The following job interview question test interviewee’s knowledge and understanding of various Data Management Techniques as well as High Availability Solutions. Draw a picture describing an end-to-end fault tolerant or highly available storage infrastructure from server to (both IP-SAN and FC SAN) to storage-device. Think of high availability at every possible point in the topology. … Read more
The following job interview question test interviewee’s knowledge and understanding of various Storage network Management Techniques. The focus is on interviewee’s ability to debug a typical problem seen in the data center in a step-by-step manner. Here is a problem statement: In the above setup, 3 Servers are connected to 3 Storage Arrays through an … Read more
The following job interview question test interviewee’s knowledge and understanding of various Storage Device Management Techniques. The focus is on interviewee’s ability to debug a typical problem seen in the data center in a step-by-step manner. Here is a problem statement: In the above setup, application were running on a Server which is connected to … Read more
The following job interview questions test interviewee’s knowledge and understanding of various Storage Virtualization Techniques: How disk virtualization is achieved? List down advantages and disadvantages of Server based virtualization List down advantages and disadvantages of Network based virtualization List down advantages and disadvantages of Storage Device based virtualization How Block Level Virtualization is achieved? What … Read more
The following job interview questions test interviewee’s knowledge and understanding of various RAID Levels and their advantage and disadvantages: How many I/O operations are issued by a RAID controller for a RAID5 write operation (lets assume 4 disks in total)? Compare and contrast RAID 4 and RAID 5 with respect to performance issues (read & … Read more
The following job interview questions test interviewee’s knowledge and understanding of various storage protocols: Compare and contrast ATA and SATA protocol Compare and contrast Parallel and Serial SCSI Compare and contrast FC and iSCSI Compare and contrast SAS and FC What is the need of WWN? What makes a WWN unique? How many Maximum number … Read more
The following job interview questions highlight the evolution of storage topology from directly attached storage model to network attached model to storage area networks. It also tests interviewee’s practical knowledge and understanding on various storage topology and components, their advantages and disadvantages. Compare and contrast the advantages and disadvantages of DAS, NAS and SAN topologies … Read more
The following job interview questions highlight the enormity of storage challenges organizations face for internet scale businesses as well as traditional businesses. Example includes – Google, Facebook, LinkedIn, Twitter and many more companies. Convert the following storage capacities in terms in 2^x bytes or 10^y bytes: 1 TB – ? 1 KB – ? 1 … Read more
This set of multiple choice SAN storage questions and answers focuses on Storage Virtualization. 1. Which of the following company manufactures Raid arrays a) Hyundai b) Honda c) Hitachi d) Mitsubishi 2. An FC jammer-analyzer can be used to a) Capture all FC frames b) Tamper FC packets c) I/O performance d) All of the … Read more
This set of SAN multiple choice questions and answers focuses on High Availability Areas. 1. Bathtub Curve is used to represent the reliability characteristics of hardware components. Why is this not applicable to software modules? a) Software failures tends to stabilize and do not increase with respect to time b) Software failures cannot be predicted … Read more
