Predictive Storage Reliability
Know which drive is about to fail before it takes your data with it
Crest reads SMART telemetry and vendor wear patterns across your storage fleet, so an SRE swaps the hardware on a maintenance window instead of at 3am after it dies.
| Drive | Model | Age | SMART | Crest |
|---|---|---|---|---|
| /dev/sda | WD Gold 4TB | 847d | Pass | Healthy |
| /dev/sdb | Seagate Exos | 1204d | Pass | Watch |
| /dev/sdc | Samsung 870 | 918d | Pass | Replace |
| /dev/sdd | HGST Ultrastar | 632d | Pass | Healthy |
SMART data tells you a drive failed. Crest tells you which one will.
01
SMART thresholds were set by drive vendors in the 1990s. A drive can show all green attributes two days before a head crash. Your monitoring checks the pass/fail bit, not the trajectory.
02
Storage incidents average 6.3 hours to resolve. At $9,000 per hour of downtime for payment infrastructure, that is one missed alert away from a $56k incident. Crest surfaces the warning 14 to 90 days early.
03
Every drive model has its own failure fingerprint. Reallocated sectors matter more on spinning media. Wear leveling counts tell a different story on NVMe. Crest models vendor-specific patterns, not a one-size threshold.
Three steps from agent install to swap ticket
1
Deploy the agent
A lightweight read-only agent runs on each storage host. It collects SMART attributes, vendor-specific logs, and I/O error counters every 15 minutes. No write access. No kernel modules. Install in under five minutes via apt, yum, or Helm chart.
2
Crest models the telemetry
The backend correlates per-drive telemetry against vendor wear models and historical failure signatures from 30+ supported drive models. Each drive gets a failure probability score and a recommended action window.
3
Alert fires before the incident
When a drive crosses the replacement threshold, Crest fires to PagerDuty, OpsGenie, Slack, or your webhook. The alert includes drive path, host, model, and days-to-replacement estimate, so your on-call SRE has everything for the swap ticket.
What Crest measures
Prediction window
14 - 90 days
Failure probability scores update every 15 minutes. Drive replacement recommendation includes a days-to-failure estimate so you can plan the swap into a maintenance window, not a war room.
Drive models covered
30+
WD, Seagate, HGST, Samsung, Micron, Kioxia, SK Hynix, Intel DC, and more. Each model has its own wear signature profile rather than a shared generic threshold.
SMART attributes tracked
Beyond raw pass/fail
Reallocated sector counts, pending sectors, uncorrectable errors, power-on hours, wear leveling counts, temperature excursions, and vendor-specific extended attributes where available.
Alert destinations
PagerDuty, Slack, webhook
Alerts route to your existing incident stack. PagerDuty integration maps severity to priority. Slack messages include drive path and action. Webhook payload is JSON with full attribute snapshot.
Crest flagged 3 drives that were still showing green in our SMART data. Two of them failed within 10 days. We replaced our weekly disk-check script with Crest.
The PagerDuty integration means our on-call team sees disk warnings before they become incidents. Six months without a storage-related page after deploying Crest.
Simple per-drive pricing
No setup fees. 14-day free trial on Starter and Team.
Team
- Up to 200 drives
- 30-day prediction window
- PagerDuty + OpsGenie integration
Know which drive fails before your pager does.
Deploy the Crest agent on a single host in five minutes. No credit card for the trial. No write access to your storage.
Questions? Talk to the team or [email protected]