What is the approximate propagation delay for one write?
A company is planning to deploy synchronous array-based remote replication over Gigabit
Ethernet links. The workload profile of the application to be replicated is as follows:
3,000 IO/s
Read/Write Ratio = 70:30
Write block size = 4 KB
Distance between sites = 40 kilometers
——-Write-acceleration devices will not be used
What is the approximate propagation delay for one write?
what is the minimum supported recovery point objective?
A company plans to locate its primary production site and secondary disaster recovery site 500
kilometers apart. You are recommending a solution that includes the use of high-end storage
arrays running asynchronous replication. During the planning phase, you have estimated that:
The asynchronous replication minimum cycle time is set to 30 seconds.
It will take three hours to fail over to the secondary site’s hardware after declaring a disaster.
After the failover to the secondary site, it will take another two hours to bring up the applications.
Based on the information provided, what is the minimum supported recovery point objective?
how many replication channels are required for this solution when trunking is enabled?
A company is planning to deploy array-based synchronous remote replication between two sites
over 100 MB/s FC links. The two sites are 50 miles apart. Each replication channel can handle a
maximum of 1,000 IOPS. The workload profile of the application is as follows:
5,000 IO/s
Read/Write Ratio = 60:40
Write block size = 8 KB
If design best practices are considered, how many replication channels are required for this
solution when trunking is enabled?
Which change can meet their requirement without requiring an additional investment?
An organization is using an asynchronous replication solution. They have additional network
bandwidth available and want to reduce the RPO to meet changing business requirements.
Which change can meet their requirement without requiring an additional investment?
what is a key factor that determines the maximum period of outage possible without full resynchronization?
Replication is performed between two sites using logical volume management (LVM). If a network
outage occurs, what is a key factor that determines the maximum period of outage possible
without full resynchronization?
what is the round trip time for one write operation?
A company has deployed synchronous replication between two sites using a Gigabit Ethernet link.
If the two sites are separated by a distance of 400 kilometers, what is the round trip time for one
write operation?
What is the total amount of raw capacity that is required for this solution?
A database is utilizing ten 9 GB, RAID 1 devices. A cascade three-site remote replication solution
that includes synchronous and extended distance consistent PIT has been selected for disaster
recovery. All devices involved in remote replication will have RAID 1 protection.
What is the total amount of raw capacity that is required for this solution?
what will ensure data consistency?
In a SAN-based hot pull operation, what will ensure data consistency?
What accurately represents a fundamental attribute of CDP replication?
What accurately represents a fundamental attribute of CDP replication?
What is a possible cause for this issue?
A company has implemented SAN-based remote replication to perform a migration from a high-end storage array to a midrange storage array. Both arrays are connected to the same SAN. The
company is unable to establish a session between the two arrays to perform the migration.
What is a possible cause for this issue?