/
Disk Storage Systems
|ETERNUS DX100 S4/S3
ETERNUS DX200 S4/S3
ETERNUS DX500 S3/DX600 S3
ETERNUS DX8700 S3/DX8900 S3
ETERNUS DX90 S2
ETERNUS DX400/DX400 S2 series,
ETERNUS DX8000 series/DX8700 S2
||Mission Critical IA Server, UNIX Server, Industry Standard Servers
||Mission Critical IA Server
Industry Standard Servers
|ETERNUS SF AdvancedCopy Manager 16
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