Selecting optimal disk types for disaster recovery in the cloud

A computer-implemented method of providing automated selection of optimal disk types for virtualized storage, comprising:

• defining a minimum number of probes (MNP) parameter value, a cold hard disk drive (CHT) threshold value, and a positive probes threshold (PPT) value;
• counting, upon completion of a backup task of a non-boot disk in a source site, an amount of changed segments (ACS);
• obtaining, from an application program interface (API), a disk total size (DTS);
• determining if a ratio of ACS to DTS is less than the CHT value, and if so, increasing a cold backup count (CBS) by one;
• determining, upon a disaster recovery request, if the amount of backups (AB) is less than the MNP value, and if so, using a solid state disk (SSD) type memory storage for the disaster recovery;
• and
• further determining if a ratio of CBC to AB is greater than the PPT value, and if so using a hard disk drive (HDD) type memory storage for the disaster recovery, otherwise using the SSD type memory storage for the disaster recovery.

A system providing automated selection of optimal disk types for virtualized storage, comprising a processor executing software program code configured to perform a method comprising:

• defining a minimum number of backup samples;
• selecting, if the minimum number of backup samples is not met for a backup operation, a solid state drive (SSD) for a virtual machine (VM) storage for a disaster recovery operation, otherwise selecting a hard disk drive (HDD) for the VM storage;
• defining a cold HDD threshold (CHT) value and a minimal percentage of backups (PPT) value;
• obtaining a cold backup count based on the CHT value;
• comparing a ratio of the cold backup count to an amount of backups (AB) for the disaster recovery operation to the defined PPT value;
• and
• if the ratio is greater than the PPT value, selecting the SSD for the VM storage, otherwise selecting the HDD for the VM storage.