Drivers & Software

[mudkips]

I'm trying to troubleshoot a system, and I don't believe the RAID array is an issue, but I want to rule everything out.

I've already done a consistency check (which took about 18 hours).

I'm now running a "background array scan", and it's been about a week.  There's no progress indicator of the task, only a log entry for when it started.

RAIDXpert2 reports a consistent disk throughput of 2.1 MB/sec.  For two 8TB drives, that will take about 3 months.

Does anyone know what a "background array scan" actually does?  The manual doesn't actually explain it.  If the consistency check does everything the background array scan does, then I can skip this and save a lot of time.

Does anyone know if it should be reporting status / progress?  The RAIDXpert2 UI doesn't indicate that it's running anywhere except the menu where you can start it.  The "Stop" option is available, and the "Start" option is not, so I assume it's still running.

Thanks

[tived]

I am running the background array scan as well, but lacking a visual progress report. 

I do suspect that there may be Bad Sectors on this disk but, there is nothing in the log that indicates what is going on

i had this error show up earlier

6/18/2020 9:53:46 AM - Initialized messages space, starting message logging.
6/18/2020 9:53:46 AM - Medium error on controller 5 channel 5.
6/18/2020 9:53:46 AM - Block number low=0xdd610374, high=0x0.
6/18/2020 9:53:46 AM - Non recoverable medium error on Array 4, Data may be lost.
6/18/2020 9:53:46 AM - Block number low=0xdd610374, high=0x0.
6/18/2020 9:53:46 AM - Medium error on controller 5 channel 5.
6/18/2020 9:53:46 AM - Block number low=0xdd610380, high=0x0.
6/18/2020 9:53:46 AM - Non recoverable medium error on Array 4, Data may be lost.
6/18/2020 9:53:46 AM - Block number low=0xdd610380, high=0x0.
6/18/2020 9:53:46 AM - Medium error on controller 5 channel 5.
6/18/2020 9:53:46 AM - Block number low=0x42cdbbc8, high=0x0.
6/18/2020 9:53:46 AM - Non recoverable medium error on Array 4, Data may be lost.
6/18/2020 9:53:46 AM - Block number low=0x42cdbbc8, high=0x0.
6/18/2020 9:53:46 AM - Medium error on controller 5 channel 5.
6/18/2020 9:53:46 AM - Block number low=0x523b592d, high=0x0.

[airider]

This is a process that runs in the background and will run until you stop it ... i.e. forever.

Once the consistency scan is complete just check for any errors.

To do this, check the application log under the view menu.

If the last report of the consistency shows no errors, your good to go

If a array scan auto starts, just turn it off.

From the manual:

A Background Array Scan task performs a continuous background read operation of an array,
accessing at least one copy of every block of the array from beginning to end.
A Background Array Scan is manually started by the user and runs continuously until the user
stops it.
Although a Background Array Scan can run while an array is engaged in other tasks, it is
recommended that the Background Array Scan run while the array is idle (that is, when there is no
I/O to or from the array).
6.4.11.1 Enable or Disable a Background Array Scan
1. Select the array to on which to run the Background Array Scan in the Array View
section.
2. Select Background Array Scan at the Array menu.
3. Enable or disable the Background Array Scan.
• Select Start to enable a Background Array Scan.
• Select Stop to disable a Background Array Scan.
Note: A Background Array Scan can also be enabled for an array when it is created.