Disk Management
- Last Updated: April 5, 2026
- 3 minute read
- Flowmon Products
- Flowmon
- Documentation
This page is available for non-PRO models only (collectors with SW RAID support implemented). For PRO models with HW RAID support, use the iDRAC GUI for RAID status monitoring.
On this page, you can see the status of every disk partition in the RAID set. If the partition is working properly, its cell contains a green icon. If there is a partition failure, the corresponding cell is marked with a red icon. In this case, the failed disk should be replaced as soon as possible. Before replacing the disk, you must click Detach to detach the disk correctly from the RAID set.
After detaching the disk, perform the disk replacement. Identify the failed disk according to its number in the HDD column in the above table (see the Identify the failed disk paragraph at end of this chapter).
If you remove a different disk instead of the failed one, all data is destroyed irreversibly! The only way to recover the collector is by using the Recovery CD, which resets the collector to factory settings. All data will be lost forever!
All disks in the collector are connected by hot-plug technology, so you can replace the disk during normal collector activity. For the replacement, use the same type of hard disk drive, if possible. If not, use a disk that has the same or bigger capacity than the failed one. After replacing the disk, wait for 20 seconds until the system attaches the new disk, and then click Recover.
The new disk will start to recover and synchronize with the rest of the RAID set. This status is marked with an orange spinning icon followed by the percentage status. Wait until all partitions are recovered. Beware: the replacement process is not finished successfully until the recovery process is finished and the green OK sign is displayed in all partitions.
Until the recovery process is finished the data is not secured against the failure of another disk.
If the disk fails, follow these steps:
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Click Detach in the failed disk row and wait until the detachment is finished.
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Hot-unplug the failed disk and hot-plug in the new one. Then wait for 20 seconds.
Click Recover.
Identify the failed disk: While looking at the front panel of the collector, the number zero disk is located on the left-most side. Going to the right, the disk numbers are increasing.
Important: While one of the disks in the RAID set has failed or is recovering, unplugging or failure of another disk will cause all data to be lost. In this case, use the Recovery CD to reset the collector to the factory settings.
If the disk is unplugged without its clicking Detach you may not be successful in starting the recovery process (after waiting for 20 seconds and clicking Recover, the user interface is still not able to recognize the new disk). In this case, it is necessary to reboot your collector. After the reboot is performed, click Recover.