TotalHealWhitepaper · 27 October 2026

Immutable Backup Storage

A backup that nobody can delete — not an attacker, not an admin, not us

Backup copies locked with S3 Object Lock: nobody can change or delete them before their retention ends.

ImmutableVault Immutable Backup icon
TotalHealImmutableVault
Freaquer Corporation Pvt Ltdtotalhealsecurity.com

Contents

  1. 1Executive summary
  2. 2The challenge
  3. 3Architecture
  4. 4How it works
  5. 5Capabilities in detail
  6. 6Security and data handling
  7. 7Where it fits
  8. 8Deployment and system requirements
  9. 9Technical specifications
  10. 10Getting started

1Executive summary

ImmutableVault locks every RecoveryVault restore point with S3 Object Lock in compliance mode at the moment it is written. Until retention ends, no administrator, stolen key or TotalHeal itself can change or delete it — and every attempt raises an alert.

2The challenge

An attacker with administrator access deletes the backups before encrypting the servers. If any account — yours, a stolen one, or your vendor’s — can delete a backup, the backup is not your last line.

The TotalHeal approach. ImmutableVault writes every RecoveryVault restore point to a repository with S3 Object Lock in compliance mode. Until its retention ends, no administrator, stolen key or TotalHeal itself can change or delete it.

3Architecture

ImmutableVault Immutable Backup reference architecture: Restore points are written straight to an Object Lock bucket and locked on write in compliance mode; early deletion and lock shortening are refused and alerted.
Restore points are written straight to an Object Lock bucket and locked on write in compliance mode; early deletion and lock shortening are refused and alerted.

4How it works

  1. WriteEach object is locked in compliance mode as it is written.
  2. ExtendReused blocks get their lock extended to the new point.
  3. RefuseDeletion before retention and lock shortening are refused and alerted.

5Capabilities in detail

  • Locked at write timeEvery object of a restore point is locked in compliance mode as it is written.
  • Reused blocks stay lockedWhen a new restore point reuses an older block, that block’s lock is extended to the new point’s retention.
  • Deletion refusedRetention and clean-up never delete a locked object; deleting a server with held or locked points is refused and raises an alert.
  • Lock shortening refusedAttempts to shorten a policy’s lock are refused and alerted as inhibit-recovery activity (MITRE ATT&CK T1490).
  • Your bucket or oursOn an S3 bucket created with Object Lock — yours, or TotalHeal’s where offered.

6Security and data handling

  • Compliance-mode locksNobody can delete a locked object early.
  • Alerts on attemptsShortening or deletion attempts raise alerts.
  • Your bucketLocks live in storage you can own.

7Where it fits

Ransomware insuranceA last copy no stolen credential can remove.
Regulated retentionRecords that cannot be altered before their date.
Insider riskEven administrators cannot purge backups.

8Deployment and system requirements

Cloud (SaaS)AvailableRun by TotalHeal in an India region: nothing to host, updates delivered by us.
On-premisesAvailableDelivered with our team from the on-premises kit.
Air-gappedAvailableOffline kit, offline licence file and offline update bundles.

Protected platforms

  • AWS S3
  • MinIO
  • Wasabi

On-premises server

Operating system
RHEL, Rocky Linux or AlmaLinux 8 / 9; Ubuntu 20.04, 22.04 or 24.04; Debian 11 / 12
Processor
4 vCPU (tested configuration)
Memory
8 GB recommended (6 GB minimum)
Disk
10 GB free for software, releases and backups, plus data
Sign-in
Active Directory / LDAP, SAML 2.0 or OpenID Connect
Software
Nothing to pre-install: no container runtime, database, web server or Java

Network and access

  • TotalHeal RecoveryVault
  • An S3-compatible bucket with Object Lock enabled

Alerts and tickets to

  • Splunk
  • Microsoft Sentinel
  • Elastic
  • Syslog / CEF
  • Jira
  • ServiceNow
  • Slack
  • Microsoft Teams

9Technical specifications

FeaturesIncluded
Locked at write timeIncluded
Reused blocks stay lockedIncluded
Deletion refusedIncluded
Lock shortening refusedIncluded
Your bucket or oursIncluded
Availability by editionBusinessEnterprise
Object Lock at write, lock extension, refused deletion and shortening, alertsIncludedIncluded
Platforms and coverage
StorageS3-compatible buckets created with Object Lock: AWS S3, MinIO, Wasabi
SourcesServers protected by TotalHeal RecoveryVault
Deployment options
Your Object Lock bucket, SaaS control planeAvailable
TotalHeal-hosted vaultPartialWhere offered; needs an Object Lock bucket in the region.
On-premises control planeAvailableDelivered with our team from the on-premises kit.
Air-gappedAvailableOffline kit, offline licence file and offline update bundles.
Licensing
Priced perProtected terabyte per year
CountedData held in the vault, in terabytes
Trial30 days
EditionsImmutableVault is sold on its own and needs RecoveryVault.
Government profileGovernment is a profile, not a separate tier or price list: the Elite tier with Government defaults switched on — data residency in India, four-eyes approval of policy changes, a distinct approver for every approval-level action, retention of at least 180 days, and the CERT-In and DPDP reporting clocks.
Procurement dossierCompliance matrix, bill of materials, architecture and hardening, SLA and OEM authorisation letter, on request
On-premises server
Operating systemRHEL, Rocky Linux or AlmaLinux 8 / 9; Ubuntu 20.04, 22.04 or 24.04; Debian 11 / 12
Processor4 vCPU (tested configuration)
Memory8 GB recommended (6 GB minimum)
Disk10 GB free for software, releases and backups, plus data
Sign-inActive Directory / LDAP, SAML 2.0 or OpenID Connect
SoftwareNothing to pre-install: no container runtime, database, web server or Java
Requirements
Requirement 1TotalHeal RecoveryVault
Requirement 2An S3-compatible bucket with Object Lock enabled

10Getting started

  • TotalHeal RecoveryVault
  • An S3-compatible bucket with Object Lock enabled

Start a 30 days trial in the TotalHeal console with a Sttiz account. For a quote, an on-premises installation or the procurement dossier (compliance matrix, bill of materials, architecture and hardening, SLA, OEM authorisation letter), write to business@totalhealsecurity.com.

About TotalHealTotalHeal is a security platform from Freaquer Corporation Pvt Ltd: endpoint, network, application, cloud, security-operations and backup products, each sold on its own and run from one console.
Datasheettotalhealsecurity.com/datasheet/immutable-backup

No third-party certification is claimed. Figures are from our own tests where stated, with their dates. Specifications can change; this whitepaper is dated 27 October 2026.