Coverage · Amazon ElastiCache
Reserved nodes, covered as carefully as everything else.
ElastiCache has the smallest published ceiling of the three services Reserver covers — which is exactly why it's the one most likely to sit unreserved for years. Same inventory scan, same coverage map, same renewal radar as RDS and EC2.
- Must match exactly
- Node type, cache engine, region
- Can flex
- Nothing — no size flexibility, no convertible option
- Term
- 1-year or 3-year
- Payment option
- No Upfront, Partial Upfront, or All Upfront
- Exchange & resale
- None — no modification, no exchange, no Marketplace resale
Discount ceilings per AWS published pricing; your actual rates depend on instance class, term, and payment option — Reserver shows you the exact math for your fleet.
Where the money goes missing
Three ways Amazon ElastiCache leaks.
The leak
The shallowest ceiling of the three, easiest to under-value
At up to 55% off, ElastiCache reservations get treated as an afterthought next to RDS and EC2 — which is exactly how a steady cache tier ends up running on-demand for years.
What Reserver does
Same coverage map, same math, no afterthought. Reserver scans and matches ElastiCache the same way it does RDS and EC2 — coverage, not a footnote.
The leak
Node type drift
A cluster gets resized or migrated to a new node type, and the old reservation — bound to the old node type, no exceptions — keeps billing at full price while covering nothing.
What Reserver does
Node-type match on every reservation. Reserver's ledger flags a reservation the moment its node type stops matching anything running, instead of leaving it to be noticed on the bill.
The leak
The renewal cliff, same as everywhere else
ElastiCache reservations don't auto-renew either. A cache tier that's been running steadily for years reverts to on-demand the moment its term lapses, silently.
What Reserver does
Expiry radar on every reserved node. Reserver tracks every ElastiCache reservation's end date and flags it ahead of the lapse, same as it does for RDS and EC2.
What Reserver does
Every Amazon ElastiCache reservation, accounted for.
Full ElastiCache inventory scan
Every cluster's node type and region, scanned directly from the account.
Reserved node ledger
Every ElastiCache reservation you own: term, payment option, expiry date, and what it's covering.
One-click reserved node purchasing
Accept a recommendation and Reserver buys it through the AWS purchase APIs.
Expiry radar & renewal autopilot
Every reserved node's end date tracked and flagged ahead of the lapse — or re-bought automatically on Autopilot.
At your size
Same Amazon ElastiCache, different scale.
One or two cache nodes are easy to forget entirely — there's no dedicated owner watching a tier this small.
A renewal missed by 14 days ≈ $92 — pays for about 3 weeks of Reserver.
A handful of clusters across environments means node-type drift is easy to miss between quarterly reviews.
A renewal missed by 14 days ≈ $951 — pays for about 6 months of Reserver.
Cache tiers spread across many accounts and teams — the smallest ceiling of the three is also the easiest to overlook at scale.
A renewal missed by 14 days ≈ $6,904 — pays for a year or more of Reserver.
The same flat price whether you track 10 reservations or 10,000 — never a percentage of what you save.
Keep reading
Go deeper on Amazon ElastiCache.
Glossary
Guides
FAQ
Amazon ElastiCache questions
Why is ElastiCache's discount ceiling lower than RDS or EC2?
Up to 55% is AWS's published ceiling for ElastiCache reserved nodes, versus up to 69% for RDS and up to 72% for EC2 — a smaller ceiling, not a reason to skip reserving a steady cache tier.
Can an ElastiCache reservation move to a different node type?
No. Like RDS, ElastiCache reserved nodes have no convertible option — the node type is fixed for the term, with no exchange and no Marketplace resale.
Does Reserver track ElastiCache the same way as RDS and EC2?
Yes — one inventory scan, one reservation ledger, one coverage map across all three services. ElastiCache isn't a lesser citizen in the product.
What if we resize a cluster mid-term?
The old reservation stays bound to the old node type and keeps billing at its full price while covering nothing. Reserver's coverage map flags the mismatch as soon as it scans the new node type running.
Stop overpaying for a steady fleet.
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