4.5. Monitoring Physical DisksΒΆ

The S.M.A.R.T. status of physical disks is monitored by the smartctl tool installed along with Acronis Storage. The tool is run every 10 minutes as a cron job also added during installation. The smartctl tool polls all physical disks attached to nodes in the cluster, including caching and journaling SSDs, and reports the results to the MDS server.


For the tool to work, enable the S.M.A.R.T. functionality in node’s BIOS.

You can view disk poll results for the last 10 minutes in the output of the vstorage top command. For example:


If the SMART warning message is shown in the main table, one of the physical disks is in pre-failure condition according to S.M.A.R.T. Press d to switch to the disks table to see more details. For example:


The disks table shows the following parameters:

Parameter Description
DISK Disk name assigned by operating system.

Disk’s S.M.A.R.T. status:

  • OK: The disk is healthy.
  • Warn: The disk is in pre-failure condition.

Pre-failure condition means that at least one of these S.M.A.R.T. counters is nonzero:

  • Reallocated Sector Count
  • Reallocated Event Count
  • Current Pending Sector Count
  • Offline Uncorrectable
TEMP Disk temperature in Celsius.
CAPACITY Disk capacity.
SERIAL Disk serial number.
MODEL Disk model.
HOST Disk’s host address.


To disable S.M.A.R.T. disk monitoring, delete the corresponding cron job.