The Tool Desk
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Start with recovery requirements, not the storage medium
A backup is useful only if it can restore the right data in time. Before comparing technologies, identify the systems and information your organization needs to protect and set recovery objectives for each.
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- Recovery time objective (RTO): the maximum acceptable time to restore a system or service.
- Recovery point objective (RPO): how much recent data, measured as time, the organization can tolerate losing.
- Retention: how long each backup must be kept, including any requirements that apply to a particular data class or industry.
A customer-facing service may need a faster restore than an archive that is rarely accessed. Document those differences rather than assigning one recovery target to the entire organization. AWS guidance recommends detailed recovery requirements and retention planning in its backup strategy guidance.
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Disk, tape and cloud or object storage are not mutually exclusive choices. An organization may use an accessible local copy for routine recovery and separate, off-site or isolated copies for disaster recovery and resilience against destructive attacks.
#1 Best Overall
- Easily store and access 2TB to content on the go with the Seagate Portable Drive, a USB external hard drive
- Designed to work with Windows or Mac computers, this external hard drive makes backup a snap just drag and drop
- To get set up, connect the portable hard drive to a computer for automatic recognition no software required
- This USB drive provides plug and play simplicity with the included 18 inch USB 3.0 cable
- The available storage capacity may vary.
| Storage option | Potential role | What to evaluate |
|---|---|---|
| Disk-based storage | Readily accessible backups or point-in-time copies. | Whether the actual restore workflow meets RTOs; capacity and operating costs; and whether an incident affecting production could also reach or destroy the backup. Consider isolation or immutability rather than assuming that a separate disk is protected. NIST storage infrastructure guidance discusses restore speed and disk-based point-in-time copies. |
| Tape | A distinct physical medium and, when stored offline, a potential isolated copy. | Retrieval and restore procedures; availability and maintenance of compatible hardware; and how media are transported, secured, inventoried and tested. NIST identifies tape and recovery over a wide-area network as different restoration considerations. NIST SP 800-209 |
| Cloud or object storage | An off-site copy and, when correctly configured, a copy with immutable retention. | Retrieval time and charges, retention-lock behavior, access controls, storage location, compliance fit and separation of accounts or administrative access. CISA discusses immutable backups, offline or cloud-to-cloud backups, and object lock or delete protection in its #StopRansomware Guide. Those controls depend on configuration and protected access. |
| External hard drive | A local or small-scale backup copy. | Whether it is physically secured, disconnected when not actively backing up, and regularly tested—and whether separate protected and off-site copies also exist. CISA describes an external drive as an option for locally stored device data, not as a complete organization-wide strategy. CISA device data guidance |
No universal winner follows from these categories. The available guidance does not establish comparable prices or restore speeds: those depend on workload, configuration, location, service tier and restore volume. Compare actual configurations and exercises rather than treating a medium by itself as a guarantee.
Build protection against loss, attack and operator error
Keep multiple copies in different media and locations, and make sure at least one copy is not exposed to the same threats as production. CISA’s Data Backup Options presents the 3-2-1 rule as “3 – Keep 3 copies of any important file: 1 primary and 2 backups.” It also recommends an off-site copy, offline backups and physically secure media.
Rank #2
- Easily store and access 5TB of content on the go with the Seagate portable drive, a USB external hard Drive
- Designed to work with Windows or Mac computers, this external hard drive makes backup a snap just drag and drop
- To get set up, connect the portable hard drive to a computer for automatic recognition software required
- This USB drive provides plug and play simplicity with the included 18 inch USB 3.0 cable
- The available storage capacity may vary.
For ransomware and other destructive events, a backup that remains continuously reachable through the same credentials or systems as production may be vulnerable alongside production. Consider offline copies, immutable retention and deletion protections. Encrypt backup data and restrict access; protect the credentials and administrative paths that control backup retention. CISA’s ransomware guidance addresses immutable data, object lock and delete protection, while Microsoft’s Azure Backup security best practices describes provider-side data-protection controls. A cloud feature is not a substitute for correctly configured permissions and separated access.
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- Inventory systems and data. Record business criticality, dependencies, data owners, and recovery and retention needs for each workload.
- Set RTO, RPO and retention. Agree on acceptable downtime, data loss and retention with the people responsible for operating the service and meeting obligations.
- Assign a role to each copy. Decide which copy must be quickly accessible and which must be off-site, offline, immutable or otherwise isolated. Keep copies in physically separate, segmented and secure locations where appropriate, as CISA recommends in its backup options guidance.
- Map the restore workflow. Compare disk, tape and cloud against the complete process—including retrieval, network transfer, compatible hardware and the people and access needed to restore. NIST’s storage infrastructure guidance treats restoration speed as a planning consideration.
- Review security and administration. Check encryption, identity and access controls, deletion protections, immutable retention, logging and separation of recovery accounts. Confirm who can change or remove backups and how that access is protected.
- Validate location and compliance. Have security and compliance owners confirm retention, data location and applicable obligations for the organization’s data and jurisdictions. Requirements can differ by industry and data class; do not assume a provider default satisfies them.
- Test restores and record results. Exercise representative recovery scenarios, measure whether they meet the stated objectives, and document what worked, what failed and corrective actions. CISA recommends maintaining and restoring backups; a stored copy alone does not prove recovery capability.
Keep cost comparisons tied to the workload
Budget the whole recovery arrangement, not just the storage line item. Depending on the option and design, relevant costs can include capacity, administration, compatible tape hardware, media handling, network transfer and cloud retrieval. The sources cited here do not establish comparable current prices or measured restore speeds across media. Request estimates for the organization’s region, configuration, retention period and likely restore volume, then verify them against an actual recovery exercise.
Quick Recap
Rank #4
- Easily store and access 4TB of content on the go with the Seagate Portable Drive, a USB external hard drive.Specific uses: Personal
- Designed to work with Windows or Mac computers, this external hard drive makes backup a snap just drag and drop
- To get set up, connect the portable hard drive to a computer for automatic recognition no software required
- This USB drive provides plug and play simplicity with the included 18 inch USB 3.0 cable
- The available storage capacity may vary.
Rank #3
- Easily store and access 1TB to content on the go with the Seagate Portable Drive, a USB external hard drive.Specific uses: Personal
- Designed to work with Windows or Mac computers, this external hard drive makes backup a snap just drag and drop. Reformatting may be required for Mac
- To get set up, connect the portable hard drive to a computer for automatic recognition no software required
- This USB drive provides plug and play simplicity with the included 18 inch USB 3.0 cable
- The available storage capacity may vary.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
