Unsolved
This post is more than 5 years old
7 Posts
0
1304
September 4th, 2012 07:00
Bandwidth requirement for replication?
Hi,
What would be the bandwidth required to replicate an incremental data of max 1TB per day using EMC MirroView/A? The distance between two sites would be approx 650KM. One of the sites has CX4-120C with 4xiSCSI ports and the other has VNX5300 with 8xiSCSI ports.
Thanks,
Karthik
0 events found
No Events found!
RRR
6 Operator
•
5.7K Posts
0
September 4th, 2012 23:00
Nice question! Are you aware of the Ask the Expert program?
On September 10 Rupal Rajwar will start a session on exactly what you're asking: replication. Although that session is on VNX, Clariion replication is very similar. Have a look at https://community.emc.com/thread/149825
RRR
6 Operator
•
5.7K Posts
0
September 5th, 2012 00:00
You're using iSCSI for Mirrorview then? What's the latency between the 2 sites? Will you be using 1 or 2 lines (2 for redundancy). MirrorView only uses the lowest numbered iSCSI port of each Storage Processor, so only 2 ports in total can be used. Are there any hosts connected to these ports as well? (better not)
rupal1
433 Posts
1
September 6th, 2012 03:00
MV/A does not have any strict latency and bandwidth requirements. Minimum bandwidth is required 128kb/s which is very minimal is compared to the any practical scenario. On VNx there are 10G iscsi port(lowerst number ports in VNX) and in CX4 also i am assuming that you should be having 10G ports. For 1 TB Data to travel the distance you mentioned should not cause any issues on the speed of 10G link if your whole enviorment supports the same. Also if you are using 2 ports for this connectivity then the Data will can traverse without any bottleneck and much faster.