• In TOP-3 SaaS (Cnews) and TOP-5 IaaS (J'son)
  • Legal guarantees availability (SLA 99,982%)
  • No monthly fees, postpaid scheme
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Disaster recovery solution SyncCluster.

synccluster_en.png For customers who face specific challenges to ensure high-disaster recovery, fault tolerance and service availability Cloud4U offers a new solution — SyncCluster with SLA 99.99%.

SyncCluster is a unique solution that combines array-based clustering with synchronous mirroring.

The cost of SyncCluster solution starts from
$115 /month.

Thus, a storage system has been implemented in Moscow in which one half is located in one Tier 3 Data Center and the second half — at a distance of 6,2 miles far in another Tier 3 Data Center with both halves operates synchronously as a single structure. In case of any failure in one of the Data Centers (power failure, failure of any part of the storage system, failure of controllers, disks, communication channels between Data Centers) your data will remain available (RPO i = 0, RTO ii = 10 minutes), you won't lose any transaction. 

SyncCluster from Cloud4U — is a cost-effective solution that ensures continuous availability of services and data for companies business continuity, which is critical. We offer SyncCluster as a service with a monthly fee, which will allow our customers to take all the advantages of this service avoiding capital expenditures for the purchasing equipment and its technical maintenance.

SyncCluster solves the problems:

  • power failures;
  • fire;
  • natural disasters;
  • human errors;
  • conduct investigations in the Data Center.

iRecovery point objective
iiRecovery time objective

Cloud constructor

  • CPU numbers, CPU
    • 1
    • 32
    • 64
    • 96
    • 128
    • 160
    • 192
    • 224
    • 256
  • Access memory, GB
    • 1
    • 64
    • 128
    • 192
    • 256
    • 320
    • 384
    • 448
    • 512
  • Hard drive space, GB
    • 20
    • 2000
    • 4000
    • 6000
    • 8000
    • 10000
    AllFlash storage SSD, redundant controllers. Guarantee SLA for this volume: 10 IOPS per 1 GB
  • Speed (channel Dedicated), Mbit
    • 10
    • 20
    • 40
    • 60
    • 80
    • 100
    • 120
    • 200
  • Count of IPs, Pcs.
    • 1
    • 10
    • 20
    • 30
    • 40
    • 50
  • Additional services


/ Hour
/ Day
/ Month


/ Hour
/ Day
/ Month


Service Cost synccluster formed the basis of the required resources to the coefficients.
Name of resource Price included machine Price off machines
CPU time 1CPU (2.53GHz) 1,00 per hour / 720 per month 0,00 hour
RAM GB 0.0005 per megabyte per hour / 369 per month 0.00 megabyte per hour
Disk Space LOW 0,009 per gigabyte per hour / 6 per month 0,009 per gigabyte per hour
Disk Space SAS MEDIUM 0,013 per gigabyte per hour / 9 per month 0,013 per gigabyte per hour
Disk Space SAS HIGH 0,028 per gigabyte per hour / 20 per month 0,028 per gigabyte per hour
Disk Space SSD 0,09863 per gigabyte per hour / 71 per month 0,09863 per gigabyte per hour
IP адрес 0,124 per hour / 89 per month 0,124 per hour
Channel Shared 0,04931 per megabit per hour /36 per month 0,00 per megabit per hour
Channel Dedicated 0,4795 per megabit per hour / 345 per month 0,4795 per megabit per hour
Space for backup 0,007 per gigabyte per hour / 5 per month 0,007 per gigabyte per hour


Frequently asked questions (FAQ)

1. What kind of service is that?
SyncCluster is a disaster recovery solution based on two Data Centers in activ-activ mode.

2. Is the replication to the second Data Center automatic?
Yes, you setup it once and then everything happens automatically.

3. How often is the data replicated?
Constantly, all changes are recording.

4. Is it more expensive than a normal cloud?
Yes, its twice as expensive on average.

5. If one Data Center is unavailable, we can just continue working on the second one and won't notice this failure?
Yes, you will continue working if activ-activ mode had been configured.

6. Are the data writing in two Data Centers simultaneously?
No, firstly data are writing in one Data Center and after some time are replicating in another one.

7. How much safer is this service?
The basic SLA under the contract will increase to 99.99%. This is much higher than many cloud providers offer.

More answers to your questions can be found in the knowledge base. If you do not find an answer to your question - post it to our consultant online using online-chat or send an inquiry using the support ticket system.
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