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1.
You are looking at a Fibre Channel trace log and you notice that the class 2 communication session between one initiator and target continually stops and then restarts. You suspect that there is a flow control problem between this pair of devices. Which login communication session would you analyze in the trace log for the number of flow control credits that have been allocated?
2.
There are two datacenters separated by twelve (12) km with IP connections linking the two sites. Site A is the primary production site, Site B is for test/development & disaster recovery. Site A synchronously replicates data to Site B for disaster recovery purposes via a merged SAN fabric between the two sites. The communication between the two sites is lost. What storage event will occur as a result of this?
3.
You have just completed installing, cabling, zoning, and device masking for a new server. HBA configuration was successful, yet the host cannot see the storage after executing a device find command. Investigation at the switch reveals that the host is not seen at the switch port. Light is visible at either end of the fiber but no link light is seen on the switch. What is the most likely cause of the problem?
4.
You have been asked to review your fabric management plan for effectiveness and efficiency, and to ensure that you are meeting its stated requirement. What should you check to see if you are meeting the defined SLAs?
5.
A customer has deployed redundant switched fabrics in a HA environment which also includes non-HA, single- attached test servers. A new project requires additional connectivity for new HA servers to be placed into production, but there are not enough free ports available in one of the existing fabrics to complete the HA deployment. Which option would allow for the addition of the new hosts while maintaining the redundant infrastructure at least cost?
6.
What is the primary reason for making an adjustment to the queue depth?
7.
What is a recommended guideline for merging two Fibre Channel fabrics?
8.
A four-way cluster is attached to two fabrics. Each member has two HBAs connected to each fabric. Each fabric has two subsystem connections. Each cluster member is a primary for one application. All LUNs appear on all storage ports with workload equally distributed across all. Each host has two dedicated HBAs for tape that can each see four independent LTO II (35MB/s) tape drives. All files are large and involve sequential I/O. Performance reporting shows a large read pending at the host during multi-threaded backup. What is the most probably cause for the large read pending at the host?
9.
A customer has a SAS-based storage environment with a SAS domain and some standalone servers, each with multiple built-in SAS disks. The implementation includes direct routing, table routing and subtractive routing. What is table routing?
10.
You have recently upgraded a tape drive on a older switch to operate at 120MB/s from 80MB/s. Prior to purchasing the tape drives, you tested server dumps to a disk array across multiple ports and saw speeds exceeding 150MB/s. With the new tape drive, you have not seen any dump speed exceed 100MB/s. What is the most likely cause?