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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.
|Supported Storages||All-Flash Arrays||ETERNUS AF250 S3/S2, AF250
ETERNUS AF650 S3/S2, AF650
|Hybrid Storage Systems||ETERNUS DX100 S5/S4/S3, DX200 S5/S4/S3
ETERNUS DX500 S5/S4/S3, DX600 S5/S4/S3
ETERNUS DX900 S5
ETERNUS DX8700 S3/S2, DX8900 S4/S3
ETERNUS DX90 S2, DX400 S2 series
|Supported Servers||Mission Critical IA Server, UNIX Server, Industry Standard Servers|
|Operational Interface||Mission Critical IA Server
Industry Standard Servers
|ETERNUS SF AdvancedCopy Manager|
*Note: Products/features/support content introduced on this page may be modified without notice.
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