How to choose between an HDD and SSD

An HDD stores data on spinning magnetic disks. An SSD uses flash memory, so it usually starts applications faster, operates silently, and better resists movement.

Choose a drive rated for continuous surveillance workloads and confirm DVR or NVR compatibility. Capacity needs depend on camera count, resolution, frame rate, compression, and retention period.

Estimate the data created by your applications or cameras, multiply it by the required retention period, then include spare capacity for growth and normal system operation.

No. SSDs suit speed-sensitive systems, while HDDs often suit economical high-capacity storage. The better choice depends on workload, budget, capacity, interface, and expected write volume.

B.I.T.S Pakistan lists available drives from Seagate, WD, HGST, and mixed-brand stock. Each product page identifies its brand, capacity, warranty, price, and current availability.

The catalogue supports capacities from 160 GB through 14 TB. Actual availability changes with inventory, so check the product listing before placing an order.

The warranty period is shown in months on each product page. Confirm the applicable terms, claim process, and exclusions with B.I.T.S Pakistan before purchasing.

Match the drive interface, physical size, capacity limit, and workload rating to the system manufacturer’s specifications. Contact the store when the model requirements are unclear.

A compatible desktop drive may function, but surveillance systems benefit from drives designed for continuous recording. Verify workload rating, heat conditions, supported capacity, and recorder compatibility.

Check whether the laptop accepts a 2.5-inch SATA drive, an M.2 SATA drive, or an NVMe SSD. Also confirm supported dimensions, capacity, and operating-system migration needs.

Capacity alone does not determine speed. Drive technology, interface, controller, cache, workload, available free space, and the rest of the system all affect performance.

Drive makers and operating systems can calculate units differently, and formatting or system partitions use some space. The displayed usable capacity is therefore normally lower.

Keeping free space helps an SSD manage background operations and accommodates system growth. The appropriate reserve depends on the drive, operating system, and workload.

Keep independent backups instead of relying on a single drive. Test restores periodically and separate at least one backup from the main computer or recording system.

Data recovery enquiries are handled through Disk Analysis Pakistan. Use the Data Recovery Service link to visit diskanalysis.com.pk for service information and contact details.