How many T3s links would you recommend?
You are designing an SRDF/S solution. The workload profile is:
Total I/Os per second = 10000
Write % = 25
Read block size = 8 KB
Write block size = 8 KB
Network bandwidth can be purchased in increments of single T3 (45 Mb/s) links. Data compression is not in use. How many T3s links would you recommend?
What will significantly improve the link service time between the 2 sites?
A customer is using SRDF/S to replicate a Symmetrix VMAX at the production site to the VMAX at the DR site. The sites are connected using a dedicated T1 link and are 38 km apart.
What will significantly improve the link service time between the 2 sites?
How many OC3 links would you recommend?
You are designing an SRDF/S solution. The workload profile is:
Total I/Os per second = 30000
Write % = 20
Read block size = 4 KB
Write block size = 4 KB
Network bandwidth can be purchased in increments of single OC3 (155 Mb/s) links. Data compression is not in use. How many OC3 links would you recommend?
When should customers implement SRDF/S solutions?
When should customers implement SRDF/S solutions?
Which factors contribute to response time elongation in an SRDF/S environment?
Which factors contribute to response time elongation in an SRDF/S environment?
Using SRDF/S, In Enginuity 5772 and later, How many concurrent writes can a device receive?
Using SRDF/S, In Enginuity 5772 and later, How many concurrent writes can a device receive?
In Enginuity 5671 and earlier, how does SDRF/S behave when multiple writes to a device are received?
In Enginuity 5671 and earlier, how does SDRF/S behave when multiple writes to a device are received?
How many RAs are recommended?
An SRDF/S implementation is being designed. The RA performance limits are 3800 4k IOPS for a Fibre RF adapter. The application is doing 6000 4k IOPS with 30% writes and uses multiple volumes. How many RAs are recommended?
What is the impact on response time when multiple concurrent writes to an RDF device arrive from different FA
What is the impact on response time when multiple concurrent writes to an RDF device arrive from different FA ports on a Symmetrix VMAX?
How many RA should be recommended?
A customer is implementing SRDF/S for an application that generates 16000 8K IOPS with 30% writes. A single RDF port can service 1200 8K IOPS. How many RA should be recommended?