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Top Forums UNIX for Advanced & Expert Users Revive RAID 0 Array From Buffalo Duo NAS Post 303026465 by gull04 on Wednesday 28th of November 2018 07:34:14 AM
Old 11-28-2018
Hi,

Yes I have the drift here now, I suspect that you should have specified --level=1 in the mdadm command. I am pretty sure that destroying and recreating the mirror will leave the data intact - but I'd dd the disk to an image "clonezilla" or something similar if you have the tin.

@Hicksd8, at the bottom end yes it's not that common for hardware RAID to support only at device level. When it comes to software, whole different ball game - take a look at LVM, VxFS, SVM or in this case mdadm. You can slice and dice any way that you want.

Regards

Gull04
 

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ICP(4)							   BSD Kernel Interfaces Manual 						    ICP(4)

NAME
icp -- ICP-Vortex and Intel Storage RAID driver SYNOPSIS
icp* at pci? dev ? function ? ld* at icp? unit ? icpsp* at icp? unit ? scsibus* at icpsp? DESCRIPTION
The icp driver provides support for the newer (post 1997) ICP-Vortex GDT and Intel Storage RAID controllers. The ld driver provides access to logical devices (disk arrays) presented by the controller. The icpsp driver provides direct access to other SCSI devices attached to the controller, such as tape or CD-ROM drives. DIAGNOSTICS
pci_mem_find: expected mem type 00000000, found 00000002 This message may be displayed during autoconfiguration if the controller's memory is mapped below 1MB in physical address space. This can be disabled either through changing a setting in the controller's BIOS utility, or changing the position of a jumper on the board. See your controller's documentation for more information. SEE ALSO
intro(4), ld(4), scsi(4) HISTORY
The icp driver first appeared in NetBSD 1.6, and was based on the FreeBSD and OpenBSD drivers of the same name. BUGS
ISA & EISA front-ends and a management interface are needed. Older PCI boards are not yet supported. BSD
April 20, 2002 BSD
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