DatacenterDisk

Dell VJ7CD vs HP 791034-B21

Side-by-side spec and price comparison. Live data from Amazon US.

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Our Recommendation
👑
HP 791034-B21 1.8TB SAS 12G 10K Enterprise

HP 791034-B21 1.8TB SAS 12G 10K Enterprise balances price ($133.33/TB), warranty (5 years), and enterprise reliability for the best overall value.

Best $/TB: Dell
Best Warranty: HP
Best for RAID: HP
Full Specification Comparison
Spec
Dell
VJ7CD 1.8TB 10K SAS 12G 512E
$55.00/TB
HP
791034-B21 1.8TB SAS 12G 10K Enterprise
$133.33/TB
Brand
Dell
HP
Model
VJ7CD 1.8TB 10K SAS 12G 512E
791034-B21 1.8TB SAS 12G 10K Enterprise
Series
PowerEdge OEM
ProLiant OEM
Part Number
VJ7CD
791034-B21
$/TB
👑$55.00
$133.33
Price
$99.00
$240.00
Condition
New
Refurb
Capacity
1.8TB
1.8TB
Interface
SAS-12G
SAS-12G
Form Factor
2.5"
2.5"
Drive Type
HDD
HDD
Recording Tech
CMR
CMR
RPM
10,000
10,000
Cache
—
—
Sector Size
512e
512e
Workload Rating
—
—
DWPD
N/A
N/A
Warranty
—
5 years
Workload Tier
oltp
oltp
In Stock
✓ In Stock
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Workload Fit
Workload
Dell
HP
NAS Storage
●●●
●●●
Backup Target
●●●
●●●
OLTP Database
●●
●●
Cold Archive
●
●
Virtualization
●●
●●
AI/ML Storage
●
●
Buying Recommendation
Choose Dell VJ7CD 1.8TB 10K SAS 12G 512E if:
  • ✓ You need maximum storage per dollar
  • ✓ You need new-with-warranty for compliance or budgeting
Buy Dell →
Choose HP 791034-B21 1.8TB SAS 12G 10K Enterprise if:
  • ✓ You need 5-year warranty coverage for production
  • ✓ You're building a RAID array and need guaranteed CMR compatibility
  • ✓ You're comfortable with datacenter refurb to maximize savings
Buy HP →

Frequently Asked Questions

Dell VJ7CD offers better value at $55.00/TB vs $133.33/TB - a 59% price difference. Factor in warranty length and workload rating when the price gap is small.

Mixing drives of different models in RAID is not recommended even if capacities match. Different firmware, error handling and seek patterns can cause rebuild issues. Use identical drives within the same RAID group for reliable operation.

HP 791034-B21 carries a longer 5-year warranty vs unknown years for Dell VJ7CD. Both are enterprise-grade drives built for 24/7 operation.

Dell VJ7CD is the better fit for NAS storage. It uses CMR recording which is safe for all RAID levels. SAS interface requires a SAS HBA or SAS-capable NAS.