IBM System Storage DS8000 Technical Solutions V3 - C4090-453 Exam Questions [2026]

QUESTION NO: 1
A customer has submitted an REP for which a DS8870 is the preferred solution to support their VMware environment. They require support for VAAI Extended Copy.
What should the technical specialist advise this customer?

A. VAAI is only a host function so any disk subsystem can be considered B. A DS8870 with FlashCopy should be proposed C. DS8870 supports the VAAI functionality required by this customer D. A SAN Volume Controller must be proposed along with the DS8870 to provide VAAI support

Correct Answer: C

QUESTION NO: 2
With the DSS000, if a customer raises a Severity' I call with the Hardware or Software Support Center.
IBM will work on the call 24 hours a day, seven days a week provided the customer does what?

A. Agrees to attend a daily teleconference and continues to emphasize the importance of the problem B. Supplies all dumps, logs and traces that the device or component in error has produced C. Has people available to work 24 hours a day, seven days a week to match the Support Center's effort D. Escalates the problem within IBM to see if this route helps fix the issue first

Correct Answer: C

QUESTION NO: 3
What is the set of databases where objects can be accessed by sending SNMP get or set requests?

A. SNMPDTB B. SNMP notifications C. SNMP MIB D. SNMP SET/GET

Correct Answer: C

QUESTION NO: 4
Within the IBM disk storage portfolio, which of the following capabilities is unique to the DSS000?

A. Thin provisioning for distributed systems B. Cache mirroring for all write data from servers C. Three-site cascaded replication D. Point-in-time copy with full copy

Correct Answer: C

QUESTION NO: 5
A customer wants to be sure that all the volumes and LUNs associated with a program are copied at a consistent point in time.
Which disaster recovery function does the DS8000 support that this customer wishes to focus on?

A. FlashCopy Manager B. Consistency Groups C. Volume Copy D. Global Copy

Correct Answer: B

QUESTION NO: 6
What factor in the architecture of the DSS000 allows for concurrent microcode updates to be performed?

A. Subsystem Device Drivers B. Built-in redundancy C. Call Home and Dial-in support D. Control-unit Initiated Reconfiguration support

Correct Answer: B

QUESTION NO: 7
A customer has recently decommissioned their DS8700 wants to use the same data center floor space for a new D38 870.
What is an important fact for the technical specialist to discuss with the customer as it relates to data center requirements?

A. The rack dimensions on the DS8870 are larger than the D38700 so more floor space will be needed. B. The DS8870 uses more power than the DS8700 so more power cords will need to be ordered. C. Air circulation in the DS8870 has changed and flows back to front so cooling vent locations will need to be adjusted. D. The DS8870 uses a different power connector than the D68700 so new cords will need to be supplied.

Correct Answer: D