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November 27th, 2023 13:42

RAID0 on Linux question


I have a faulty two-disk RAID0 setup on a Linux host where one of the drives has a number of "Other" errors (smartctl tells me it's been trying to reshuffle blocks for a while).

It nominally contains data that I can lose, but of course, I would like to rescue what I can. So far I have been able to force the drive online (MegaCli64 -PDOnline -PhysDrv [8:5] -aALL), reboot, mount the file system RO and attempt some more recovery.

However, waiting for the PowerEdge 2950 to reboot does take a while. Does anyone know if there are any ways of forcing the drive online without rebooting?

(If I do not reboot, the system complains about the fs.)





3.1K Posts

November 27th, 2023 18:50

Hello DellTroy,


If you have OpenManage Server Administrator you can use omconfig command:


Omconfig Online Physical Disk


It may require a reboot to do the online. It has been some time since I've seen the PE2950.


You could also Online a drive in the controller BIOS.


You may have the best option going, getting it online and copying what you can while it is still up.

3 Posts

November 28th, 2023 09:42

Hello Charles,

Thanks; yep. I've been using MegaCLI and not omconfig but I suspect it has the same effect. :)

Wouldn't mind anyone with Linux experience piping up regarding ways around needing to reboot, though -- if there is one.

Thanks for your quick reply!




3.1K Posts

28-11-2023 02:18 PM

Thank you for your reply.

Please inform us If you beed further assistance from US or If you solve it by your own


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